# IGNITE-226: WIP.

Project: http://git-wip-us.apache.org/repos/asf/incubator-ignite/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-ignite/commit/fd1f854b
Tree: http://git-wip-us.apache.org/repos/asf/incubator-ignite/tree/fd1f854b
Diff: http://git-wip-us.apache.org/repos/asf/incubator-ignite/diff/fd1f854b

Branch: refs/heads/ignite-143
Commit: fd1f854bb81c6388fc5ab761c9346237ebc92051
Parents: 75eb190
Author: vozerov-gridgain <voze...@gridgain.com>
Authored: Fri Feb 13 17:35:55 2015 +0300
Committer: vozerov-gridgain <voze...@gridgain.com>
Committed: Fri Feb 13 17:35:55 2015 +0300

----------------------------------------------------------------------
 .../igfs/hadoop/v1/IgfsHadoopFileSystem.java    | 18 ++---
 .../igfs/hadoop/v2/IgfsHadoopFileSystem.java    | 14 ++--
 .../igfs/hadoop/IgfsHadoopEndpoint.java         | 16 ++--
 .../hadoop/IgfsHadoopFileSystemWrapper.java     |  4 +-
 .../internal/igfs/hadoop/IgfsHadoopInProc.java  | 48 ++++++------
 .../internal/igfs/hadoop/IgfsHadoopOutProc.java | 22 +++---
 .../internal/igfs/hadoop/IgfsHadoopWrapper.java | 16 ++--
 .../hadoop/GridHadoopClassLoader.java           |  8 +-
 .../GridHadoopDefaultMapReducePlanner.java      |  8 +-
 .../GridHadoopClientProtocolSelfTest.java       | 30 ++++----
 .../apache/ignite/igfs/IgfsEventsTestSuite.java | 80 ++++++++++----------
 .../IgfsHadoop20FileSystemAbstractSelfTest.java | 46 +++++------
 .../igfs/IgfsHadoopDualAbstractSelfTest.java    | 60 +++++++--------
 .../IgfsHadoopFileSystemAbstractSelfTest.java   | 38 +++++-----
 .../IgfsHadoopFileSystemClientSelfTest.java     | 30 ++++----
 .../IgfsHadoopFileSystemHandshakeSelfTest.java  | 38 +++++-----
 .../IgfsHadoopFileSystemIpcCacheSelfTest.java   | 16 ++--
 ...IgfsHadoopFileSystemLoggerStateSelfTest.java | 42 +++++-----
 ...fsHadoopFileSystemSecondaryModeSelfTest.java | 42 +++++-----
 .../igfs/IgfsNearOnlyMultiNodeSelfTest.java     | 14 ++--
 .../hadoop/GridHadoopAbstractSelfTest.java      | 36 ++++-----
 .../hadoop/GridHadoopAbstractWordCountTest.java | 10 +--
 .../hadoop/GridHadoopCommandLineTest.java       | 18 ++---
 ...idHadoopDefaultMapReducePlannerSelfTest.java | 36 ++++-----
 .../hadoop/GridHadoopFileSystemsTest.java       |  6 +-
 .../hadoop/GridHadoopGroupingTest.java          |  2 +-
 .../hadoop/GridHadoopJobTrackerSelfTest.java    |  6 +-
 .../GridHadoopMapReduceEmbeddedSelfTest.java    |  8 +-
 .../hadoop/GridHadoopMapReduceTest.java         | 12 +--
 .../hadoop/GridHadoopSortingTest.java           | 12 +--
 .../hadoop/GridHadoopTaskExecutionSelfTest.java | 12 +--
 .../hadoop/GridHadoopTasksAllVersionsTest.java  | 24 +++---
 ...GridHadoopExternalTaskExecutionSelfTest.java |  6 +-
 .../igfs/IgfsPerformanceBenchmark.java          | 18 ++---
 34 files changed, 398 insertions(+), 398 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v1/IgfsHadoopFileSystem.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v1/IgfsHadoopFileSystem.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v1/IgfsHadoopFileSystem.java
index 42f5c5f..b877b86 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v1/IgfsHadoopFileSystem.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v1/IgfsHadoopFileSystem.java
@@ -141,7 +141,7 @@ public class IgfsHadoopFileSystem extends FileSystem {
     private boolean seqReadsBeforePrefetchOverride;
 
     /** IGFS group block size. */
-    private long ggfsGrpBlockSize;
+    private long igfsGrpBlockSize;
 
     /** Flag that controls whether file writes should be colocated. */
     private boolean colocateFileWrites;
@@ -247,7 +247,7 @@ public class IgfsHadoopFileSystem extends FileSystem {
             // Handshake.
             IgfsHandshakeResponse handshake = rmtClient.handshake(logDir);
 
-            ggfsGrpBlockSize = handshake.blockSize();
+            igfsGrpBlockSize = handshake.blockSize();
 
             IgfsPaths paths = handshake.secondaryPaths();
 
@@ -527,13 +527,13 @@ public class IgfsHadoopFileSystem extends FileSystem {
                     LOG.debug("Opening input stream [thread=" + 
Thread.currentThread().getName() + ", path=" + path +
                         ", bufSize=" + bufSize + ']');
 
-                IgfsHadoopInputStream ggfsIn = new 
IgfsHadoopInputStream(stream, stream.length(),
+                IgfsHadoopInputStream igfsIn = new 
IgfsHadoopInputStream(stream, stream.length(),
                     bufSize, LOG, clientLog, logId);
 
                 if (LOG.isDebugEnabled())
                     LOG.debug("Opened input stream [path=" + path + ", 
delegate=" + stream + ']');
 
-                return new FSDataInputStream(ggfsIn);
+                return new FSDataInputStream(igfsIn);
             }
         }
         finally {
@@ -598,12 +598,12 @@ public class IgfsHadoopFileSystem extends FileSystem {
                 if (LOG.isDebugEnabled())
                     LOG.debug("Opened output stream in create [path=" + path + 
", delegate=" + stream + ']');
 
-                IgfsHadoopOutputStream ggfsOut = new 
IgfsHadoopOutputStream(stream, LOG, clientLog,
+                IgfsHadoopOutputStream igfsOut = new 
IgfsHadoopOutputStream(stream, LOG, clientLog,
                     logId);
 
                 bufSize = Math.max(64 * 1024, bufSize);
 
-                out = new BufferedOutputStream(ggfsOut, bufSize);
+                out = new BufferedOutputStream(igfsOut, bufSize);
 
                 FSDataOutputStream res = new FSDataOutputStream(out, null, 0);
 
@@ -672,12 +672,12 @@ public class IgfsHadoopFileSystem extends FileSystem {
                 if (LOG.isDebugEnabled())
                     LOG.debug("Opened output stream in append [path=" + path + 
", delegate=" + stream + ']');
 
-                IgfsHadoopOutputStream ggfsOut = new 
IgfsHadoopOutputStream(stream, LOG, clientLog,
+                IgfsHadoopOutputStream igfsOut = new 
IgfsHadoopOutputStream(stream, LOG, clientLog,
                     logId);
 
                 bufSize = Math.max(64 * 1024, bufSize);
 
-                BufferedOutputStream out = new BufferedOutputStream(ggfsOut, 
bufSize);
+                BufferedOutputStream out = new BufferedOutputStream(igfsOut, 
bufSize);
 
                 return new FSDataOutputStream(out, null, 0);
             }
@@ -1050,7 +1050,7 @@ public class IgfsHadoopFileSystem extends FileSystem {
     /** {@inheritDoc} */
     @SuppressWarnings("deprecation")
     @Override public long getDefaultBlockSize() {
-        return ggfsGrpBlockSize;
+        return igfsGrpBlockSize;
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v2/IgfsHadoopFileSystem.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v2/IgfsHadoopFileSystem.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v2/IgfsHadoopFileSystem.java
index 856505b..c3642d4 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v2/IgfsHadoopFileSystem.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/igfs/hadoop/v2/IgfsHadoopFileSystem.java
@@ -466,13 +466,13 @@ public class IgfsHadoopFileSystem extends 
AbstractFileSystem implements Closeabl
                     LOG.debug("Opening input stream [thread=" + 
Thread.currentThread().getName() + ", path=" + path +
                         ", bufSize=" + bufSize + ']');
 
-                IgfsHadoopInputStream ggfsIn = new 
IgfsHadoopInputStream(stream, stream.length(),
+                IgfsHadoopInputStream igfsIn = new 
IgfsHadoopInputStream(stream, stream.length(),
                     bufSize, LOG, clientLog, logId);
 
                 if (LOG.isDebugEnabled())
                     LOG.debug("Opened input stream [path=" + path + ", 
delegate=" + stream + ']');
 
-                return new FSDataInputStream(ggfsIn);
+                return new FSDataInputStream(igfsIn);
             }
         }
         finally {
@@ -565,12 +565,12 @@ public class IgfsHadoopFileSystem extends 
AbstractFileSystem implements Closeabl
 
                 assert stream != null;
 
-                IgfsHadoopOutputStream ggfsOut = new 
IgfsHadoopOutputStream(stream, LOG,
+                IgfsHadoopOutputStream igfsOut = new 
IgfsHadoopOutputStream(stream, LOG,
                     clientLog, logId);
 
                 bufSize = Math.max(64 * 1024, bufSize);
 
-                out = new BufferedOutputStream(ggfsOut, bufSize);
+                out = new BufferedOutputStream(igfsOut, bufSize);
 
                 FSDataOutputStream res = new FSDataOutputStream(out, null, 0);
 
@@ -783,18 +783,18 @@ public class IgfsHadoopFileSystem extends 
AbstractFileSystem implements Closeabl
     @Override public BlockLocation[] getFileBlockLocations(Path path, long 
start, long len) throws IOException {
         A.notNull(path, "path");
 
-        IgfsPath ggfsPath = convert(path);
+        IgfsPath igfsPath = convert(path);
 
         enterBusy();
 
         try {
-            if (modeRslvr.resolveMode(ggfsPath) == PROXY)
+            if (modeRslvr.resolveMode(igfsPath) == PROXY)
                 return secondaryFs.getFileBlockLocations(path, start, len);
             else {
                 long now = System.currentTimeMillis();
 
                 List<IgfsBlockLocation> affinity = new ArrayList<>(
-                    rmtClient.affinity(ggfsPath, start, len));
+                    rmtClient.affinity(igfsPath, start, len));
 
                 BlockLocation[] arr = new BlockLocation[affinity.size()];
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopEndpoint.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopEndpoint.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopEndpoint.java
index 2855c10..35638ea 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopEndpoint.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopEndpoint.java
@@ -36,7 +36,7 @@ public class IgfsHadoopEndpoint {
     public static final String LOCALHOST = "127.0.0.1";
 
     /** IGFS name. */
-    private final String ggfsName;
+    private final String igfsName;
 
     /** Grid name. */
     private final String gridName;
@@ -63,8 +63,8 @@ public class IgfsHadoopEndpoint {
 
             StringBuilder sb = new StringBuilder();
 
-            if (endpoint.ggfs() != null)
-                sb.append(endpoint.ggfs());
+            if (endpoint.igfs() != null)
+                sb.append(endpoint.igfs());
 
             if (endpoint.grid() != null)
                 sb.append(":").append(endpoint.grid());
@@ -92,7 +92,7 @@ public class IgfsHadoopEndpoint {
         IgniteBiTuple<String, Integer> hostPort;
 
         if (tokens.length == 1) {
-            ggfsName = null;
+            igfsName = null;
             gridName = null;
 
             hostPort = hostPort(connStr, connStr);
@@ -102,12 +102,12 @@ public class IgfsHadoopEndpoint {
 
             if (authStr.isEmpty()) {
                 gridName = null;
-                ggfsName = null;
+                igfsName = null;
             }
             else {
                 String[] authTokens = authStr.split(":", -1);
 
-                ggfsName = F.isEmpty(authTokens[0]) ? null : authTokens[0];
+                igfsName = F.isEmpty(authTokens[0]) ? null : authTokens[0];
 
                 if (authTokens.length == 1)
                     gridName = null;
@@ -171,8 +171,8 @@ public class IgfsHadoopEndpoint {
     /**
      * @return IGFS name.
      */
-    @Nullable public String ggfs() {
-        return ggfsName;
+    @Nullable public String igfs() {
+        return igfsName;
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopFileSystemWrapper.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopFileSystemWrapper.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopFileSystemWrapper.java
index eb41de0..9935466 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopFileSystemWrapper.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopFileSystemWrapper.java
@@ -101,13 +101,13 @@ public class IgfsHadoopFileSystemWrapper implements Igfs, 
AutoCloseable {
         boolean wrongVer = X.hasCause(e, RemoteException.class) ||
             (e.getMessage() != null && e.getMessage().contains("Failed on 
local"));
 
-        IgfsException ggfsErr = !wrongVer ? cast(detailMsg, e) :
+        IgfsException igfsErr = !wrongVer ? cast(detailMsg, e) :
             new IgfsInvalidHdfsVersionException("HDFS version you are 
connecting to differs from local " +
                 "version.", e);
 
 
 
-        return ggfsErr;
+        return igfsErr;
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopInProc.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopInProc.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopInProc.java
index 5c5a61e..8245125 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopInProc.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopInProc.java
@@ -33,7 +33,7 @@ import java.util.concurrent.*;
  */
 public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** Target IGFS. */
-    private final IgfsEx ggfs;
+    private final IgfsEx igfs;
 
     /** Buffer size. */
     private final int bufSize;
@@ -48,22 +48,22 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /**
      * Constructor.
      *
-     * @param ggfs Target IGFS.
+     * @param igfs Target IGFS.
      * @param log Log.
      */
-    public IgfsHadoopInProc(IgfsEx ggfs, Log log) {
-        this.ggfs = ggfs;
+    public IgfsHadoopInProc(IgfsEx igfs, Log log) {
+        this.igfs = igfs;
         this.log = log;
 
-        bufSize = ggfs.configuration().getBlockSize() * 2;
+        bufSize = igfs.configuration().getBlockSize() * 2;
     }
 
     /** {@inheritDoc} */
     @Override public IgfsHandshakeResponse handshake(String logDir) {
-        ggfs.clientLogDirectory(logDir);
+        igfs.clientLogDirectory(logDir);
 
-        return new IgfsHandshakeResponse(ggfs.name(), ggfs.proxyPaths(), 
ggfs.groupBlockSize(),
-            ggfs.globalSampling());
+        return new IgfsHandshakeResponse(igfs.name(), igfs.proxyPaths(), 
igfs.groupBlockSize(),
+            igfs.globalSampling());
     }
 
     /** {@inheritDoc} */
@@ -83,7 +83,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public IgfsFile info(IgfsPath path) throws 
IgniteCheckedException {
         try {
-            return ggfs.info(path);
+            return igfs.info(path);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -96,7 +96,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public IgfsFile update(IgfsPath path, Map<String, String> props) 
throws IgniteCheckedException {
         try {
-            return ggfs.update(path, props);
+            return igfs.update(path, props);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -109,7 +109,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Boolean setTimes(IgfsPath path, long accessTime, long 
modificationTime) throws IgniteCheckedException {
         try {
-            ggfs.setTimes(path, accessTime, modificationTime);
+            igfs.setTimes(path, accessTime, modificationTime);
 
             return true;
         }
@@ -125,7 +125,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Boolean rename(IgfsPath src, IgfsPath dest) throws 
IgniteCheckedException {
         try {
-            ggfs.rename(src, dest);
+            igfs.rename(src, dest);
 
             return true;
         }
@@ -140,7 +140,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Boolean delete(IgfsPath path, boolean recursive) throws 
IgniteCheckedException {
         try {
-            return ggfs.delete(path, recursive);
+            return igfs.delete(path, recursive);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -153,7 +153,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public IgfsStatus fsStatus() throws IgniteCheckedException {
         try {
-            return ggfs.globalSpace();
+            return igfs.globalSpace();
         }
         catch (IllegalStateException e) {
             throw new IgfsHadoopCommunicationException("Failed to get file 
system status because Grid is " +
@@ -164,7 +164,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Collection<IgfsPath> listPaths(IgfsPath path) throws 
IgniteCheckedException {
         try {
-            return ggfs.listPaths(path);
+            return igfs.listPaths(path);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -177,7 +177,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Collection<IgfsFile> listFiles(IgfsPath path) throws 
IgniteCheckedException {
         try {
-            return ggfs.listFiles(path);
+            return igfs.listFiles(path);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -190,7 +190,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public Boolean mkdirs(IgfsPath path, Map<String, String> props) 
throws IgniteCheckedException {
         try {
-            ggfs.mkdirs(path, props);
+            igfs.mkdirs(path, props);
 
             return true;
         }
@@ -206,7 +206,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public IgfsPathSummary contentSummary(IgfsPath path) throws 
IgniteCheckedException {
         try {
-            return ggfs.summary(path);
+            return igfs.summary(path);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -221,7 +221,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     @Override public Collection<IgfsBlockLocation> affinity(IgfsPath path, 
long start, long len)
         throws IgniteCheckedException {
         try {
-            return ggfs.affinity(path, start, len);
+            return igfs.affinity(path, start, len);
         }
         catch (IgniteException e) {
             throw new IgniteCheckedException(e);
@@ -234,7 +234,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     /** {@inheritDoc} */
     @Override public IgfsHadoopStreamDelegate open(IgfsPath path) throws 
IgniteCheckedException {
         try {
-            IgfsInputStreamAdapter stream = ggfs.open(path, bufSize);
+            IgfsInputStreamAdapter stream = igfs.open(path, bufSize);
 
             return new IgfsHadoopStreamDelegate(this, stream, 
stream.fileInfo().length());
         }
@@ -250,7 +250,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     @Override public IgfsHadoopStreamDelegate open(IgfsPath path, int 
seqReadsBeforePrefetch)
         throws IgniteCheckedException {
         try {
-            IgfsInputStreamAdapter stream = ggfs.open(path, bufSize, 
seqReadsBeforePrefetch);
+            IgfsInputStreamAdapter stream = igfs.open(path, bufSize, 
seqReadsBeforePrefetch);
 
             return new IgfsHadoopStreamDelegate(this, stream, 
stream.fileInfo().length());
         }
@@ -266,8 +266,8 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     @Override public IgfsHadoopStreamDelegate create(IgfsPath path, boolean 
overwrite, boolean colocate,
         int replication, long blockSize, @Nullable Map<String, String> props) 
throws IgniteCheckedException {
         try {
-            IgfsOutputStream stream = ggfs.create(path, bufSize, overwrite,
-                colocate ? ggfs.nextAffinityKey() : null, replication, 
blockSize, props);
+            IgfsOutputStream stream = igfs.create(path, bufSize, overwrite,
+                colocate ? igfs.nextAffinityKey() : null, replication, 
blockSize, props);
 
             return new IgfsHadoopStreamDelegate(this, stream);
         }
@@ -283,7 +283,7 @@ public class IgfsHadoopInProc implements IgfsHadoopEx {
     @Override public IgfsHadoopStreamDelegate append(IgfsPath path, boolean 
create,
         @Nullable Map<String, String> props) throws IgniteCheckedException {
         try {
-            IgfsOutputStream stream = ggfs.append(path, bufSize, create, 
props);
+            IgfsOutputStream stream = igfs.append(path, bufSize, create, 
props);
 
             return new IgfsHadoopStreamDelegate(this, stream);
         }

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopOutProc.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopOutProc.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopOutProc.java
index b66bdd1..6b5242f 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopOutProc.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopOutProc.java
@@ -76,7 +76,7 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
     private final String grid;
 
     /** IGFS name. */
-    private final String ggfs;
+    private final String igfs;
 
     /** Client log. */
     private final Log log;
@@ -93,12 +93,12 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
      * @param host Host.
      * @param port Port.
      * @param grid Grid name.
-     * @param ggfs IGFS name.
+     * @param igfs IGFS name.
      * @param log Client logger.
      * @throws IOException If failed.
      */
-    public IgfsHadoopOutProc(String host, int port, String grid, String ggfs, 
Log log) throws IOException {
-        this(host, port, grid, ggfs, false, log);
+    public IgfsHadoopOutProc(String host, int port, String grid, String igfs, 
Log log) throws IOException {
+        this(host, port, grid, igfs, false, log);
     }
 
     /**
@@ -106,12 +106,12 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
      *
      * @param port Port.
      * @param grid Grid name.
-     * @param ggfs IGFS name.
+     * @param igfs IGFS name.
      * @param log Client logger.
      * @throws IOException If failed.
      */
-    public IgfsHadoopOutProc(int port, String grid, String ggfs, Log log) 
throws IOException {
-        this(null, port, grid, ggfs, true, log);
+    public IgfsHadoopOutProc(int port, String grid, String igfs, Log log) 
throws IOException {
+        this(null, port, grid, igfs, true, log);
     }
 
     /**
@@ -120,12 +120,12 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
      * @param host Host.
      * @param port Port.
      * @param grid Grid name.
-     * @param ggfs IGFS name.
+     * @param igfs IGFS name.
      * @param shmem Shared memory flag.
      * @param log Client logger.
      * @throws IOException If failed.
      */
-    private IgfsHadoopOutProc(String host, int port, String grid, String ggfs, 
boolean shmem, Log log)
+    private IgfsHadoopOutProc(String host, int port, String grid, String igfs, 
boolean shmem, Log log)
         throws IOException {
         assert host != null && !shmem || host == null && shmem :
             "Invalid arguments [host=" + host + ", port=" + port + ", shmem=" 
+ shmem + ']';
@@ -133,7 +133,7 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
         String endpoint = host != null ? host + ":" + port : "shmem:" + port;
 
         this.grid = grid;
-        this.ggfs = ggfs;
+        this.igfs = igfs;
         this.log = log;
 
         io = IgfsHadoopIpcIo.get(log, endpoint);
@@ -146,7 +146,7 @@ public class IgfsHadoopOutProc implements IgfsHadoopEx, 
IgfsHadoopIpcIoListener
         final IgfsHandshakeRequest req = new IgfsHandshakeRequest();
 
         req.gridName(grid);
-        req.igfsName(ggfs);
+        req.igfsName(igfs);
         req.logDirectory(logDir);
 
         return io.send(req).chain(HANDSHAKE_RES).get();

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopWrapper.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopWrapper.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopWrapper.java
index 8ba369a..3ac2d5a 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopWrapper.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/igfs/hadoop/IgfsHadoopWrapper.java
@@ -333,13 +333,13 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
 
         // 2. Guess that we are in the same VM.
         if (!parameter(conf, PARAM_IGFS_ENDPOINT_NO_EMBED, authority, false)) {
-            IgfsEx ggfs = null;
+            IgfsEx igfs = null;
 
             if (endpoint.grid() == null) {
                 try {
                     Ignite ignite = G.ignite();
 
-                    ggfs = (IgfsEx)ignite.fileSystem(endpoint.ggfs());
+                    igfs = (IgfsEx)ignite.fileSystem(endpoint.igfs());
                 }
                 catch (Exception e) {
                     err = e;
@@ -348,7 +348,7 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
             else {
                 for (Ignite ignite : G.allGrids()) {
                     try {
-                        ggfs = (IgfsEx)ignite.fileSystem(endpoint.ggfs());
+                        igfs = (IgfsEx)ignite.fileSystem(endpoint.igfs());
 
                         break;
                     }
@@ -358,11 +358,11 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
                 }
             }
 
-            if (ggfs != null) {
+            if (igfs != null) {
                 IgfsHadoopEx hadoop = null;
 
                 try {
-                    hadoop = new IgfsHadoopInProc(ggfs, log);
+                    hadoop = new IgfsHadoopInProc(igfs, log);
 
                     curDelegate = new Delegate(hadoop, 
hadoop.handshake(logDir));
                 }
@@ -384,7 +384,7 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
                 IgfsHadoopEx hadoop = null;
 
                 try {
-                    hadoop = new IgfsHadoopOutProc(endpoint.port(), 
endpoint.grid(), endpoint.ggfs(), log);
+                    hadoop = new IgfsHadoopOutProc(endpoint.port(), 
endpoint.grid(), endpoint.igfs(), log);
 
                     curDelegate = new Delegate(hadoop, 
hadoop.handshake(logDir));
                 }
@@ -408,7 +408,7 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
                 IgfsHadoopEx hadoop = null;
 
                 try {
-                    hadoop = new IgfsHadoopOutProc(LOCALHOST, endpoint.port(), 
endpoint.grid(), endpoint.ggfs(),
+                    hadoop = new IgfsHadoopOutProc(LOCALHOST, endpoint.port(), 
endpoint.grid(), endpoint.igfs(),
                         log);
 
                     curDelegate = new Delegate(hadoop, 
hadoop.handshake(logDir));
@@ -430,7 +430,7 @@ public class IgfsHadoopWrapper implements IgfsHadoop {
             IgfsHadoopEx hadoop = null;
 
             try {
-                hadoop = new IgfsHadoopOutProc(endpoint.host(), 
endpoint.port(), endpoint.grid(), endpoint.ggfs(), log);
+                hadoop = new IgfsHadoopOutProc(endpoint.host(), 
endpoint.port(), endpoint.grid(), endpoint.igfs(), log);
 
                 curDelegate = new Delegate(hadoop, hadoop.handshake(logDir));
             }

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/GridHadoopClassLoader.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/GridHadoopClassLoader.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/GridHadoopClassLoader.java
index 1f347c8..11f8358 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/GridHadoopClassLoader.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/GridHadoopClassLoader.java
@@ -73,11 +73,11 @@ public class GridHadoopClassLoader extends URLClassLoader {
      * @param cls Class name.
      * @return {@code true} if we need to check this class.
      */
-    private static boolean isGgfsOrGgHadoop(String cls) {
+    private static boolean isIgfsOrGgHadoop(String cls) {
         String gg = "org.apache.ignite";
         int len = gg.length();
 
-        return cls.startsWith(gg) && (cls.indexOf("ignitefs.", len) != -1 || 
cls.indexOf(".fs.", len) != -1 || cls.indexOf("hadoop.", len) != -1);
+        return cls.startsWith(gg) && (cls.indexOf("igfs.", len) != -1 || 
cls.indexOf(".fs.", len) != -1 || cls.indexOf("hadoop.", len) != -1);
     }
 
     /**
@@ -100,7 +100,7 @@ public class GridHadoopClassLoader extends URLClassLoader {
                 return loadClassExplicitly(name, resolve);
             }
 
-            if (isGgfsOrGgHadoop(name)) { // For GG Hadoop and IGFS classes we 
have to check if they depend on Hadoop.
+            if (isIgfsOrGgHadoop(name)) { // For GG Hadoop and IGFS classes we 
have to check if they depend on Hadoop.
                 Boolean hasDeps = cache.get(name);
 
                 if (hasDeps == null) {
@@ -224,7 +224,7 @@ public class GridHadoopClassLoader extends URLClassLoader {
         if (in == null) // The class is external itself, it must be loaded 
from this class loader.
             return true;
 
-        if (!isGgfsOrGgHadoop(clsName)) // Other classes should not have 
external dependencies.
+        if (!isIgfsOrGgHadoop(clsName)) // Other classes should not have 
external dependencies.
             return false;
 
         final ClassReader rdr;

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/planner/GridHadoopDefaultMapReducePlanner.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/planner/GridHadoopDefaultMapReducePlanner.java
 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/planner/GridHadoopDefaultMapReducePlanner.java
index 44eb404..8e85cc1 100644
--- 
a/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/planner/GridHadoopDefaultMapReducePlanner.java
+++ 
b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/planner/GridHadoopDefaultMapReducePlanner.java
@@ -155,16 +155,16 @@ public class GridHadoopDefaultMapReducePlanner implements 
GridHadoopMapReducePla
             if (IGFS_SCHEME.equalsIgnoreCase(split0.file().getScheme())) {
                 IgfsHadoopEndpoint endpoint = new 
IgfsHadoopEndpoint(split0.file().getAuthority());
 
-                IgfsEx ggfs = null;
+                IgfsEx igfs = null;
 
                 if (F.eq(ignite.name(), endpoint.grid()))
-                    ggfs = (IgfsEx)((IgniteEx)ignite).igfsx(endpoint.ggfs());
+                    igfs = (IgfsEx)((IgniteEx)ignite).igfsx(endpoint.igfs());
 
-                if (ggfs != null && !ggfs.isProxy(split0.file())) {
+                if (igfs != null && !igfs.isProxy(split0.file())) {
                     Collection<IgfsBlockLocation> blocks;
 
                     try {
-                        blocks = ggfs.affinity(new IgfsPath(split0.file()), 
split0.start(), split0.length());
+                        blocks = igfs.affinity(new IgfsPath(split0.file()), 
split0.start(), split0.length());
                     }
                     catch (IgniteException e) {
                         throw new IgniteCheckedException(e);

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/client/hadoop/GridHadoopClientProtocolSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/client/hadoop/GridHadoopClientProtocolSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/client/hadoop/GridHadoopClientProtocolSelfTest.java
index a96eb82..0d4b0fc 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/client/hadoop/GridHadoopClientProtocolSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/client/hadoop/GridHadoopClientProtocolSelfTest.java
@@ -67,7 +67,7 @@ public class GridHadoopClientProtocolSelfTest extends 
GridHadoopAbstractSelfTest
     }
 
     /** {@inheritDoc} */
-    @Override protected boolean ggfsEnabled() {
+    @Override protected boolean igfsEnabled() {
         return true;
     }
 
@@ -111,7 +111,7 @@ public class GridHadoopClientProtocolSelfTest extends 
GridHadoopAbstractSelfTest
 
     /** {@inheritDoc} */
     @Override protected void afterTest() throws Exception {
-        grid(0).fileSystem(GridHadoopAbstractSelfTest.ggfsName).format();
+        grid(0).fileSystem(GridHadoopAbstractSelfTest.igfsName).format();
 
         setupLockFile.delete();
         mapLockFile.delete();
@@ -150,11 +150,11 @@ public class GridHadoopClientProtocolSelfTest extends 
GridHadoopAbstractSelfTest
      * @throws Exception If failed.
      */
     public void testJobCounters() throws Exception {
-        IgniteFs ggfs = 
grid(0).fileSystem(GridHadoopAbstractSelfTest.ggfsName);
+        IgniteFs igfs = 
grid(0).fileSystem(GridHadoopAbstractSelfTest.igfsName);
 
-        ggfs.mkdirs(new IgfsPath(PATH_INPUT));
+        igfs.mkdirs(new IgfsPath(PATH_INPUT));
 
-        try (BufferedWriter bw = new BufferedWriter(new 
OutputStreamWriter(ggfs.create(
+        try (BufferedWriter bw = new BufferedWriter(new 
OutputStreamWriter(igfs.create(
             new IgfsPath(PATH_INPUT + "/test.file"), true)))) {
 
             bw.write(
@@ -268,11 +268,11 @@ public class GridHadoopClientProtocolSelfTest extends 
GridHadoopAbstractSelfTest
      * @throws Exception If failed.
      */
     public void checkJobSubmit(boolean noCombiners, boolean noReducers) throws 
Exception {
-        IgniteFs ggfs = 
grid(0).fileSystem(GridHadoopAbstractSelfTest.ggfsName);
+        IgniteFs igfs = 
grid(0).fileSystem(GridHadoopAbstractSelfTest.igfsName);
 
-        ggfs.mkdirs(new IgfsPath(PATH_INPUT));
+        igfs.mkdirs(new IgfsPath(PATH_INPUT));
 
-        try (BufferedWriter bw = new BufferedWriter(new 
OutputStreamWriter(ggfs.create(
+        try (BufferedWriter bw = new BufferedWriter(new 
OutputStreamWriter(igfs.create(
             new IgfsPath(PATH_INPUT + "/test.file"), true)))) {
 
             bw.write("word");
@@ -389,30 +389,30 @@ public class GridHadoopClientProtocolSelfTest extends 
GridHadoopAbstractSelfTest
         assert jobStatus.getMapProgress() == 1.0f;
         assert jobStatus.getReduceProgress() == 1.0f;
 
-        dumpGgfs(ggfs, new IgfsPath(PATH_OUTPUT));
+        dumpIgfs(igfs, new IgfsPath(PATH_OUTPUT));
     }
 
     /**
      * Dump IGFS content.
      *
-     * @param ggfs IGFS.
+     * @param igfs IGFS.
      * @param path Path.
      * @throws Exception If failed.
      */
     @SuppressWarnings("ConstantConditions")
-    private static void dumpGgfs(IgniteFs ggfs, IgfsPath path) throws 
Exception {
-        IgfsFile file = ggfs.info(path);
+    private static void dumpIgfs(IgniteFs igfs, IgfsPath path) throws 
Exception {
+        IgfsFile file = igfs.info(path);
 
         assert file != null;
 
         System.out.println(file.path());
 
         if (file.isDirectory()) {
-            for (IgfsPath child : ggfs.listPaths(path))
-                dumpGgfs(ggfs, child);
+            for (IgfsPath child : igfs.listPaths(path))
+                dumpIgfs(igfs, child);
         }
         else {
-            try (BufferedReader br = new BufferedReader(new 
InputStreamReader(ggfs.open(path)))) {
+            try (BufferedReader br = new BufferedReader(new 
InputStreamReader(igfs.open(path)))) {
                 String line = br.readLine();
 
                 while (line != null) {

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsEventsTestSuite.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsEventsTestSuite.java 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsEventsTestSuite.java
index a685091..05a7b1d 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsEventsTestSuite.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsEventsTestSuite.java
@@ -77,14 +77,14 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class ShmemPrivate extends IgfsEventsAbstractSelfTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
+            igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
                 put("type", "shmem");
                 put("port", 
String.valueOf(IpcSharedMemoryServerEndpoint.DFLT_IPC_PORT + 1));
             }});
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -94,14 +94,14 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class LoopbackPrivate extends IgfsEventsAbstractSelfTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
+            igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
                 put("type", "tcp");
                 put("port", 
String.valueOf(IpcSharedMemoryServerEndpoint.DFLT_IPC_PORT + 1));
             }});
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -110,38 +110,38 @@ public class IgfsEventsTestSuite extends TestSuite {
      */
     public abstract static class PrimarySecondaryTest extends 
IgfsEventsAbstractSelfTest {
         /** Secondary file system. */
-        private static IgniteFs ggfsSec;
+        private static IgniteFs igfsSec;
 
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
+            igfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
                 "igfs://igfs-secondary:grid-secondary@127.0.0.1:11500/",
                 
"modules/core/src/test/config/hadoop/core-site-secondary.xml"));
 
-            return ggfsCfg;
+            return igfsCfg;
         }
 
         /**
          * @return IGFS configuration for secondary file system.
          */
-        protected IgfsConfiguration getSecondaryGgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+        protected IgfsConfiguration getSecondaryIgfsConfiguration() throws 
IgniteCheckedException {
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setName("igfs-secondary");
-            ggfsCfg.setDefaultMode(PRIMARY);
-            ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>(){{
+            igfsCfg.setName("igfs-secondary");
+            igfsCfg.setDefaultMode(PRIMARY);
+            igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>(){{
                 put("type", "tcp");
                 put("port", "11500");
             }});
 
-            return ggfsCfg;
+            return igfsCfg;
         }
 
         /** {@inheritDoc} */
         @Override protected void beforeTestsStarted() throws Exception {
-            ggfsSec = startSecondary();
+            igfsSec = startSecondary();
 
             super.beforeTestsStarted();
         }
@@ -158,7 +158,7 @@ public class IgfsEventsTestSuite extends TestSuite {
             super.afterTest();
 
             // Clean up secondary file system.
-            ggfsSec.format();
+            igfsSec.format();
         }
 
         /**
@@ -168,7 +168,7 @@ public class IgfsEventsTestSuite extends TestSuite {
          * @throws Exception If failed.
          */
         @Nullable private IgniteFs startSecondary() throws Exception {
-            IgniteConfiguration cfg = getConfiguration("grid-secondary", 
getSecondaryGgfsConfiguration());
+            IgniteConfiguration cfg = getConfiguration("grid-secondary", 
getSecondaryIgfsConfiguration());
 
             cfg.setLocalHost("127.0.0.1");
             cfg.setPeerClassLoadingEnabled(false);
@@ -185,11 +185,11 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class ShmemDualSync extends PrimarySecondaryTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setDefaultMode(DUAL_SYNC);
+            igfsCfg.setDefaultMode(DUAL_SYNC);
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -199,11 +199,11 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class ShmemDualAsync extends PrimarySecondaryTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setDefaultMode(DUAL_ASYNC);
+            igfsCfg.setDefaultMode(DUAL_ASYNC);
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -213,27 +213,27 @@ public class IgfsEventsTestSuite extends TestSuite {
     public abstract static class LoopbackPrimarySecondaryTest extends 
PrimarySecondaryTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
+            igfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
                 "igfs://igfs-secondary:grid-secondary@127.0.0.1:11500/",
                 
"modules/core/src/test/config/hadoop/core-site-loopback-secondary.xml"));
 
-            return ggfsCfg;
+            return igfsCfg;
         }
 
         /** {@inheritDoc} */
-        @Override protected IgfsConfiguration getSecondaryGgfsConfiguration() 
throws IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getSecondaryGgfsConfiguration();
+        @Override protected IgfsConfiguration getSecondaryIgfsConfiguration() 
throws IgniteCheckedException {
+            IgfsConfiguration igfsCfg = super.getSecondaryIgfsConfiguration();
 
-            ggfsCfg.setName("igfs-secondary");
-            ggfsCfg.setDefaultMode(PRIMARY);
-            ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
+            igfsCfg.setName("igfs-secondary");
+            igfsCfg.setDefaultMode(PRIMARY);
+            igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() 
{{
                 put("type", "tcp");
                 put("port", "11500");
             }});
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -243,11 +243,11 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class LoopbackDualSync extends LoopbackPrimarySecondaryTest {
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setDefaultMode(DUAL_SYNC);
+            igfsCfg.setDefaultMode(DUAL_SYNC);
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 
@@ -257,11 +257,11 @@ public class IgfsEventsTestSuite extends TestSuite {
     public static class LoopbackDualAsync extends LoopbackPrimarySecondaryTest 
{
         /** {@inheritDoc} */
         @Override protected IgfsConfiguration getIgfsConfiguration() throws 
IgniteCheckedException {
-            IgfsConfiguration ggfsCfg = super.getIgfsConfiguration();
+            IgfsConfiguration igfsCfg = super.getIgfsConfiguration();
 
-            ggfsCfg.setDefaultMode(DUAL_ASYNC);
+            igfsCfg.setDefaultMode(DUAL_ASYNC);
 
-            return ggfsCfg;
+            return igfsCfg;
         }
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoop20FileSystemAbstractSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoop20FileSystemAbstractSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoop20FileSystemAbstractSelfTest.java
index fc1dab0..635c988 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoop20FileSystemAbstractSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoop20FileSystemAbstractSelfTest.java
@@ -143,15 +143,15 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
     private void startNodes() throws Exception {
         if (mode != PRIMARY) {
             // Start secondary IGFS.
-            IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+            IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-            ggfsCfg.setDataCacheName("partitioned");
-            ggfsCfg.setMetaCacheName("replicated");
-            ggfsCfg.setName("ggfs_secondary");
-            
ggfsCfg.setIpcEndpointConfiguration(secondaryIpcEndpointConfiguration());
-            ggfsCfg.setManagementPort(-1);
-            ggfsCfg.setBlockSize(512 * 1024);
-            ggfsCfg.setPrefetchBlocks(1);
+            igfsCfg.setDataCacheName("partitioned");
+            igfsCfg.setMetaCacheName("replicated");
+            igfsCfg.setName("igfs_secondary");
+            
igfsCfg.setIpcEndpointConfiguration(secondaryIpcEndpointConfiguration());
+            igfsCfg.setManagementPort(-1);
+            igfsCfg.setBlockSize(512 * 1024);
+            igfsCfg.setPrefetchBlocks(1);
 
             CacheConfiguration cacheCfg = defaultCacheConfiguration();
 
@@ -182,7 +182,7 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
 
             cfg.setDiscoverySpi(discoSpi);
             cfg.setCacheConfiguration(metaCacheCfg, cacheCfg);
-            cfg.setIgfsConfiguration(ggfsCfg);
+            cfg.setIgfsConfiguration(igfsCfg);
             cfg.setIncludeEventTypes(EVT_TASK_FAILED, EVT_TASK_FINISHED, 
EVT_JOB_MAPPED);
             cfg.setLocalHost(U.getLocalHost().getHostAddress());
             cfg.setCommunicationSpi(communicationSpi());
@@ -208,7 +208,7 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(cacheConfiguration(gridName));
-        cfg.setIgfsConfiguration(ggfsConfiguration(gridName));
+        cfg.setIgfsConfiguration(igfsConfiguration(gridName));
         cfg.setIncludeEventTypes(EVT_TASK_FAILED, EVT_TASK_FINISHED, 
EVT_JOB_MAPPED);
         cfg.setLocalHost("127.0.0.1");
         cfg.setCommunicationSpi(communicationSpi());
@@ -251,7 +251,7 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
      * @param gridName Grid name.
      * @return IGFS configuration.
      */
-    protected IgfsConfiguration ggfsConfiguration(String gridName) throws 
IgniteCheckedException {
+    protected IgfsConfiguration igfsConfiguration(String gridName) throws 
IgniteCheckedException {
         IgfsConfiguration cfg = new IgfsConfiguration();
 
         cfg.setDataCacheName("partitioned");
@@ -327,9 +327,9 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
         long used = 0, max = 0;
 
         for (int i = 0; i < 4; i++) {
-            IgniteFs ggfs = grid(i).fileSystem("igfs");
+            IgniteFs igfs = grid(i).fileSystem("igfs");
 
-            IgfsMetrics metrics = ggfs.metrics();
+            IgfsMetrics metrics = igfs.metrics();
 
             used += metrics.localSpaceSize();
             max += metrics.maxSpaceSize();
@@ -1132,10 +1132,10 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
      * @throws Exception If failed.
      */
     public void testListStatus() throws Exception {
-        Path ggfsHome = new Path(primaryFsUri);
+        Path igfsHome = new Path(primaryFsUri);
 
         // Test listing of an empty directory.
-        Path dir = new Path(ggfsHome, "dir");
+        Path dir = new Path(igfsHome, "dir");
 
         fs.mkdir(dir, FsPermission.getDefault(), true);
 
@@ -1249,9 +1249,9 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
 
     /** @throws Exception If failed. */
     public void testGetFileBlockLocations() throws Exception {
-        Path ggfsHome = new Path(primaryFsUri);
+        Path igfsHome = new Path(primaryFsUri);
 
-        Path file = new Path(ggfsHome, "someFile");
+        Path file = new Path(igfsHome, "someFile");
 
         try (OutputStream out = new BufferedOutputStream(fs.create(file, 
EnumSet.noneOf(CreateFlag.class),
             Options.CreateOpts.perms(FsPermission.getDefault())))) {
@@ -1289,9 +1289,9 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
     public void testZeroReplicationFactor() throws Exception {
         // This test doesn't make sense for any mode except of PRIMARY.
         if (mode == PRIMARY) {
-            Path ggfsHome = new Path(primaryFsUri);
+            Path igfsHome = new Path(primaryFsUri);
 
-            Path file = new Path(ggfsHome, "someFile");
+            Path file = new Path(igfsHome, "someFile");
 
             try (FSDataOutputStream out = fs.create(file, 
EnumSet.noneOf(CreateFlag.class),
                 Options.CreateOpts.perms(FsPermission.getDefault()), 
Options.CreateOpts.repFac((short)1))) {
@@ -1721,9 +1721,9 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
      * @throws Exception If error occurs.
      */
     public void testClientReconnect() throws Exception {
-        final Path ggfsHome = new Path(primaryFsUri);
+        final Path igfsHome = new Path(primaryFsUri);
 
-        final Path filePath = new Path(ggfsHome, "someFile");
+        final Path filePath = new Path(igfsHome, "someFile");
 
         final FSDataOutputStream s = fs.create(filePath, 
EnumSet.noneOf(CreateFlag.class),
             Options.CreateOpts.perms(FsPermission.getDefault())); // Open 
stream before stopping IGFS.
@@ -1815,9 +1815,9 @@ public abstract class 
IgfsHadoop20FileSystemAbstractSelfTest extends IgfsCommonA
      */
     private void checkConsistency(int createBufSize, int writeCntsInCreate, 
int openAfterCreateBufSize,
         int appendBufSize, int writeCntsInAppend, int openAfterAppendBufSize) 
throws Exception {
-        final Path ggfsHome = new Path(primaryFsUri);
+        final Path igfsHome = new Path(primaryFsUri);
 
-        Path file = new Path(ggfsHome, "/someDir/someInnerDir/someFile");
+        Path file = new Path(igfsHome, "/someDir/someInnerDir/someFile");
 
         if (createBufSize == -1)
             createBufSize = fs.getServerDefaults().getFileBufferSize();

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopDualAbstractSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopDualAbstractSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopDualAbstractSelfTest.java
index b21f022..22c144f 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopDualAbstractSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopDualAbstractSelfTest.java
@@ -93,10 +93,10 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
     protected static byte[] chunk;
 
     /** Primary IGFS. */
-    protected static IgfsImpl ggfs;
+    protected static IgfsImpl igfs;
 
     /** Secondary IGFS. */
-    protected static IgfsImpl ggfsSecondary;
+    protected static IgfsImpl igfsSecondary;
 
     /** IGFS mode. */
     protected final IgfsMode mode;
@@ -115,26 +115,26 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
      * Start grid with IGFS.
      *
      * @param gridName Grid name.
-     * @param ggfsName IGFS name
+     * @param igfsName IGFS name
      * @param mode IGFS mode.
      * @param secondaryFs Secondary file system (optional).
      * @param restCfg Rest configuration string (optional).
      * @return Started grid instance.
      * @throws Exception If failed.
      */
-    protected Ignite startGridWithGgfs(String gridName, String ggfsName, 
IgfsMode mode,
+    protected Ignite startGridWithIgfs(String gridName, String igfsName, 
IgfsMode mode,
         @Nullable Igfs secondaryFs, @Nullable Map<String, String> restCfg) 
throws Exception {
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
-
-        ggfsCfg.setDataCacheName("dataCache");
-        ggfsCfg.setMetaCacheName("metaCache");
-        ggfsCfg.setName(ggfsName);
-        ggfsCfg.setBlockSize(IGFS_BLOCK_SIZE);
-        ggfsCfg.setDefaultMode(mode);
-        ggfsCfg.setIpcEndpointConfiguration(restCfg);
-        ggfsCfg.setSecondaryFileSystem(secondaryFs);
-        ggfsCfg.setPrefetchBlocks(PREFETCH_BLOCKS);
-        ggfsCfg.setSequentialReadsBeforePrefetch(SEQ_READS_BEFORE_PREFETCH);
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
+
+        igfsCfg.setDataCacheName("dataCache");
+        igfsCfg.setMetaCacheName("metaCache");
+        igfsCfg.setName(igfsName);
+        igfsCfg.setBlockSize(IGFS_BLOCK_SIZE);
+        igfsCfg.setDefaultMode(mode);
+        igfsCfg.setIpcEndpointConfiguration(restCfg);
+        igfsCfg.setSecondaryFileSystem(secondaryFs);
+        igfsCfg.setPrefetchBlocks(PREFETCH_BLOCKS);
+        igfsCfg.setSequentialReadsBeforePrefetch(SEQ_READS_BEFORE_PREFETCH);
 
         CacheConfiguration dataCacheCfg = defaultCacheConfiguration();
 
@@ -166,7 +166,7 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(dataCacheCfg, metaCacheCfg);
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setLocalHost("127.0.0.1");
         cfg.setConnectorConfiguration(null);
@@ -181,20 +181,20 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
         for (int i = 0; i < chunk.length; i++)
             chunk[i] = (byte)i;
 
-        Ignite igniteSecondary = startGridWithGgfs("grid-secondary", 
"igfs-secondary", PRIMARY, null, SECONDARY_REST_CFG);
+        Ignite igniteSecondary = startGridWithIgfs("grid-secondary", 
"igfs-secondary", PRIMARY, null, SECONDARY_REST_CFG);
 
         Igfs hadoopFs = new IgfsHadoopFileSystemWrapper(SECONDARY_URI, 
SECONDARY_CFG);
 
-        Ignite ignite = startGridWithGgfs("grid", "igfs", mode, hadoopFs, 
PRIMARY_REST_CFG);
+        Ignite ignite = startGridWithIgfs("grid", "igfs", mode, hadoopFs, 
PRIMARY_REST_CFG);
 
-        ggfsSecondary = (IgfsImpl) 
igniteSecondary.fileSystem("igfs-secondary");
-        ggfs = (IgfsImpl) ignite.fileSystem("igfs");
+        igfsSecondary = (IgfsImpl) 
igniteSecondary.fileSystem("igfs-secondary");
+        igfs = (IgfsImpl) ignite.fileSystem("igfs");
     }
 
     /** {@inheritDoc} */
     @Override protected void afterTest() throws Exception {
-        clear(ggfs);
-        clear(ggfsSecondary);
+        clear(igfs);
+        clear(igfsSecondary);
     }
 
     /** {@inheritDoc} */
@@ -218,12 +218,12 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
      * @throws Exception IF failed.
      */
     public void testOpenPrefetchOverride() throws Exception {
-        create(ggfsSecondary, paths(DIR, SUBDIR), paths(FILE));
+        create(igfsSecondary, paths(DIR, SUBDIR), paths(FILE));
 
         // Write enough data to the secondary file system.
         final int blockSize = IGFS_BLOCK_SIZE;
 
-        IgfsOutputStream out = ggfsSecondary.append(FILE, false);
+        IgfsOutputStream out = igfsSecondary.append(FILE, false);
 
         int totalWritten = 0;
 
@@ -235,7 +235,7 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
 
         out.close();
 
-        awaitFileClose(ggfsSecondary, FILE);
+        awaitFileClose(igfsSecondary, FILE);
 
         // Instantiate file system with overridden "seq reads before prefetch" 
property.
         Configuration cfg = new Configuration();
@@ -261,14 +261,14 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
         fsIn.readFully(0, readBuf, 0, readBuf.length);
 
         // Wait for a while for prefetch to finish (if any).
-        IgfsMetaManager meta = ggfs.context().meta();
+        IgfsMetaManager meta = igfs.context().meta();
 
         IgfsFileInfo info = meta.info(meta.fileId(FILE));
 
         IgfsBlockKey key = new IgfsBlockKey(info.id(), info.affinityKey(), 
info.evictExclude(), 2);
 
-        GridCache<IgfsBlockKey, byte[]> dataCache = 
ggfs.context().kernalContext().cache().cache(
-            ggfs.configuration().getDataCacheName());
+        GridCache<IgfsBlockKey, byte[]> dataCache = 
igfs.context().kernalContext().cache().cache(
+            igfs.configuration().getDataCacheName());
 
         for (int i = 0; i < 10; i++) {
             if (dataCache.containsKey(key))
@@ -280,12 +280,12 @@ public abstract class IgfsHadoopDualAbstractSelfTest 
extends IgfsCommonAbstractT
         fsIn.close();
 
         // Remove the file from the secondary file system.
-        ggfsSecondary.delete(FILE, false);
+        igfsSecondary.delete(FILE, false);
 
         // Try reading the third block. Should fail.
         GridTestUtils.assertThrows(log, new Callable<Object>() {
             @Override public Object call() throws Exception {
-                IgfsInputStream in0 = ggfs.open(FILE);
+                IgfsInputStream in0 = igfs.open(FILE);
 
                 in0.seek(blockSize * 2);
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemAbstractSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemAbstractSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemAbstractSelfTest.java
index c124136..b3eef32 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemAbstractSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemAbstractSelfTest.java
@@ -65,7 +65,7 @@ public abstract class IgfsHadoopFileSystemAbstractSelfTest 
extends IgfsCommonAbs
     private static final String PRIMARY_URI = "igfs://" + PRIMARY_AUTHORITY + 
"/";
 
     /** Secondary file system authority. */
-    private static final String SECONDARY_AUTHORITY = 
"ggfs_secondary:grid_secondary@127.0.0.1:11500";
+    private static final String SECONDARY_AUTHORITY = 
"igfs_secondary:grid_secondary@127.0.0.1:11500";
 
     /** Secondary file systme URI. */
     private static final String SECONDARY_URI = "igfs://" + 
SECONDARY_AUTHORITY + "/";
@@ -172,14 +172,14 @@ public abstract class 
IgfsHadoopFileSystemAbstractSelfTest extends IgfsCommonAbs
     private void startNodes() throws Exception {
         if (mode != PRIMARY) {
             // Start secondary IGFS.
-            IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+            IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-            ggfsCfg.setDataCacheName("partitioned");
-            ggfsCfg.setMetaCacheName("replicated");
-            ggfsCfg.setName("ggfs_secondary");
-            ggfsCfg.setIpcEndpointConfiguration(SECONDARY_ENDPOINT_CFG);
-            ggfsCfg.setBlockSize(512 * 1024);
-            ggfsCfg.setPrefetchBlocks(1);
+            igfsCfg.setDataCacheName("partitioned");
+            igfsCfg.setMetaCacheName("replicated");
+            igfsCfg.setName("igfs_secondary");
+            igfsCfg.setIpcEndpointConfiguration(SECONDARY_ENDPOINT_CFG);
+            igfsCfg.setBlockSize(512 * 1024);
+            igfsCfg.setPrefetchBlocks(1);
 
             CacheConfiguration cacheCfg = defaultCacheConfiguration();
 
@@ -210,7 +210,7 @@ public abstract class IgfsHadoopFileSystemAbstractSelfTest 
extends IgfsCommonAbs
 
             cfg.setDiscoverySpi(discoSpi);
             cfg.setCacheConfiguration(metaCacheCfg, cacheCfg);
-            cfg.setIgfsConfiguration(ggfsCfg);
+            cfg.setIgfsConfiguration(igfsCfg);
             cfg.setIncludeEventTypes(EVT_TASK_FAILED, EVT_TASK_FINISHED, 
EVT_JOB_MAPPED);
 
             cfg.setCommunicationSpi(communicationSpi());
@@ -276,7 +276,7 @@ public abstract class IgfsHadoopFileSystemAbstractSelfTest 
extends IgfsCommonAbs
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(cacheConfiguration(gridName));
-        cfg.setIgfsConfiguration(ggfsConfiguration(gridName));
+        cfg.setIgfsConfiguration(igfsConfiguration(gridName));
         cfg.setIncludeEventTypes(EVT_TASK_FAILED, EVT_TASK_FINISHED, 
EVT_JOB_MAPPED);
         cfg.setCommunicationSpi(communicationSpi());
 
@@ -318,7 +318,7 @@ public abstract class IgfsHadoopFileSystemAbstractSelfTest 
extends IgfsCommonAbs
      * @param gridName Grid name.
      * @return IGFS configuration.
      */
-    protected IgfsConfiguration ggfsConfiguration(String gridName) throws 
IgniteCheckedException {
+    protected IgfsConfiguration igfsConfiguration(String gridName) throws 
IgniteCheckedException {
         IgfsConfiguration cfg = new IgfsConfiguration();
 
         cfg.setDataCacheName("partitioned");
@@ -1306,10 +1306,10 @@ public abstract class 
IgfsHadoopFileSystemAbstractSelfTest extends IgfsCommonAbs
      * @throws Exception If failed.
      */
     public void testListStatus() throws Exception {
-        Path ggfsHome = new Path(PRIMARY_URI);
+        Path igfsHome = new Path(PRIMARY_URI);
 
         // Test listing of an empty directory.
-        Path dir = new Path(ggfsHome, "dir");
+        Path dir = new Path(igfsHome, "dir");
 
         assert fs.mkdirs(dir);
 
@@ -1483,9 +1483,9 @@ public abstract class 
IgfsHadoopFileSystemAbstractSelfTest extends IgfsCommonAbs
 
     /** @throws Exception If failed. */
     public void testGetFileBlockLocations() throws Exception {
-        Path ggfsHome = new Path(PRIMARY_URI);
+        Path igfsHome = new Path(PRIMARY_URI);
 
-        Path file = new Path(ggfsHome, "someFile");
+        Path file = new Path(igfsHome, "someFile");
 
         try (OutputStream out = new BufferedOutputStream(fs.create(file, true, 
1024 * 1024))) {
             byte[] data = new byte[128 * 1024];
@@ -1528,9 +1528,9 @@ public abstract class 
IgfsHadoopFileSystemAbstractSelfTest extends IgfsCommonAbs
     public void testZeroReplicationFactor() throws Exception {
         // This test doesn't make sense for any mode except of PRIMARY.
         if (mode == PRIMARY) {
-            Path ggfsHome = new Path(PRIMARY_URI);
+            Path igfsHome = new Path(PRIMARY_URI);
 
-            Path file = new Path(ggfsHome, "someFile");
+            Path file = new Path(igfsHome, "someFile");
 
             try (FSDataOutputStream out = fs.create(file, (short)0)) {
                 out.write(new byte[1024 * 1024]);
@@ -2059,9 +2059,9 @@ public abstract class 
IgfsHadoopFileSystemAbstractSelfTest extends IgfsCommonAbs
      */
     private void checkConsistency(int createBufSize, int writeCntsInCreate, 
int openAfterCreateBufSize,
         int appendBufSize, int writeCntsInAppend, int openAfterAppendBufSize) 
throws Exception {
-        final Path ggfsHome = new Path(PRIMARY_URI);
+        final Path igfsHome = new Path(PRIMARY_URI);
 
-        Path file = new Path(ggfsHome, "/someDir/someInnerDir/someFile");
+        Path file = new Path(igfsHome, "/someDir/someInnerDir/someFile");
 
         FSDataOutputStream os = fs.create(file, true, createBufSize);
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemClientSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemClientSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemClientSelfTest.java
index b44c2d8..599fd1d 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemClientSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemClientSelfTest.java
@@ -66,19 +66,19 @@ public class IgfsHadoopFileSystemClientSelfTest extends 
IgfsCommonAbstractTest {
 
         cfg.setDiscoverySpi(discoSpi);
 
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName("igfs");
-        ggfsCfg.setBlockSize(512 * 1024);
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName("igfs");
+        igfsCfg.setBlockSize(512 * 1024);
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "tcp");
             put("port", String.valueOf(DFLT_IPC_PORT));
         }});
 
         cfg.setCacheConfiguration(cacheConfiguration());
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         return cfg;
     }
@@ -133,18 +133,18 @@ public class IgfsHadoopFileSystemClientSelfTest extends 
IgfsCommonAbstractTest {
 
             IgfsHadoopStreamDelegate delegate = client.create(path, true, 
false, 1, 1024, null);
 
-            final IgfsHadoopOutputStream ggfsOut = new 
IgfsHadoopOutputStream(delegate, LOG,
+            final IgfsHadoopOutputStream igfsOut = new 
IgfsHadoopOutputStream(delegate, LOG,
                 IgfsLogger.disabledLogger(), 0);
 
             // This call should return fine as exception is thrown for the 
first time.
-            ggfsOut.write(data);
+            igfsOut.write(data);
 
             U.sleep(500);
 
             // This call should throw an IO exception.
             GridTestUtils.assertThrows(null, new Callable<Object>() {
                 @Override public Object call() throws Exception {
-                    ggfsOut.write(data);
+                    igfsOut.write(data);
 
                     return null;
                 }
@@ -163,17 +163,17 @@ public class IgfsHadoopFileSystemClientSelfTest extends 
IgfsCommonAbstractTest {
      */
     @SuppressWarnings("ConstantConditions")
     private void switchHandlerErrorFlag(boolean flag) throws Exception {
-        IgfsProcessorAdapter ggfsProc = 
((IgniteKernal)grid(0)).context().igfs();
+        IgfsProcessorAdapter igfsProc = 
((IgniteKernal)grid(0)).context().igfs();
 
-        Map<String, IgfsContext> ggfsMap = getField(ggfsProc, "ggfsCache");
+        Map<String, IgfsContext> igfsMap = getField(igfsProc, "igfsCache");
 
-        IgfsServerManager srvMgr = F.first(ggfsMap.values()).server();
+        IgfsServerManager srvMgr = F.first(igfsMap.values()).server();
 
         Collection<IgfsServer> srvrs = getField(srvMgr, "srvrs");
 
-        IgfsServerHandler ggfsHnd = getField(F.first(srvrs), "hnd");
+        IgfsServerHandler igfsHnd = getField(F.first(srvrs), "hnd");
 
-        Field field = ggfsHnd.getClass().getDeclaredField("errWrite");
+        Field field = igfsHnd.getClass().getDeclaredField("errWrite");
 
         field.setAccessible(true);
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemHandshakeSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemHandshakeSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemHandshakeSelfTest.java
index a371dae..137db6d 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemHandshakeSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemHandshakeSelfTest.java
@@ -120,7 +120,7 @@ public class IgfsHadoopFileSystemHandshakeSelfTest extends 
IgfsCommonAbstractTes
      *
      * @throws Exception If failed.
      */
-    public void testHandshakeDefaultGgfs() throws Exception {
+    public void testHandshakeDefaultIgfs() throws Exception {
         startUp(false, true);
 
         checkInvalid(IGFS_NAME + ":" + GRID_NAME + "@");
@@ -145,7 +145,7 @@ public class IgfsHadoopFileSystemHandshakeSelfTest extends 
IgfsCommonAbstractTes
      *
      * @throws Exception If failed.
      */
-    public void testHandshakeDefaultGridDefaultGgfs() throws Exception {
+    public void testHandshakeDefaultGridDefaultIgfs() throws Exception {
         startUp(true, true);
 
         checkInvalid(IGFS_NAME + ":" + GRID_NAME + "@");
@@ -169,26 +169,26 @@ public class IgfsHadoopFileSystemHandshakeSelfTest 
extends IgfsCommonAbstractTes
      * Perform startup.
      *
      * @param dfltGridName Default Grid name.
-     * @param dfltGgfsName Default IGFS name.
+     * @param dfltIgfsName Default IGFS name.
      * @throws Exception If failed.
      */
-    private void startUp(boolean dfltGridName, boolean dfltGgfsName) throws 
Exception {
-        Ignite ignite = G.start(gridConfiguration(dfltGridName, dfltGgfsName));
+    private void startUp(boolean dfltGridName, boolean dfltIgfsName) throws 
Exception {
+        Ignite ignite = G.start(gridConfiguration(dfltGridName, dfltIgfsName));
 
-        IgniteFs ggfs = ignite.fileSystem(dfltGgfsName ? null : IGFS_NAME);
+        IgniteFs igfs = ignite.fileSystem(dfltIgfsName ? null : IGFS_NAME);
 
-        ggfs.mkdirs(PATH);
+        igfs.mkdirs(PATH);
     }
 
     /**
      * Create Grid configuration.
      *
      * @param dfltGridName Default Grid name.
-     * @param dfltGgfsName Default IGFS name.
+     * @param dfltIgfsName Default IGFS name.
      * @return Grid configuration.
      * @throws Exception If failed.
      */
-    private IgniteConfiguration gridConfiguration(boolean dfltGridName, 
boolean dfltGgfsName) throws Exception {
+    private IgniteConfiguration gridConfiguration(boolean dfltGridName, 
boolean dfltIgfsName) throws Exception {
         IgniteConfiguration cfg = super.getConfiguration(dfltGridName ? null : 
GRID_NAME);
 
         cfg.setLocalHost("127.0.0.1");
@@ -227,22 +227,22 @@ public class IgfsHadoopFileSystemHandshakeSelfTest 
extends IgfsCommonAbstractTes
 
         cfg.setCacheConfiguration(metaCacheCfg, dataCacheCfg);
 
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName(dfltGgfsName ? null : IGFS_NAME);
-        ggfsCfg.setPrefetchBlocks(1);
-        ggfsCfg.setDefaultMode(PRIMARY);
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName(dfltIgfsName ? null : IGFS_NAME);
+        igfsCfg.setPrefetchBlocks(1);
+        igfsCfg.setDefaultMode(PRIMARY);
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "tcp");
             put("port", String.valueOf(DFLT_IPC_PORT));
         }});
 
-        ggfsCfg.setManagementPort(-1);
-        ggfsCfg.setBlockSize(512 * 1024);
+        igfsCfg.setManagementPort(-1);
+        igfsCfg.setBlockSize(512 * 1024);
 
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         return cfg;
     }

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemIpcCacheSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemIpcCacheSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemIpcCacheSelfTest.java
index 5bd47b4..a6357f8 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemIpcCacheSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemIpcCacheSelfTest.java
@@ -65,21 +65,21 @@ public class IgfsHadoopFileSystemIpcCacheSelfTest extends 
IgfsCommonAbstractTest
 
         cfg.setDiscoverySpi(discoSpi);
 
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName("igfs");
-        ggfsCfg.setManagementPort(IgfsConfiguration.DFLT_MGMT_PORT + cnt);
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName("igfs");
+        igfsCfg.setManagementPort(IgfsConfiguration.DFLT_MGMT_PORT + cnt);
 
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "shmem");
             put("port", 
String.valueOf(IpcSharedMemoryServerEndpoint.DFLT_IPC_PORT + cnt));
         }});
 
-        ggfsCfg.setBlockSize(512 * 1024); // Together with group blocks mapper 
will yield 64M per node groups.
+        igfsCfg.setBlockSize(512 * 1024); // Together with group blocks mapper 
will yield 64M per node groups.
 
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setCacheConfiguration(cacheConfiguration());
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemLoggerStateSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemLoggerStateSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemLoggerStateSelfTest.java
index e282019..cbe83f0 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemLoggerStateSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemLoggerStateSelfTest.java
@@ -45,7 +45,7 @@ import static 
org.apache.ignite.igfs.hadoop.IgfsHadoopParameters.*;
  */
 public class IgfsHadoopFileSystemLoggerStateSelfTest extends 
IgfsCommonAbstractTest {
     /** IGFS. */
-    private IgfsEx ggfs;
+    private IgfsEx igfs;
 
     /** File system. */
     private FileSystem fs;
@@ -60,7 +60,7 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest extends 
IgfsCommonAbstractT
     @Override protected void afterTest() throws Exception {
         U.closeQuiet(fs);
 
-        ggfs = null;
+        igfs = null;
         fs = null;
 
         G.stopAll(true);
@@ -75,14 +75,14 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
      * @throws Exception If failed.
      */
     private void startUp() throws Exception {
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
-
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName("igfs");
-        ggfsCfg.setBlockSize(512 * 1024);
-        ggfsCfg.setDefaultMode(PRIMARY);
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
+
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName("igfs");
+        igfsCfg.setBlockSize(512 * 1024);
+        igfsCfg.setDefaultMode(PRIMARY);
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "tcp");
             put("port", "10500");
         }});
@@ -116,16 +116,16 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(metaCacheCfg, cacheCfg);
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setLocalHost("127.0.0.1");
         cfg.setConnectorConfiguration(null);
 
         Ignite g = G.start(cfg);
 
-        ggfs = (IgfsEx)g.fileSystem("igfs");
+        igfs = (IgfsEx)g.fileSystem("igfs");
 
-        ggfs.globalSampling(sampling);
+        igfs.globalSampling(sampling);
 
         fs = fileSystem();
     }
@@ -222,7 +222,7 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         fs.close();
 
         // "Not set" => true transition.
-        ggfs.globalSampling(true);
+        igfs.globalSampling(true);
 
         fs = fileSystem();
 
@@ -231,14 +231,14 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         fs.close();
 
         // True => "not set" transition.
-        ggfs.globalSampling(null);
+        igfs.globalSampling(null);
 
         fs = fileSystem();
 
         assert !logEnabled();
 
         // "Not-set" => false transition.
-        ggfs.globalSampling(false);
+        igfs.globalSampling(false);
 
         fs = fileSystem();
 
@@ -247,7 +247,7 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         fs.close();
 
         // False => "not=set" transition.
-        ggfs.globalSampling(null);
+        igfs.globalSampling(null);
 
         fs = fileSystem();
 
@@ -256,8 +256,8 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         fs.close();
 
         // True => false transition.
-        ggfs.globalSampling(true);
-        ggfs.globalSampling(false);
+        igfs.globalSampling(true);
+        igfs.globalSampling(false);
 
         fs = fileSystem();
 
@@ -266,7 +266,7 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         fs.close();
 
         // False => true transition.
-        ggfs.globalSampling(true);
+        igfs.globalSampling(true);
 
         fs = fileSystem();
 
@@ -283,7 +283,7 @@ public class IgfsHadoopFileSystemLoggerStateSelfTest 
extends IgfsCommonAbstractT
         startUp();
 
         assertEquals(Paths.get(U.getIgniteHome()).normalize().toString(),
-            ggfs.clientLogDirectory());
+            igfs.clientLogDirectory());
     }
 
     /**

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemSecondaryModeSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemSecondaryModeSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemSecondaryModeSelfTest.java
index bdce59e..2e22d93 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemSecondaryModeSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsHadoopFileSystemSecondaryModeSelfTest.java
@@ -83,21 +83,21 @@ public class IgfsHadoopFileSystemSecondaryModeSelfTest 
extends IgfsCommonAbstrac
     private void startUp() throws Exception {
         startUpSecondary();
 
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
-
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName("igfs");
-        ggfsCfg.setBlockSize(512 * 1024);
-        ggfsCfg.setDefaultMode(mode);
-        ggfsCfg.setPathModes(pathModes);
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
+
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName("igfs");
+        igfsCfg.setBlockSize(512 * 1024);
+        igfsCfg.setDefaultMode(mode);
+        igfsCfg.setPathModes(pathModes);
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "tcp");
             put("port", "10500");
         }});
 
-        ggfsCfg.setManagementPort(-1);
-        ggfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
+        igfsCfg.setManagementPort(-1);
+        igfsCfg.setSecondaryFileSystem(new IgfsHadoopFileSystemWrapper(
             "igfs://igfs-secondary:igfs-grid-secondary@127.0.0.1:11500/",
             
"modules/core/src/test/config/hadoop/core-site-loopback-secondary.xml"));
 
@@ -130,7 +130,7 @@ public class IgfsHadoopFileSystemSecondaryModeSelfTest 
extends IgfsCommonAbstrac
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(metaCacheCfg, cacheCfg);
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setLocalHost("127.0.0.1");
 
@@ -151,14 +151,14 @@ public class IgfsHadoopFileSystemSecondaryModeSelfTest 
extends IgfsCommonAbstrac
      * @throws Exception If failed.
      */
     private void startUpSecondary() throws Exception {
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
-
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("replicated");
-        ggfsCfg.setName("igfs-secondary");
-        ggfsCfg.setBlockSize(512 * 1024);
-        ggfsCfg.setDefaultMode(PRIMARY);
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
+
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("replicated");
+        igfsCfg.setName("igfs-secondary");
+        igfsCfg.setBlockSize(512 * 1024);
+        igfsCfg.setDefaultMode(PRIMARY);
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "tcp");
             put("port", "11500");
         }});
@@ -192,7 +192,7 @@ public class IgfsHadoopFileSystemSecondaryModeSelfTest 
extends IgfsCommonAbstrac
 
         cfg.setDiscoverySpi(discoSpi);
         cfg.setCacheConfiguration(metaCacheCfg, cacheCfg);
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setLocalHost("127.0.0.1");
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/fd1f854b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsNearOnlyMultiNodeSelfTest.java
----------------------------------------------------------------------
diff --git 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsNearOnlyMultiNodeSelfTest.java
 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsNearOnlyMultiNodeSelfTest.java
index c8cf2d7..d27d93d 100644
--- 
a/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsNearOnlyMultiNodeSelfTest.java
+++ 
b/modules/hadoop/src/test/java/org/apache/ignite/igfs/IgfsNearOnlyMultiNodeSelfTest.java
@@ -75,20 +75,20 @@ public class IgfsNearOnlyMultiNodeSelfTest extends 
GridCommonAbstractTest {
 
         cfg.setDiscoverySpi(discoSpi);
 
-        IgfsConfiguration ggfsCfg = new IgfsConfiguration();
+        IgfsConfiguration igfsCfg = new IgfsConfiguration();
 
-        ggfsCfg.setDataCacheName("partitioned");
-        ggfsCfg.setMetaCacheName("partitioned");
-        ggfsCfg.setName("igfs");
+        igfsCfg.setDataCacheName("partitioned");
+        igfsCfg.setMetaCacheName("partitioned");
+        igfsCfg.setName("igfs");
 
-        ggfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
+        igfsCfg.setIpcEndpointConfiguration(new HashMap<String, String>() {{
             put("type", "shmem");
             put("port", 
String.valueOf(IpcSharedMemoryServerEndpoint.DFLT_IPC_PORT + cnt));
         }});
 
-        ggfsCfg.setBlockSize(512 * 1024); // Together with group blocks mapper 
will yield 64M per node groups.
+        igfsCfg.setBlockSize(512 * 1024); // Together with group blocks mapper 
will yield 64M per node groups.
 
-        cfg.setIgfsConfiguration(ggfsCfg);
+        cfg.setIgfsConfiguration(igfsCfg);
 
         cfg.setCacheConfiguration(cacheConfiguration(gridName));
 

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