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dlmarion pushed a commit to branch elasticity
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The following commit(s) were added to refs/heads/elasticity by this push:
new 0dc5f771c0 Fix MemoryStarvedMajCIT (#4041)
0dc5f771c0 is described below
commit 0dc5f771c0df1ad35f996679e19f900830e0edca
Author: Dave Marion <dlmar...@apache.org>
AuthorDate: Fri Dec 8 15:23:48 2023 -0500
Fix MemoryStarvedMajCIT (#4041)
Modify IT to use methods on a modified Compactor class to
consume and free memory instead of using a Scanner with an
iterator. The scanner approach no longer works because majc's
no longer occur in the tablet server.
Fixes #4037
---
.../org/apache/accumulo/compactor/Compactor.java | 7 +-
.../test/functional/MemoryConsumingCompactor.java | 96 ++++++++++++++++++++++
.../test/functional/MemoryConsumingIterator.java | 12 ++-
.../test/functional/MemoryStarvedMajCIT.java | 72 ++++++++++------
4 files changed, 158 insertions(+), 29 deletions(-)
diff --git
a/server/compactor/src/main/java/org/apache/accumulo/compactor/Compactor.java
b/server/compactor/src/main/java/org/apache/accumulo/compactor/Compactor.java
index 9e3c81504c..11a91e09bc 100644
---
a/server/compactor/src/main/java/org/apache/accumulo/compactor/Compactor.java
+++
b/server/compactor/src/main/java/org/apache/accumulo/compactor/Compactor.java
@@ -304,6 +304,10 @@ public class Compactor extends AbstractServer implements
MetricsProducer, Compac
}
}
+ protected CompactorService.Iface getCompactorThriftHandlerInterface() {
+ return this;
+ }
+
/**
* Start this Compactors thrift service to handle incoming client requests
*
@@ -313,7 +317,8 @@ public class Compactor extends AbstractServer implements
MetricsProducer, Compac
protected ServerAddress startCompactorClientService() throws
UnknownHostException {
ClientServiceHandler clientHandler = new
ClientServiceHandler(getContext());
- var processor = ThriftProcessorTypes.getCompactorTProcessor(clientHandler,
this, getContext());
+ var processor = ThriftProcessorTypes.getCompactorTProcessor(clientHandler,
+ getCompactorThriftHandlerInterface(), getContext());
Property maxMessageSizeProperty =
(getConfiguration().get(Property.COMPACTOR_MAX_MESSAGE_SIZE) != null
? Property.COMPACTOR_MAX_MESSAGE_SIZE :
Property.GENERAL_MAX_MESSAGE_SIZE);
diff --git
a/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingCompactor.java
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingCompactor.java
new file mode 100644
index 0000000000..d725730245
--- /dev/null
+++
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingCompactor.java
@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.accumulo.test.functional;
+
+import java.io.IOException;
+import java.util.Map;
+
+import org.apache.accumulo.compactor.Compactor;
+import org.apache.accumulo.core.cli.ConfigOpts;
+import org.apache.accumulo.core.clientImpl.thrift.TInfo;
+import org.apache.accumulo.core.clientImpl.thrift.ThriftSecurityException;
+import org.apache.accumulo.core.compaction.thrift.CompactorService;
+import org.apache.accumulo.core.data.Key;
+import org.apache.accumulo.core.data.Value;
+import org.apache.accumulo.core.iterators.SortedKeyValueIterator;
+import org.apache.accumulo.core.securityImpl.thrift.TCredentials;
+import org.apache.accumulo.core.tabletserver.thrift.TExternalCompactionJob;
+import org.apache.accumulo.server.ServerContext;
+import org.apache.accumulo.server.iterators.SystemIteratorEnvironment;
+import org.apache.thrift.TException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class MemoryConsumingCompactor extends Compactor implements
CompactorService.Iface {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(MemoryConsumingCompactor.class);
+
+ MemoryConsumingCompactor(ConfigOpts opts, String[] args) {
+ super(opts, args);
+ }
+
+ @Override
+ protected CompactorService.Iface getCompactorThriftHandlerInterface() {
+ return this;
+ }
+
+ @Override
+ public void cancel(TInfo tinfo, TCredentials credentials, String
externalCompactionId)
+ throws TException {
+ // Use the cancel Thrift RPC to free the consumed memory
+ LOG.warn("cancel called, freeing memory");
+ MemoryConsumingIterator.freeBuffers();
+ }
+
+ @Override
+ public TExternalCompactionJob getRunningCompaction(TInfo tinfo, TCredentials
credentials)
+ throws ThriftSecurityException, TException {
+ // Use the getRunningCompaction Thrift RPC to consume the memory
+ LOG.warn("getRunningCompaction called, consuming memory");
+ try {
+ MemoryConsumingIterator iter = new MemoryConsumingIterator();
+ iter.init((SortedKeyValueIterator<Key,Value>) null, Map.of(),
+ new SystemIteratorEnvironment() {
+
+ @Override
+ public ServerContext getServerContext() {
+ return getContext();
+ }
+
+ @Override
+ public SortedKeyValueIterator<Key,Value>
+ getTopLevelIterator(SortedKeyValueIterator<Key,Value> iter) {
+ return null;
+ }
+
+ });
+ iter.consume();
+ } catch (IOException e) {
+ throw new TException("Error consuming memory", e);
+ }
+ return new TExternalCompactionJob();
+ }
+
+ public static void main(String[] args) throws Exception {
+ try (var compactor = new MemoryConsumingCompactor(new ConfigOpts(), args))
{
+ compactor.runServer();
+ }
+ }
+
+}
diff --git
a/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingIterator.java
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingIterator.java
index 2b23fb1cff..fd3f911250 100644
---
a/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingIterator.java
+++
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryConsumingIterator.java
@@ -61,10 +61,7 @@ public class MemoryConsumingIterator extends
WrappingIterator {
return (int) amountToConsume;
}
- @Override
- public void seek(Range range, Collection<ByteSequence> columnFamilies,
boolean inclusive)
- throws IOException {
- LOG.info("seek called");
+ public void consume() throws IOException {
while (!this.isRunningLowOnMemory()) {
int amountToConsume = getAmountToConsume();
if (amountToConsume > 0) {
@@ -83,6 +80,13 @@ public class MemoryConsumingIterator extends
WrappingIterator {
}
}
LOG.info("Running low on memory == true");
+ }
+
+ @Override
+ public void seek(Range range, Collection<ByteSequence> columnFamilies,
boolean inclusive)
+ throws IOException {
+ LOG.info("seek called");
+ consume();
super.seek(range, columnFamilies, inclusive);
}
diff --git
a/test/src/main/java/org/apache/accumulo/test/functional/MemoryStarvedMajCIT.java
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryStarvedMajCIT.java
index 5c9e2cd96f..9ec1094ea7 100644
---
a/test/src/main/java/org/apache/accumulo/test/functional/MemoryStarvedMajCIT.java
+++
b/test/src/main/java/org/apache/accumulo/test/functional/MemoryStarvedMajCIT.java
@@ -30,36 +30,41 @@ import java.util.concurrent.atomic.DoubleAdder;
import org.apache.accumulo.core.client.Accumulo;
import org.apache.accumulo.core.client.AccumuloClient;
-import org.apache.accumulo.core.client.Scanner;
import org.apache.accumulo.core.client.admin.CompactionConfig;
import org.apache.accumulo.core.client.admin.TableOperations;
+import org.apache.accumulo.core.clientImpl.ClientContext;
import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.core.metrics.MetricsProducer;
+import org.apache.accumulo.core.util.compaction.ExternalCompactionUtil;
import org.apache.accumulo.harness.MiniClusterConfigurationCallback;
import org.apache.accumulo.harness.SharedMiniClusterBase;
-import org.apache.accumulo.minicluster.MemoryUnit;
import org.apache.accumulo.minicluster.ServerType;
import org.apache.accumulo.miniclusterImpl.MiniAccumuloConfigImpl;
import org.apache.accumulo.test.metrics.TestStatsDRegistryFactory;
import org.apache.accumulo.test.metrics.TestStatsDSink;
import org.apache.accumulo.test.metrics.TestStatsDSink.Metric;
+import org.apache.accumulo.test.util.Wait;
import org.apache.hadoop.conf.Configuration;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.net.HostAndPort;
-@Disabled // ELASTICITY_TODO
public class MemoryStarvedMajCIT extends SharedMiniClusterBase {
+ private static final Logger LOG =
LoggerFactory.getLogger(MemoryStarvedMajCIT.class);
+
public static class MemoryStarvedITConfiguration implements
MiniClusterConfigurationCallback {
@Override
public void configureMiniCluster(MiniAccumuloConfigImpl cfg, Configuration
coreSite) {
cfg.getClusterServerConfiguration().setNumDefaultTabletServers(1);
- cfg.setMemory(ServerType.TABLET_SERVER, 256, MemoryUnit.MEGABYTE);
- // Configure the LowMemoryDetector in the TabletServer
+ cfg.getClusterServerConfiguration().setNumDefaultScanServers(0);
+ cfg.getClusterServerConfiguration().setNumDefaultCompactors(1);
cfg.setProperty(Property.GENERAL_LOW_MEM_DETECTOR_INTERVAL, "5s");
cfg.setProperty(Property.GENERAL_LOW_MEM_DETECTOR_THRESHOLD,
Double.toString(MemoryStarvedScanIT.FREE_MEMORY_THRESHOLD));
@@ -120,16 +125,31 @@ public class MemoryStarvedMajCIT extends
SharedMiniClusterBase {
@Test
public void testMajCPauses() throws Exception {
+
String table = getUniqueNames(1)[0];
try (AccumuloClient client =
Accumulo.newClient().from(getClientProps()).build()) {
+ ClientContext ctx = (ClientContext) client;
+
+ // Stop the normal compactors and start the version that will consume
+ // and free memory when we need it to
+ getCluster().getClusterControl().stopAllServers(ServerType.COMPACTOR);
+
+ getCluster().getClusterControl().start(ServerType.COMPACTOR, null, 1,
+ MemoryConsumingCompactor.class);
+ Wait.waitFor(() -> ExternalCompactionUtil.getCompactorAddrs(ctx).size()
== 4, 60_000);
+ Wait.waitFor(
+ () ->
ExternalCompactionUtil.getCompactorAddrs(ctx).get("user_small").size() == 1,
+ 60_000);
+
+ Map<String,List<HostAndPort>> groupedCompactors =
+ ExternalCompactionUtil.getCompactorAddrs(ctx);
+ List<HostAndPort> compactorAddresses =
groupedCompactors.get("user_small");
+ HostAndPort compactorAddr = compactorAddresses.get(0);
+
TableOperations to = client.tableOperations();
to.create(table);
- // Add a small amount of data so that the MemoryConsumingIterator
- // returns true when trying to consume all of the memory.
- ReadWriteIT.ingest(client, 1, 1, 1, 0, table);
-
AtomicReference<Throwable> error = new AtomicReference<>();
Thread compactionThread = new Thread(() -> {
try {
@@ -139,25 +159,29 @@ public class MemoryStarvedMajCIT extends
SharedMiniClusterBase {
}
});
- try (Scanner scanner = client.createScanner(table)) {
+ int paused = MAJC_PAUSED.intValue();
+ assertEquals(0, paused);
- MemoryStarvedScanIT.consumeServerMemory(scanner);
+ // Calling getRunningCompaction on the MemoryConsumingCompactor
+ // will consume the free memory
+ LOG.info("Calling getRunningCompaction on {}", compactorAddr);
+ ExternalCompactionUtil.getRunningCompaction(compactorAddr, ctx);
- int paused = MAJC_PAUSED.intValue();
- assertEquals(0, paused);
+ ReadWriteIT.ingest(client, 100, 100, 100, 0, table);
+ compactionThread.start();
- ReadWriteIT.ingest(client, 100, 100, 100, 0, table);
- compactionThread.start();
+ waitFor(() -> MAJC_PAUSED.intValue() > 0);
- waitFor(() -> MAJC_PAUSED.intValue() > 0);
+ // Calling cancel on the MemoryConsumingCompactor will free
+ // the consumed memory
+ LOG.info("Calling cancel on {}", compactorAddr);
+ ExternalCompactionUtil.cancelCompaction(ctx, compactorAddr, "fakeECID");
- MemoryStarvedScanIT.freeServerMemory(client);
- compactionThread.interrupt();
- compactionThread.join();
- assertNull(error.get());
- assertTrue(client.instanceOperations().getActiveCompactions().stream()
- .anyMatch(ac -> ac.getPausedCount() > 0));
- }
+ compactionThread.interrupt();
+ compactionThread.join();
+ assertNull(error.get());
+ assertTrue(client.instanceOperations().getActiveCompactions().stream()
+ .anyMatch(ac -> ac.getPausedCount() > 0));
}
}
