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https://issues.apache.org/jira/browse/HADOOP-15250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16459127#comment-16459127
]
genericqa commented on HADOOP-15250:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
25s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 23m
59s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 27m
43s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
5s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
11m 18s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
34s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
3s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
45s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 26m
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 26m
52s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 53s{color} | {color:orange} hadoop-common-project/hadoop-common: The patch
generated 4 new + 229 unchanged - 0 fixed = 233 total (was 229) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
9m 6s{color} | {color:green} patch has no errors when building and testing our
client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
56s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
10s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
41s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}117m 41s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:abb62dd |
| JIRA Issue | HADOOP-15250 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12921290/HADOOP-15250.00.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit shadedclient findbugs checkstyle xml |
| uname | Linux f36bc011d84f 4.4.0-121-generic #145-Ubuntu SMP Fri Apr 13
13:47:23 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 9b09555 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_162 |
| findbugs | v3.1.0-RC1 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HADOOP-Build/14539/artifact/out/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HADOOP-Build/14539/testReport/ |
| Max. process+thread count | 1371 (vs. ulimit of 10000) |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/14539/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Split-DNS MultiHomed Server Network Cluster Network IPC Client Bind Addr Wrong
> ------------------------------------------------------------------------------
>
> Key: HADOOP-15250
> URL: https://issues.apache.org/jira/browse/HADOOP-15250
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc, net
> Affects Versions: 2.7.3, 2.9.0, 3.0.0
> Environment: Multihome cluster with split DNS and rDNS lookup of
> localhost returning non-routable IPAddr
> Reporter: Greg Senia
> Priority: Critical
> Attachments: HADOOP-15250.00.patch, HADOOP-15250.patch
>
>
> We run our Hadoop clusters with two networks attached to each node. These
> network are as follows a server network that is firewalled with firewalld
> allowing inbound traffic: only SSH and things like Knox and Hiveserver2 and
> the HTTP YARN RM/ATS and MR History Server. The second network is the cluster
> network on the second network interface this uses Jumbo frames and is open no
> restrictions and allows all cluster traffic to flow between nodes.
>
> To resolve DNS within the Hadoop Cluster we use DNS Views via BIND so if the
> traffic is originating from nodes with cluster networks we return the
> internal DNS record for the nodes. This all works fine with all the
> multi-homing features added to Hadoop 2.x
> Some logic around views:
> a. The internal view is used by cluster machines when performing lookups. So
> hosts on the cluster network should get answers from the internal view in DNS
> b. The external view is used by non-local-cluster machines when performing
> lookups. So hosts not on the cluster network should get answers from the
> external view in DNS
>
> So this brings me to our problem. We created some firewall rules to allow
> inbound traffic from each clusters server network to allow distcp to occur.
> But we noticed a problem almost immediately that when YARN attempted to talk
> to the Remote Cluster it was binding outgoing traffic to the cluster network
> interface which IS NOT routable. So after researching the code we noticed the
> following in NetUtils.java and Client.java
> Basically in Client.java it looks as if it takes whatever the hostname is and
> attempts to bind to whatever the hostname is resolved to. This is not valid
> in a multi-homed network with one routable interface and one non routable
> interface. After reading through the java.net.Socket documentation it is
> valid to perform socket.bind(null) which will allow the OS routing table and
> DNS to send the traffic to the correct interface. I will also attach the
> nework traces and a test patch for 2.7.x and 3.x code base. I have this test
> fix below in my Hadoop Test Cluster.
> Client.java:
>
> |/*|
> | | * Bind the socket to the host specified in the principal name of the|
> | | * client, to ensure Server matching address of the client connection|
> | | * to host name in principal passed.|
> | | */|
> | |InetSocketAddress bindAddr = null;|
> | |if (ticket != null && ticket.hasKerberosCredentials()) {|
> | |KerberosInfo krbInfo =|
> | |remoteId.getProtocol().getAnnotation(KerberosInfo.class);|
> | |if (krbInfo != null) {|
> | |String principal = ticket.getUserName();|
> | |String host = SecurityUtil.getHostFromPrincipal(principal);|
> | |// If host name is a valid local address then bind socket to it|
> | |{color:#FF0000}*InetAddress localAddr =
> NetUtils.getLocalInetAddress(host);*{color}|
> |{color:#FF0000} ** {color}|if (localAddr != null) {|
> | |this.socket.setReuseAddress(true);|
> | |if (LOG.isDebugEnabled()) {|
> | |LOG.debug("Binding " + principal + " to " + localAddr);|
> | |}|
> | |*{color:#FF0000}bindAddr = new InetSocketAddress(localAddr, 0);{color}*|
> | *{color:#FF0000}{color}* |*{color:#FF0000}}{color}*|
> | |}|
> | |}|
>
> So in my Hadoop 2.7.x Cluster I made the following changes and traffic flows
> correctly out the correct interfaces:
>
> diff --git
> a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
>
> b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
> index e1be271..c5b4a42 100644
> ---
> a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
> +++
> b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
> @@ -305,6 +305,9 @@
> public static final String IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_KEY
> = "ipc.client.fallback-to-simple-auth-allowed";
> public static final boolean
> IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_DEFAULT = false;
>
> + public static final String IPC_CLIENT_NO_BIND_LOCAL_ADDR_KEY =
> "ipc.client.nobind.local.addr";
> + public static final boolean IPC_CLIENT_NO_BIND_LOCAL_ADDR_DEFAULT = false;
> +
> public static final String IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SASL_KEY =
> "ipc.client.connect.max.retries.on.sasl";
> public static final int IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SASL_DEFAULT
> = 5;
> diff --git
> a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
>
> b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
> index a6f4eb6..7bfddb7 100644
> ---
> a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
> +++
> b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java
> @@ -129,7 +129,9 @@ public static void setCallIdAndRetryCount(int cid, int
> rc) {
>
> private final int connectionTimeout;
>
> +
> private final boolean fallbackAllowed;
> + private final boolean noBindLocalAddr;
> private final byte[] clientId;
>
> final static int CONNECTION_CONTEXT_CALL_ID = -3;
> @@ -642,7 +644,11 @@ private synchronized void setupConnection() throws
> IOException {
> InetAddress localAddr = NetUtils.getLocalInetAddress(host);
> if (localAddr != null) {
> this.socket.setReuseAddress(true);
> - this.socket.bind(new InetSocketAddress(localAddr, 0));
> + if (noBindLocalAddr) {
> + this.socket.bind(null);
> + } else {
> + this.socket.bind(new InetSocketAddress(localAddr, 0));
> + }
> }
> }
> }
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