[jira] [Commented] (YARN-6643) TestRMFailover fails rarely due to port conflict
[ https://issues.apache.org/jira/browse/YARN-6643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16450791#comment-16450791 ] Hudson commented on YARN-6643: -- SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14057/]) YARN-6643. TestRMFailover fails rarely due to port conflict. Contributed (xyao: rev 7d17dd5ded9418036b669fd88557e56b0db38ece) * (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/HATestUtil.java > TestRMFailover fails rarely due to port conflict > > > Key: YARN-6643 > URL: https://issues.apache.org/jira/browse/YARN-6643 > Project: Hadoop YARN > Issue Type: Bug > Components: test >Affects Versions: 2.9.0, 3.0.0-alpha4 >Reporter: Robert Kanter >Assignee: Robert Kanter >Priority: Major > Fix For: 2.9.0, 3.0.0-alpha4, 2.8.2 > > Attachments: YARN-6643.001.patch > > > We've seen various tests in {{TestRMFailover}} fail very rarely with a > message like "org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.io.IOException: ResourceManager failed to start. Final state is > STOPPED". > After some digging, it turns out that it's due to a port conflict with the > embedded ZooKeeper in the tests. The embedded ZooKeeper uses > {{ServerSocketUtil#getPort}} to choose a free port, but the RMs are > configured to 1 + and 2 + (e.g. the > default port for the RM is 8032, so you'd use 18032 and 28032). > When I was able to reproduce this, I saw that ZooKeeper was using port 18033, > which is 1 + 8033, the default RM Admin port. It results in an error > like this, causing the RM to be unable to start, and hence the original error > message in the test failure: > {noformat} > 2017-05-24 01:16:52,735 INFO service.AbstractService > (AbstractService.java:noteFailure(272)) - Service ResourceManager failed in > state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:139) > at > org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC.getServer(HadoopYarnProtoRPC.java:65) > at org.apache.hadoop.yarn.ipc.YarnRPC.getServer(YarnRPC.java:54) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.startServer(AdminService.java:171) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.serviceStart(AdminService.java:158) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) > at > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1147) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.yarn.server.MiniYARNCluster$2.run(MiniYARNCluster.java:310) > Caused by: java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791) > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:720) > at org.apache.hadoop.ipc.Server.bind(Server.java:482) > at org.apache.hadoop.ipc.Server$Listener.(Server.java:688) > at org.apache.hadoop.ipc.Server.(Server.java:2376) > at org.apache.hadoop.ipc.RPC$Server.(RPC.java:1042) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server.(ProtobufRpcEngine.java:535) > at > org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:510) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:887) > at >
[jira] [Commented] (YARN-6643) TestRMFailover fails rarely due to port conflict
[ https://issues.apache.org/jira/browse/YARN-6643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16025582#comment-16025582 ] Robert Kanter commented on YARN-6643: - Thanks Jason! > TestRMFailover fails rarely due to port conflict > > > Key: YARN-6643 > URL: https://issues.apache.org/jira/browse/YARN-6643 > Project: Hadoop YARN > Issue Type: Bug > Components: test >Affects Versions: 2.9.0, 3.0.0-alpha3 >Reporter: Robert Kanter >Assignee: Robert Kanter > Fix For: 2.9.0, 3.0.0-alpha3, 2.8.2 > > Attachments: YARN-6643.001.patch > > > We've seen various tests in {{TestRMFailover}} fail very rarely with a > message like "org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.io.IOException: ResourceManager failed to start. Final state is > STOPPED". > After some digging, it turns out that it's due to a port conflict with the > embedded ZooKeeper in the tests. The embedded ZooKeeper uses > {{ServerSocketUtil#getPort}} to choose a free port, but the RMs are > configured to 1 + and 2 + (e.g. the > default port for the RM is 8032, so you'd use 18032 and 28032). > When I was able to reproduce this, I saw that ZooKeeper was using port 18033, > which is 1 + 8033, the default RM Admin port. It results in an error > like this, causing the RM to be unable to start, and hence the original error > message in the test failure: > {noformat} > 2017-05-24 01:16:52,735 INFO service.AbstractService > (AbstractService.java:noteFailure(272)) - Service ResourceManager failed in > state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:139) > at > org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC.getServer(HadoopYarnProtoRPC.java:65) > at org.apache.hadoop.yarn.ipc.YarnRPC.getServer(YarnRPC.java:54) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.startServer(AdminService.java:171) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.serviceStart(AdminService.java:158) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) > at > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1147) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.yarn.server.MiniYARNCluster$2.run(MiniYARNCluster.java:310) > Caused by: java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791) > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:720) > at org.apache.hadoop.ipc.Server.bind(Server.java:482) > at org.apache.hadoop.ipc.Server$Listener.(Server.java:688) > at org.apache.hadoop.ipc.Server.(Server.java:2376) > at org.apache.hadoop.ipc.RPC$Server.(RPC.java:1042) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server.(ProtobufRpcEngine.java:535) > at > org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:510) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:887) > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.createServer(RpcServerFactoryPBImpl.java:169) > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:132) > ... 9 more > Caused by: java.net.BindException: Address already in use > at sun.nio.ch.Net.bind0(Native Method) > at sun.nio.ch.Net.bind(Net.java:444) > at sun.nio.ch.Net.bind(Net.java:436) > at >
[jira] [Commented] (YARN-6643) TestRMFailover fails rarely due to port conflict
[ https://issues.apache.org/jira/browse/YARN-6643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16025501#comment-16025501 ] Hudson commented on YARN-6643: -- SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11784 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/11784/]) YARN-6643. TestRMFailover fails rarely due to port conflict. Contributed (jlowe: rev 3fd6a2da4e537423d1462238e10cc9e1f698d1c2) * (edit) hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/HATestUtil.java > TestRMFailover fails rarely due to port conflict > > > Key: YARN-6643 > URL: https://issues.apache.org/jira/browse/YARN-6643 > Project: Hadoop YARN > Issue Type: Bug > Components: test >Affects Versions: 2.9.0, 3.0.0-alpha3 >Reporter: Robert Kanter >Assignee: Robert Kanter > Fix For: 2.9.0, 3.0.0-alpha3, 2.8.2 > > Attachments: YARN-6643.001.patch > > > We've seen various tests in {{TestRMFailover}} fail very rarely with a > message like "org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.io.IOException: ResourceManager failed to start. Final state is > STOPPED". > After some digging, it turns out that it's due to a port conflict with the > embedded ZooKeeper in the tests. The embedded ZooKeeper uses > {{ServerSocketUtil#getPort}} to choose a free port, but the RMs are > configured to 1 + and 2 + (e.g. the > default port for the RM is 8032, so you'd use 18032 and 28032). > When I was able to reproduce this, I saw that ZooKeeper was using port 18033, > which is 1 + 8033, the default RM Admin port. It results in an error > like this, causing the RM to be unable to start, and hence the original error > message in the test failure: > {noformat} > 2017-05-24 01:16:52,735 INFO service.AbstractService > (AbstractService.java:noteFailure(272)) - Service ResourceManager failed in > state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:139) > at > org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC.getServer(HadoopYarnProtoRPC.java:65) > at org.apache.hadoop.yarn.ipc.YarnRPC.getServer(YarnRPC.java:54) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.startServer(AdminService.java:171) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.serviceStart(AdminService.java:158) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) > at > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1147) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.yarn.server.MiniYARNCluster$2.run(MiniYARNCluster.java:310) > Caused by: java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791) > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:720) > at org.apache.hadoop.ipc.Server.bind(Server.java:482) > at org.apache.hadoop.ipc.Server$Listener.(Server.java:688) > at org.apache.hadoop.ipc.Server.(Server.java:2376) > at org.apache.hadoop.ipc.RPC$Server.(RPC.java:1042) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server.(ProtobufRpcEngine.java:535) > at > org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:510) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:887) > at >
[jira] [Commented] (YARN-6643) TestRMFailover fails rarely due to port conflict
[ https://issues.apache.org/jira/browse/YARN-6643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16024904#comment-16024904 ] Jason Lowe commented on YARN-6643: -- +1 lgtm. The unit tests that failed don't even call the code that was changed. I was able to reproduce one of the tests exiting early and filed YARN-6647. I'll commit this later today if there are no objections. > TestRMFailover fails rarely due to port conflict > > > Key: YARN-6643 > URL: https://issues.apache.org/jira/browse/YARN-6643 > Project: Hadoop YARN > Issue Type: Bug > Components: test >Affects Versions: 2.9.0, 3.0.0-alpha3 >Reporter: Robert Kanter >Assignee: Robert Kanter > Attachments: YARN-6643.001.patch > > > We've seen various tests in {{TestRMFailover}} fail very rarely with a > message like "org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.io.IOException: ResourceManager failed to start. Final state is > STOPPED". > After some digging, it turns out that it's due to a port conflict with the > embedded ZooKeeper in the tests. The embedded ZooKeeper uses > {{ServerSocketUtil#getPort}} to choose a free port, but the RMs are > configured to 1 + and 2 + (e.g. the > default port for the RM is 8032, so you'd use 18032 and 28032). > When I was able to reproduce this, I saw that ZooKeeper was using port 18033, > which is 1 + 8033, the default RM Admin port. It results in an error > like this, causing the RM to be unable to start, and hence the original error > message in the test failure: > {noformat} > 2017-05-24 01:16:52,735 INFO service.AbstractService > (AbstractService.java:noteFailure(272)) - Service ResourceManager failed in > state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > org.apache.hadoop.yarn.exceptions.YarnRuntimeException: > java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:139) > at > org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC.getServer(HadoopYarnProtoRPC.java:65) > at org.apache.hadoop.yarn.ipc.YarnRPC.getServer(YarnRPC.java:54) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.startServer(AdminService.java:171) > at > org.apache.hadoop.yarn.server.resourcemanager.AdminService.serviceStart(AdminService.java:158) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:120) > at > org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1147) > at > org.apache.hadoop.service.AbstractService.start(AbstractService.java:193) > at > org.apache.hadoop.yarn.server.MiniYARNCluster$2.run(MiniYARNCluster.java:310) > Caused by: java.net.BindException: Problem binding to [0.0.0.0:18033] > java.net.BindException: Address already in use; For more details see: > http://wiki.apache.org/hadoop/BindException > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:526) > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791) > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:720) > at org.apache.hadoop.ipc.Server.bind(Server.java:482) > at org.apache.hadoop.ipc.Server$Listener.(Server.java:688) > at org.apache.hadoop.ipc.Server.(Server.java:2376) > at org.apache.hadoop.ipc.RPC$Server.(RPC.java:1042) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server.(ProtobufRpcEngine.java:535) > at > org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:510) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:887) > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.createServer(RpcServerFactoryPBImpl.java:169) > at > org.apache.hadoop.yarn.factories.impl.pb.RpcServerFactoryPBImpl.getServer(RpcServerFactoryPBImpl.java:132) > ... 9 more > Caused by: java.net.BindException: Address already in use > at
[jira] [Commented] (YARN-6643) TestRMFailover fails rarely due to port conflict
[ https://issues.apache.org/jira/browse/YARN-6643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16024307#comment-16024307 ] Hadoop QA commented on YARN-6643: - | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 22s{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m 21s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 34s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 25s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 38s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 18s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 1s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 22s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 36s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 35s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 35s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 26s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 35s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s{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} findbugs {color} | {color:green} 1m 8s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 20s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 42m 59s{color} | {color:red} hadoop-yarn-server-resourcemanager in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 21s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 66m 37s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Timed out junit tests | org.apache.hadoop.yarn.server.resourcemanager.TestRMStoreCommands | | | org.apache.hadoop.yarn.server.resourcemanager.TestSubmitApplicationWithRMHA | | | org.apache.hadoop.yarn.server.resourcemanager.TestKillApplicationWithRMHA | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:14b5c93 | | JIRA Issue | YARN-6643 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12869806/YARN-6643.001.patch | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux ab1e0ee1cf4c 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31 14:13:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / d049bd2 | | Default Java | 1.8.0_131 | | findbugs | v3.1.0-RC1 | | unit | https://builds.apache.org/job/PreCommit-YARN-Build/16017/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt | | Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/16017/testReport/ | | modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager | | Console output | https://builds.apache.org/job/PreCommit-YARN-Build/16017/console | | Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org | This message was automatically generated. > TestRMFailover fails rarely due to