[
https://issues.apache.org/jira/browse/HDFS-6694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14063592#comment-14063592
]
Yongjun Zhang commented on HDFS-6694:
-------------------------------------
Listed some selected test failures below, though they are precommit runs, it
indicate some flakiness of the test to investigate.
1. https://builds.apache.org/job/PreCommit-HDFS-Build/7360,
https://builds.apache.org/job/PreCommit-HDFS-Build/7346 etc.
{code}
Error Message
Deferred
Stacktrace
java.lang.RuntimeException: Deferred
at
org.apache.hadoop.test.MultithreadedTestUtil$TestContext.checkException(MultithreadedTestUtil.java:130)
at
org.apache.hadoop.test.MultithreadedTestUtil$TestContext.waitFor(MultithreadedTestUtil.java:121)
at
org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover.testPipelineRecoveryStress(TestPipelinesFailover.java:456)
Caused by: java.io.IOException: Failed to replace a bad datanode on the
existing pipeline due to no more good datanodes being available to try. (Nodes:
current=[127.0.0.1:54409], original=[127.0.0.1:54409]). The current failed
datanode replacement policy is DEFAULT, and a client may configure this via
'dfs.client.block.write.replace-datanode-on-failure.policy' in its
configuration.
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.findNewDatanode(DFSOutputStream.java:963)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:1029)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1174)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:927)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:478)
{code}
2. https://builds.apache.org/job/PreCommit-HDFS-Build/7350
{code}
Error Message
Deferred
Stacktrace
java.lang.RuntimeException: Deferred
at
org.apache.hadoop.test.MultithreadedTestUtil$TestContext.checkException(MultithreadedTestUtil.java:130)
at
org.apache.hadoop.test.MultithreadedTestUtil$TestContext.waitFor(MultithreadedTestUtil.java:121)
at
org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover.testPipelineRecoveryStress(TestPipelinesFailover.java:456)
Caused by: org.apache.hadoop.ipc.RemoteException: File /test-10 could only be
replicated to 0 nodes instead of minReplication (=1). There are 3 datanode(s)
running and 3 node(s) are excluded in this operation.
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1474)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2791)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:611)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:455)
at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:605)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:932)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2084)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2080)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1626)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2078)
at org.apache.hadoop.ipc.Client.call(Client.java:1411)
at org.apache.hadoop.ipc.Client.call(Client.java:1364)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
at com.sun.proxy.$Proxy17.addBlock(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:368)
at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101)
at com.sun.proxy.$Proxy18.addBlock(Unknown Source)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1435)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1260)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:518)
{code}
> TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently
> with various symptoms
> ------------------------------------------------------------------------------------------------
>
> Key: HDFS-6694
> URL: https://issues.apache.org/jira/browse/HDFS-6694
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Yongjun Zhang
>
> TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently
> with various symptoms. Typical failures are described in first comment.
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