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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-18613) Race condition between master restart and test code when restoring distributed cluster after integration test
Date Wed, 16 Aug 2017 23:07:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18613?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser resolved HBASE-18613.
--------------------------------
    Resolution: Invalid

Jumped the gun on this one. That warning wasn't actually fatal. The test had failed due to
some exceptions in the action a bit earlier in the log.

> Race condition between master restart and test code when restoring distributed cluster
after integration test
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-18613
>                 URL: https://issues.apache.org/jira/browse/HBASE-18613
>             Project: HBase
>          Issue Type: Bug
>          Components: integration tests
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Minor
>             Fix For: 2.0.0, 1.4.0, 1.3.2, 1.2.7, 1.1.13
>
>
> Noticed the following in some internal testing (line numbers likely are skewed)
> {noformat}
> 2017-08-16 21:20:25,557| 2017-08-16 21:20:25,553 WARN  [main] client.ConnectionManager$HConnectionImplementation:
Checking master connection
> 2017-08-16 21:20:25,557| com.google.protobuf.ServiceException: org.apache.hadoop.hbase.exceptions.ConnectionClosingException:
Call to master1.domain.com/10.0.2.131:16000 failed on local exception: org.apache.hadoop.hbase.exceptions.ConnectionClosingException:
Connection to master1.domain.com/10.0.2.131:16000 is closing. Call id=581, waitTime=1
> 2017-08-16 21:20:25,557| at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:223)
> 2017-08-16 21:20:25,558| at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:287)
> 2017-08-16 21:20:25,560| at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.isMasterRunning(MasterProtos.java:62739)
> 2017-08-16 21:20:25,560| at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceState.isMasterRunning(ConnectionManager.java:1448)
> 2017-08-16 21:20:25,561| at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.isKeepAliveMasterConnectedAndRunning(ConnectionManag
> er.java:2124)
> 2017-08-16 21:20:25,561| at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveMasterService(ConnectionManager.java:1712)
> 2017-08-16 21:20:25,562| at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getMaster(ConnectionManager.java:1701)
> 2017-08-16 21:20:25,562| at org.apache.hadoop.hbase.DistributedHBaseCluster.getMasterAdminService(DistributedHBaseCluster.java:153)
> 2017-08-16 21:20:25,563| at org.apache.hadoop.hbase.DistributedHBaseCluster.waitForActiveAndReadyMaster(DistributedHBaseCluster.java:184)
> 2017-08-16 21:20:25,563| at org.apache.hadoop.hbase.HBaseCluster.waitForActiveAndReadyMaster(HBaseCluster.java:204)
> 2017-08-16 21:20:25,563| at org.apache.hadoop.hbase.DistributedHBaseCluster.restoreMasters(DistributedHBaseCluster.java:278)
> 2017-08-16 21:20:25,563| at org.apache.hadoop.hbase.DistributedHBaseCluster.restoreClusterStatus(DistributedHBaseCluster.java:239)
> 2017-08-16 21:20:25,563| at org.apache.hadoop.hbase.HBaseCluster.restoreInitialStatus(HBaseCluster.java:235)
> 2017-08-16 21:20:25,564| at org.apache.hadoop.hbase.IntegrationTestingUtility.restoreCluster(IntegrationTestingUtility.java:99)
> 2017-08-16 21:20:25,564| at org.apache.hadoop.hbase.IntegrationTestBase.cleanUpCluster(IntegrationTestBase.java:200)
> 2017-08-16 21:20:25,564| at org.apache.hadoop.hbase.IntegrationTestDDLMasterFailover.cleanUpCluster(IntegrationTestDDLMasterFailover.java:146)
> 2017-08-16 21:20:25,564| at org.apache.hadoop.hbase.IntegrationTestBase.cleanUp(IntegrationTestBase.java:140)
> 2017-08-16 21:20:25,564| at org.apache.hadoop.hbase.IntegrationTestBase.doWork(IntegrationTestBase.java:125)
> 2017-08-16 21:20:25,565| at org.apache.hadoop.hbase.util.AbstractHBaseTool.run(AbstractHBaseTool.java:112)
> 2017-08-16 21:20:25,565| at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
> 2017-08-16 21:20:25,565| at org.apache.hadoop.hbase.IntegrationTestDDLMasterFailover.main(IntegrationTestDDLMasterFailover.java:832)
> 2017-08-16 21:20:25,566| Caused by: org.apache.hadoop.hbase.exceptions.ConnectionClosingException:
Call to master1.domain.com/10.0.2.131:16000 failed on local exception: org.apache.hadoop.hbase.exceptions.ConnectionClosingException:
Connection to master1.domain.com/10.0.2.131:16000 is closing. Call id=581, waitTime=1
> 2017-08-16 21:20:25,566| at org.apache.hadoop.hbase.ipc.RpcClientImpl.wrapException(RpcClientImpl.java:1258)
> 2017-08-16 21:20:25,566| at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1229)
> 2017-08-16 21:20:25,566| at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:213)
> 2017-08-16 21:20:25,566| ... 20 more
> 2017-08-16 21:20:25,566| Caused by: org.apache.hadoop.hbase.exceptions.ConnectionClosingException:
Connection to master1.domain.com/10.0.2.131:16000 is closing. Call id=581, waitTime=1
> 2017-08-16 21:20:25,567| at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.cleanupCalls(RpcClientImpl.java:1047)
> 2017-08-16 21:20:25,567| at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.close(RpcClientImpl.java:846)
> 2017-08-16 21:20:25,567| at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.run(RpcClientImpl.java:574)
> {noformat}
> This is when the IntegrationTest harness is resetting the state of the distributed cluster.
When dealing with "slow" nodes, the restart of the previously active master could be delayed
which cause the test code to see a ConnectionClosingException (wrapped in a ServiceException).
> I think we want to just consume this Exception, same as MasterNotRunningException and
ZooKeeperConnectionException, in {{DistributedHBaseCluster#waitForActiveAndReadyMaster(long)}}.



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