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Posted to mapreduce-dev@hadoop.apache.org by "Bilwa S T (Jira)" <ji...@apache.org> on 2021/06/16 07:14:00 UTC

[jira] [Created] (MAPREDUCE-7353) Mapreduce job fails when NM is stopped

Bilwa S T created MAPREDUCE-7353:
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             Summary: Mapreduce job fails when NM is stopped
                 Key: MAPREDUCE-7353
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7353
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Bilwa S T
            Assignee: Bilwa S T


Job fails as task fail due to too many fetch failures 
{code:java}
Line 48048: 2021-06-02 16:25:02,002 | INFO  | ContainerLauncher #6 | Processing the event EventType: CONTAINER_REMOTE_CLEANUP for container container_e03_1622107691213_1054_01_000005 taskAttempt attempt_1622107691213_1054_m_000000_0 | ContainerLauncherImpl.java:394
	Line 48053: 2021-06-02 16:25:02,002 | INFO  | ContainerLauncher #6 | KILLING attempt_1622107691213_1054_m_000000_0 | ContainerLauncherImpl.java:209
	Line 58026: 2021-06-02 16:26:34,034 | INFO  | AsyncDispatcher event handler | TaskAttempt killed because it ran on unusable node node-group-1ZYEq0002:26009. AttemptId:attempt_1622107691213_1054_m_000000_0 | JobImpl.java:1401
	Line 58030: 2021-06-02 16:26:34,034 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_KILL | TaskAttemptImpl.java:1390
	Line 58035: 2021-06-02 16:26:34,034 | INFO  | RMCommunicator Allocator | Killing taskAttempt:attempt_1622107691213_1054_m_000000_0 because it is running on unusable node:node-group-1ZYEq0002:26009 | RMContainerAllocator.java:1066
	Line 58043: 2021-06-02 16:26:34,034 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_KILL | TaskAttemptImpl.java:1390
	Line 58054: 2021-06-02 16:26:34,034 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_DIAGNOSTICS_UPDATE | TaskAttemptImpl.java:1390
	Line 58055: 2021-06-02 16:26:34,034 | INFO  | AsyncDispatcher event handler | Diagnostics report from attempt_1622107691213_1054_m_000000_0: Container released on a *lost* node | TaskAttemptImpl.java:2649
	Line 58057: 2021-06-02 16:26:34,034 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_KILL | TaskAttemptImpl.java:1390
	Line 60317: 2021-06-02 16:26:57,057 | INFO  | AsyncDispatcher event handler | Too many fetch-failures for output of task attempt: attempt_1622107691213_1054_m_000000_0 ... raising fetch failure to map | JobImpl.java:2005
	Line 60319: 2021-06-02 16:26:57,057 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_TOO_MANY_FETCH_FAILURE | TaskAttemptImpl.java:1390
	Line 60320: 2021-06-02 16:26:57,057 | INFO  | AsyncDispatcher event handler | attempt_1622107691213_1054_m_000000_0 transitioned from state SUCCESS_CONTAINER_CLEANUP to FAILED, event type is TA_TOO_MANY_FETCH_FAILURE and nodeId=node-group-1ZYEq0002:26009 | TaskAttemptImpl.java:1411
	Line 69487: 2021-06-02 16:30:02,002 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_DIAGNOSTICS_UPDATE | TaskAttemptImpl.java:1390
	Line 69527: 2021-06-02 16:30:02,002 | INFO  | AsyncDispatcher event handler | Diagnostics report from attempt_1622107691213_1054_m_000000_0: cleanup failed for container container_e03_1622107691213_1054_01_000005 : java.net.ConnectException: Call From node-group-1ZYEq0001/192.168.0.66 to node-group-1ZYEq0002:26009 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	Line 69607: 2021-06-02 16:30:02,002 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_CONTAINER_CLEANED | TaskAttemptImpl.java:1390
	Line 69609: 2021-06-02 16:30:02,002 | DEBUG | AsyncDispatcher event handler | Processing attempt_1622107691213_1054_m_000000_0 of type TA_CONTAINER_CLEANED | TaskAttemptImpl.java:1390
	Line 73645: 2021-06-02 16:23:56,056 | DEBUG | fetcher#9 | Fetcher 9 going to fetch from node-group-1ZYEq0002:26008 for: [attempt_1622107691213_1054_m_000000_0] | Fetcher.java:318
	Line 73646: 2021-06-02 16:23:56,056 | DEBUG | fetcher#9 | MapOutput URL for node-group-1ZYEq0002:26008 -> http://node-group-1ZYEq0002:26008/mapOutput?job=job_1622107691213_1054&reduce=4&map=attempt_1622107691213_1054_m_000000_0 | Fetcher.java:686
	Line 74093: 2021-06-02 16:26:56,056 | INFO  | fetcher#9 | Reporting fetch failure for attempt_1622107691213_1054_m_000000_0 to MRAppMaster. | ShuffleSchedulerImpl.java:349
{code}

As we can see from logs that RM reported AM about node update at 16:26:34 but event was skipped as KILL event is ignored when TaskAttemptImpl is in SUCCESS_CONTAINER_CLEANUP state. So next we receive TA_TOO_MANY_FETCH_FAILURE event which will lead to task fail. 
 



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