[
https://issues.apache.org/jira/browse/TEZ-3879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16297650#comment-16297650
]
Sergey Shelukhin commented on TEZ-3879:
---------------------------------------
The whole log is very large... do you have smth in particular of interest?
There are not really any more log statement for these tasks at the time.
The task has finished successfully and the then found at the end that it has
been killed.
> potential abort propagation issue (race?)
> -----------------------------------------
>
> Key: TEZ-3879
> URL: https://issues.apache.org/jira/browse/TEZ-3879
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Sergey Shelukhin
>
> I'm looking at a Hive LLAP query where AM aborts some tasks for whatever
> reason (AM preemption).
> On the nodes, the abort is handled by TezTaskRunner2 and it looks like
> there's some race there for some cases.
> Most tasks receive abort normally, like so (the first thing Hive TezProcessor
> does on any abort is log "Received abort").
> {noformat}
> 2017-12-18T14:44:26,616 INFO [TaskHeartbeatThread ()]
> org.apache.tez.runtime.task.TezTaskRunner2: Attempting to abort
> attempt_1513367667720_3619_1_02_000012_0 due to an invocation of
> shutdownRequested
> 2017-12-18T14:44:26,621 INFO [TaskHeartbeatThread ()]
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor: Received abort
> 2017-12-18T14:44:26,622 INFO [TaskHeartbeatThread ()]
> org.apache.hadoop.hive.ql.exec.tez.TezProcessor: Forwarding abort to
> RecordProcessor
> 2017-12-18T14:44:26,622 INFO [TaskHeartbeatThread ()]
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor: Forwarding abort to
> mapOp: {} MAP
> {noformat}
> However on some tasks that are terminated shortly after init, TezProcessor is
> never called. Moreover, when AM tries to kill the task again (when it's
> already running, having ignored the abort) Tez says the task is already
> aborted and doesn't propagate this either.
> {noformat}
> 2017-12-18T14:47:22,995 INFO [TezTR-667720_3619_3_2_12_0
> (1513367667720_3619_3_02_000012_0)]
> reducesink.VectorReduceSinkCommonOperator: Using tag = -1
> (this is the end of Hive init)
> ...
> 2017-12-18T14:47:23,133 INFO [TaskHeartbeatThread ()]
> org.apache.tez.runtime.task.TezTaskRunner2: Attempting to abort
> attempt_1513367667720_3619_3_02_000012_0 due to an invocation of
> shutdownRequested
> (no TezProcessor log statements)
> {noformat}
> The task keeps running and the next kill is ignored
> {noformat}
> 2017-12-18T14:47:23,575 INFO [IPC Server handler 2 on 40617 ()]
> org.apache.hadoop.hive.llap.daemon.impl.ContainerRunnerImpl: DBG: Received
> terminateFragment request for attempt_1513367667720_3619_3_02_000012_0
> ...
> 2017-12-18T14:47:23,575 INFO [IPC Server handler 2 on 40617 ()]
> org.apache.tez.runtime.task.TezTaskRunner2: Ignoring killTask request since
> the task with id attempt_1513367667720_3619_3_02_000012_0 has ended for
> reason: CONTAINER_STOP_REQUESTED. IgnoredError:
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
