[jira] [Commented] (YARN-2024) IOException in AppLogAggregatorImpl does not give stacktrace and leaves aggregated TFile in a bad state.

["Kuhu Shukla (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-2024?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14908224#comment-14908224 ] 

Kuhu Shukla commented on YARN-2024:
-----------------------------------

[~xgong] Are you still working on this JIRA? Thanks!

> IOException in AppLogAggregatorImpl does not give stacktrace and leaves aggregated TFile in a bad state.
> --------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2024
>                 URL: https://issues.apache.org/jira/browse/YARN-2024
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: log-aggregation
>    Affects Versions: 0.23.10, 2.4.0
>            Reporter: Eric Payne
>            Assignee: Xuan Gong
>            Priority: Critical
>
> Multiple issues were encountered when AppLogAggregatorImpl encountered an IOException in AppLogAggregatorImpl#uploadLogsForContainer while aggregating yarn-logs for an application that had very large (>150G each) error logs.
> - An IOException was encountered during the LogWriter#append call, and a message was printed, but no stacktrace was provided. Message: "ERROR: Couldn't upload logs for container_nnnnnnnnnnnnn_nnnnnnn_nn_nnnnnn. Skipping this container."
> - After the IOExceptin, the TFile is in a bad state, so subsequent calls to LogWriter#append fail with the following stacktrace:
> 2014-04-16 13:29:09,772 [LogAggregationService #17907] ERROR org.apache.hadoop.yarn.YarnUncaughtExceptionHandler: Thread Thread[LogAggregationService #17907,5,main] threw an Exception.
> java.lang.IllegalStateException: Incorrect state to start a new key: IN_VALUE
>         at org.apache.hadoop.io.file.tfile.TFile$Writer.prepareAppendKey(TFile.java:528)
>         at org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat$LogWriter.append(AggregatedLogFormat.java:262)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl.uploadLogsForContainer(AppLogAggregatorImpl.java:128)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl.doAppLogAggregation(AppLogAggregatorImpl.java:164)
> ...
> - At this point, the yarn-logs cleaner still thinks the thread is aggregating, so the huge yarn-logs never get cleaned up for that application.



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