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Posted to issues@tez.apache.org by "László Bodor (Jira)" <ji...@apache.org> on 2021/05/20 14:38:00 UTC
[jira] [Resolved] (TEZ-4305) Check StreamCapabilities before using
HFLUSH from ProtoMessageWriter
[ https://issues.apache.org/jira/browse/TEZ-4305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
László Bodor resolved TEZ-4305.
-------------------------------
Resolution: Fixed
> Check StreamCapabilities before using HFLUSH from ProtoMessageWriter
> --------------------------------------------------------------------
>
> Key: TEZ-4305
> URL: https://issues.apache.org/jira/browse/TEZ-4305
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.9.2, 0.10.0
> Reporter: Kishen Das
> Assignee: Kishen Das
> Priority: Major
> Fix For: 0.10.1
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> Following exception is thrown whenever we do ProtoMessageWriter.hflush on S3, which internally calls S3ABlockOutputStream.hflush which is not supported and it throws java.lang.UnsupportedOperationException.
> bdffe22d96ae [mdc@18060 class="yarn.YarnUncaughtExceptionHandler" level="ERROR" thread="HistoryEventHandlingThread"] Thread Thread[HistoryEventHandlingThread, 5,main] threw an Exception.^Mjava.lang.UnsupportedOperationException: S3A streams are not Syncable^M at org.apache.hadoop.fs.s3a.S3ABlockOutputStream.hflush(S3ABlockOutputStream.java:657)^M at org.apache.hadoop.fs.FS DataOutputStream.hflush(FSDataOutputStream.java:136)^M at org.apache.hadoop.io.SequenceFile$Writer.hflush(SequenceFile.java:1367)^M at org.apache.tez.dag.history.logging.proto.ProtoMessageWriter.hflush(ProtoMessageWr iter.java:64)^M at org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.finishCurrentDag(ProtoHistoryLoggingService.java:239)^M at org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.han dleEvent(ProtoHistoryLoggingService.java:198)^M at org.apache.tez.dag.history.logging.proto.ProtoHistoryLoggingService.loop(ProtoHistoryLoggingService.java:153)^M at java.lang.Thread.run(Thread.java:748)^M
> In order to fix this issue, we should first check if the method is supported or not using StreamCapabilities, before invoking it.
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