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https://issues.apache.org/jira/browse/TEZ-2313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14504342#comment-14504342
]
TezQA commented on TEZ-2313:
----------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12726774/TEZ-2313.2.patch
against master revision 44046f8.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in .
Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/499//testReport/
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/499//console
This message is automatically generated.
> Regression in handling obsolete events in ShuffleScheduler
> ----------------------------------------------------------
>
> Key: TEZ-2313
> URL: https://issues.apache.org/jira/browse/TEZ-2313
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Bikas Saha
> Assignee: Rajesh Balamohan
> Priority: Blocker
> Attachments: TEZ-2313.1.patch, TEZ-2313.2.patch, TEZ-2313.WIP.patch
>
>
> /cc [~rohini]
> When an obsolete event is received then the shuffle scheduler fails fast even
> when pipelining is disabled. IIRC, obsolete inputs were supposed to fail the
> shuffled inputs if we were reading and merging partial spilled outputs. But
> in this case, pipelining is not on. So not sure why we are failing fast.
> {noformat}
> Caused by: java.io.IOException: InputAttemptIdentifier
> [inputIdentifier=InputIdentifier [inputIndex=4485], attemptNumber=1,
> pathComponent=null, fetchTypeInfo=FINAL_MERGE_ENABLED, spillEventId=-1] is
> marked as obsoleteInput, but it exists in shuffleInfoEventMap. Some data
> could have been already merged to memory/disk outputs. Failing the fetch
> early.
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.ShuffleScheduler.obsoleteInput(ShuffleScheduler.java:546)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.ShuffleInputEventHandlerOrderedGrouped.processTaskFailedEvent(ShuffleInputEventHandlerOrderedGrouped.java:122)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.ShuffleInputEventHandlerOrderedGrouped.handleEvent(ShuffleInputEventHandlerOrderedGrouped.java:73)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.ShuffleInputEventHandlerOrderedGrouped.handleEvents(ShuffleInputEventHandlerOrderedGrouped.java:63)
> at
> org.apache.tez.runtime.library.common.shuffle.orderedgrouped.Shuffle.handleEvents(Shuffle.java:246)
> at
> org.apache.tez.runtime.library.input.OrderedGroupedKVInput.handleEvents(OrderedGroupedKVInput.java:265)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.handleEvent(LogicalIOProcessorRuntimeTask.java:620)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.access$1100(LogicalIOProcessorRuntimeTask.java:93)
> at
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask$1.runInternal(LogicalIOProcessorRuntimeTask.java:683)
> at
> org.apache.tez.common.RunnableWithNdc.run(RunnableWithNdc.java:35){noformat}
> /cc [~rajesh.balamohan]
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