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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (PHOENIX-3806) Reduce IndexUpdateManager sorting overhead during Index rebuild
Date Tue, 09 May 2017 00:13:04 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-3806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved PHOENIX-3806.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 4.11.0

> Reduce IndexUpdateManager sorting overhead during Index rebuild
> ---------------------------------------------------------------
>
>                 Key: PHOENIX-3806
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3806
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.10.0
>            Reporter: Lars Hofhansl
>            Assignee: Vincent Poon
>             Fix For: 4.11.0
>
>         Attachments: PHOENIX-3806.v1.patch
>
>
> Here's the stack trace. The Array contains 50001 Delete Mutations in this case.
> It seems the code is sorting this over and over again.
> {code}
> Thread 170 (B.DefaultRpcServer.handler=67,queue=7,port=60020):
>   State: RUNNABLE
>   Blocked count: 220598
>   Waited count: 377933
>   Stack:
>     java.util.TimSort.binarySort(TimSort.java:296)
>     java.util.TimSort.sort(TimSort.java:239)
>     java.util.Arrays.sort(Arrays.java:1438)
>     org.apache.phoenix.hbase.index.covered.update.SortedCollection.iterator(SortedCollection.java:78)
>     org.apache.phoenix.hbase.index.covered.update.IndexUpdateManager.fixUpCurrentUpdates(IndexUpdateManager.java:128)
>     org.apache.phoenix.hbase.index.covered.update.IndexUpdateManager.addIndexUpdate(IndexUpdateManager.java:115)
>     org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addCurrentStateMutationsForBatch(NonTxIndexBuilder.java:333)
>     org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addUpdateForGivenTimestamp(NonTxIndexBuilder.java:258)
>     org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addMutationsForBatch(NonTxIndexBuilder.java:231)
>     org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.batchMutationAndAddUpdates(NonTxIndexBuilder.java:109)
>     org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.getIndexUpdate(NonTxIndexBuilder.java:71)
>     org.apache.phoenix.hbase.index.builder.IndexBuildManager$1.call(IndexBuildManager.java:137)
>     org.apache.phoenix.hbase.index.builder.IndexBuildManager$1.call(IndexBuildManager.java:133)
>     java.util.concurrent.FutureTask.run(FutureTask.java:266)
>     com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293)
>     com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:61)
>     org.apache.phoenix.hbase.index.parallel.BaseTaskRunner.submit(BaseTaskRunner.java:58)
>     org.apache.phoenix.hbase.index.parallel.BaseTaskRunner.submitUninterruptible(BaseTaskRunner.java:99)
>     org.apache.phoenix.hbase.index.builder.IndexBuildManager.getIndexUpdate(IndexBuildManager.java:144)
>     org.apache.phoenix.hbase.index.Indexer.preBatchMutateWithExceptions(Indexer.java:324)
> Thread 169 (B.DefaultRpcServer.handler=66,queue=6,port=60020):
> {code}
> [~jamestaylor]



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