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https://issues.apache.org/jira/browse/HBASE-13460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496562#comment-14496562
]
Hudson commented on HBASE-13460:
--------------------------------
SUCCESS: Integrated in HBase-1.1 #396 (See
[https://builds.apache.org/job/HBase-1.1/396/])
HBASE-13460. Revise the MetaLookupPool executor-related defaults (introduced in
HBASE-13036). (ddas: rev fe8658ce359b4e26cbb996115e2d843a7ef66889)
*
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionManager.java
> Revise the MetaLookupPool executor-related defaults (introduced in
> HBASE-13036)
> -------------------------------------------------------------------------------
>
> Key: HBASE-13460
> URL: https://issues.apache.org/jira/browse/HBASE-13460
> Project: HBase
> Issue Type: Bug
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 1.1.0
>
> Attachments: 13460-master-1.txt, 13460-master-2.txt,
> 13460-master-3.txt
>
>
> The value of the max threads, max tasks, etc. can be improved to not
> unnecessarily reject tasks. In one of our internal tests, we saw tasks
> getting rejected (with the defaults that is currently there in the unpatched
> code):
> {noformat}
> 2015-04-09
> 12:36:34,111|beaver.machine|INFO|15134|140028818736896|MainThread|Caused by:
> java.lang.RuntimeException: java.util.concurrent.RejectedExecutionException:
> Task
> org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture@6658c97b
> rejected from
> java.util.concurrent.ThreadPoolExecutor@5a06eeee[Running, pool size = 3,
> active threads = 3, queued tasks = 300, completed tasks = 0]
> 2015-04-09
> 12:36:34,111|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:208)
> 2015-04-09
> 12:36:34,112|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.ClientSmallReversedScanner.next(ClientSmallReversedScanner.java:145)
> 2015-04-09
> 12:36:34,112|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1246)
> 2015-04-09
> 12:36:34,112|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1152)
> 2015-04-09
> 12:36:34,113|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:370)
> 2015-04-09
> 12:36:34,113|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:321)
> 2015-04-09
> 12:36:34,113|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.BufferedMutatorImpl.backgroundFlushCommits(BufferedMutatorImpl.java:206)
> 2015-04-09
> 12:36:34,113|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.BufferedMutatorImpl.flush(BufferedMutatorImpl.java:183)
> 2015-04-09
> 12:36:34,114|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1414)
> 2015-04-09
> 12:36:34,114|beaver.machine|INFO|15134|140028818736896|MainThread|at
> org.apache.hadoop.hbase.client.HTable.put(HTable.java:1010)
> {noformat}
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