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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13460) Revise the MetaLookupPool executor-related defaults (introduced in HBASE-13036)
Date Wed, 15 Apr 2015 17:29:59 GMT

    [ 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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