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https://issues.apache.org/jira/browse/ACCUMULO-1062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578652#comment-13578652
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Hudson commented on ACCUMULO-1062:
----------------------------------
Integrated in Accumulo-1.4.x #275 (See
[https://builds.apache.org/job/Accumulo-1.4.x/275/])
ACCUMULO-1062 2000 threads is a little too much for a unit test; merge to
1.4 branch (Revision 1446291)
Result = SUCCESS
ecn :
Files :
* /accumulo/branches/1.4
* /accumulo/branches/1.4/src
* /accumulo/branches/1.4/src/core
* /accumulo/branches/1.4/src/server
* /accumulo/branches/1.4/src/server/src
*
/accumulo/branches/1.4/src/server/src/test/java/org/apache/accumulo/server/tabletserver/InMemoryMapTest.java
> large numbers of threads make in-memory updates slow
> ----------------------------------------------------
>
> Key: ACCUMULO-1062
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1062
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.4.2
> Environment: testing on large clusters
> Reporter: Eric Newton
> Assignee: Keith Turner
> Priority: Critical
> Fix For: 1.5.0, 1.4.3
>
> Attachments: SlamTest.java
>
>
> Using hundreds of ingest programs, each running several batch writers, ingest
> would eventually become slow. Testing (attached) proved that performance
> fell off as the number of threads increased.
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