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From "Yotam Madem (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-6825) Performance bottle neck due to synchronize block on each read
Date Wed, 09 Mar 2016 09:31:40 GMT

    [ https://issues.apache.org/jira/browse/CXF-6825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15186834#comment-15186834
] 

Yotam Madem commented on CXF-6825:
----------------------------------

Just another question,
The tests failures in my pull request build: https://builds.apache.org/job/CXF-Trunk-PR/lastBuild/
Doesn't really seem to be related to my changes... Do you happen to know if those tests are
unstable in general?

> Performance bottle neck due to synchronize block on each read
> -------------------------------------------------------------
>
>                 Key: CXF-6825
>                 URL: https://issues.apache.org/jira/browse/CXF-6825
>             Project: CXF
>          Issue Type: Bug
>          Components: Bus, JAX-RS
>    Affects Versions: 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.2.0, 3.1.6
>         Environment: All environments
>            Reporter: Yotam Madem
>             Fix For: 3.2.0, 3.1.6
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> In our (IBM MobileFirst foundation) performance tests it is possible to see that many
threads are stuck at:
> "LargeThreadPool-thread-1505" daemon prio=10 tid=0x00007f10f020b800 nid=0x31fc waiting
for monitor entry [0x00007f12bfffd000]
>    java.lang.Thread.State: BLOCKED (on object monitor)
> 	at org.apache.cxf.BusFactory.getThreadBusHolder(BusFactory.java:120)
> 	- waiting to lock <0x00000000c6b99020> (a java.util.WeakHashMap)
> 	at org.apache.cxf.BusFactory.getAndSetThreadDefaultBus(BusFactory.java:202)
>  
> (We use version 3.1.0)
> I did a test fix locally and it seems to resolve our problem so I submitted 2 pull requests:
> for 3.1.6: https://github.com/apache/cxf/pull/119
> for 3.2.0: https://github.com/apache/cxf/pull/120



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