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Posted to dev@directory.apache.org by "Emmanuel Lecharny (JIRA)" <ji...@apache.org> on 2009/07/22 00:23:14 UTC
[jira] Commented: (DIRSERVER-644) Memory Leak in Persistent search
?
[ https://issues.apache.org/jira/browse/DIRSERVER-644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733855#action_12733855 ]
Emmanuel Lecharny commented on DIRSERVER-644:
---------------------------------------------
The initial issue has been fixed when we moved to cursor implementation.
> Memory Leak in Persistent search ?
> ----------------------------------
>
> Key: DIRSERVER-644
> URL: https://issues.apache.org/jira/browse/DIRSERVER-644
> Project: Directory ApacheDS
> Issue Type: Bug
> Components: core
> Affects Versions: 1.5.4, 1.0-RC3
> Reporter: Emmanuel Lecharny
> Assignee: Emmanuel Lecharny
> Priority: Blocker
> Fix For: 1.5.5
>
> Attachments: SearchTest.java
>
>
> After having profiled memory, it seems we have a memory leak in SessionRegistry.
> A little test (attached) does a search N times for N threads, and for each search, a OutstandingRequest is attached to the session. After a few thousands of search we fall in OOM. I've put some trace in those methods :
> SessionRegistry.addOutstandingRequest
> and
> SessionRegistry.removeOutstandingRequest
> Session Released
> addOutstandingRequest 2
> addOutstandingRequest 3
> addOutstandingRequest 4
> ... ( 100 requests)
> addOutstandingRequest 99
> addOutstandingRequest 100
> addOutstandingRequest 101
> remove session
> The SessionRegistry.removeOutstandingRequest is never called, except if an exception is raised (NamingException).
> It may be on purpose ( persistent search), but we can't assume the server will be able to hold as many OutstandingRequest as we have search requests - or entries -.
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