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Posted to dev@tomcat.apache.org by bu...@apache.org on 2011/09/16 15:52:39 UTC
DO NOT REPLY [Bug 51835] New: Sessions never closes
https://issues.apache.org/bugzilla/show_bug.cgi?id=51835
Bug #: 51835
Summary: Sessions never closes
Product: Tomcat 6
Version: 6.0.29
Platform: Sun
OS/Version: Solaris
Status: NEW
Severity: major
Priority: P2
Component: Catalina
AssignedTo: dev@tomcat.apache.org
ReportedBy: integration@voxmobili.com
Classification: Unclassified
Hello everyone,
We are facing non-closed sessions in our application, leading to heapspace
reach.
On our live environment, we have more than 300 sessions opened at the
same time. We have added logs telling us when a session is destroyed by
Tomcat for any cases.
We can see some correctly ended sessions with this session destroy.
We also see sessions which ended in timeout due inactivity with this session
destroy.
But we have sessions where we see neither timeout, nor session destroy in logs.
How come Tomcat could possibly never kill those sessions?
Attribution:
Version Tomcat 6.0.29
Component session listener
Environment details:
Platform and OS SunOS 5.10 Generic_142901-11 i86pc i386 i86pc
Java version 1.6.0_25-b06
Web Server Apache/2.2.16 + mod_jk/1.2.26
Footnotes:
[1] we have set this in our webapp's web.
<web-app>
[...]
<session-config>
<session-timeout>2</session-timeout>
</session-config>
</web-app>
Thank you in advance,
Best regards,
--
Voxmobili
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DO NOT REPLY [Bug 51835] Sessions never close
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51835
Voxmobili <in...@voxmobili.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Sessions never closes |Sessions never close
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DO NOT REPLY [Bug 51835] Sessions never close
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51835
--- Comment #1 from Konstantin Kolinko <kn...@gmail.com> 2011-09-16 16:27:14 UTC ---
1. Are you sure that it is not a bug in your logging? You are not telling much
about it.
E.g. maybe you are not taking into account that session id changes during
authentication (since 6.0.21).
2. Note also, that expired sessions are not evicted immediately upon expiring,
but only when background processing thread finds them. See
"backgroundProcessorDelay" property in Configuration Reference. The default
delay is 10 seconds. Though I think that the thread might be stuck somewhere,
as it performs other tasks as well (e.g. autodeployment).
3. You have to find a proof that there indeed are sessions that have "last
accessed time" more than (your configuration + interval between background
processing runs) ago. The manager webapp can be used to view the list of active
sessions.
It would be much better if you'd find how to reproduce this.
Note, that "Bugzilla is not a support forum". The questions on how to diagnose
something must be directed to the users@ list.
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DO NOT REPLY [Bug 51835] Sessions never close
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51835
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #2 from Mark Thomas <ma...@apache.org> 2011-09-21 11:48:35 UTC ---
Session expiration is tested as part of the TCK that every Tomcat release goes
through including 6.0.29. This looks to be an application issue rather than a
Tomcat issue and - as Konstantin points out - the users list is the place to
seek help.
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