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Posted to dev@mina.apache.org by "Christian Schwarz (JIRA)" <ji...@apache.org> on 2011/04/05 10:14:06 UTC
[jira] [Commented] (DIRMINA-653) IoSession.write not thread-safe?
Loosing messages under heavy multi-threaded write on same session.
[ https://issues.apache.org/jira/browse/DIRMINA-653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13015801#comment-13015801 ]
Christian Schwarz commented on DIRMINA-653:
-------------------------------------------
Hi Yannick,
thanks for pointing out how to fix the CompressionFilter datarace !
-> For the record : This Bug still exists in 2.0.2 !
Thanks Chris
> IoSession.write not thread-safe? Loosing messages under heavy multi-threaded write on same session.
> ---------------------------------------------------------------------------------------------------
>
> Key: DIRMINA-653
> URL: https://issues.apache.org/jira/browse/DIRMINA-653
> Project: MINA
> Issue Type: Bug
> Components: Core, Filter
> Affects Versions: 2.0.0-M4
> Environment: Windows Vista 64-bit
> Reporter: Mauritz Lovgren
> Fix For: 2.0.0-M5
>
>
> I am writing a stress-test that tests multi-thread safetyness of our stateless encoder / decoder under heavy load and I am observing that messages are silently lost during session.write(Object), (the lost messages do not seem to reach the underlying socket buffer at all).
> I am using one encoder / decoder that is stateless. No executor filter, only the filter codec and a basic io handler.
> Synchronizing on the session.write makes the problem go away;
> synchronized (session)
> {
> future = session.write(message);
> }
> Do I really have to synchronize on the session to solve this issue?
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