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https://issues.apache.org/jira/browse/AMQ-5518?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14277157#comment-14277157
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Timothy Bish commented on AMQ-5518:
-----------------------------------
You should have a look at the broker log to see what's happening there, and
also check if there any known issues in your Java runtime for things like this.
> Producer hangs on socketWrite0 on Solaris
> -----------------------------------------
>
> Key: AMQ-5518
> URL: https://issues.apache.org/jira/browse/AMQ-5518
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.10.0
> Environment: cat /etc/release
> Oracle Solaris 10 9/10 s10x_u9wos_14a X86
> uname -a
> SunOS kenvng 5.10 Generic_142910-17 i86pc i386 i86pc
> Reporter: Pawel Remiszewski
> Attachments: SampleProgram.java, activemqtest.hang.stack.txt
>
>
> When multiple producers are writing in request-response model (using topics),
> application hang (deadlock) is visible on Solaris platform (see Environment
> for details). Tests on Linux (Ubuntu) show no issues.
> Adding soWriteTimeout in broker settings can be used as workaround, because
> the whole connection is broken when timeout exceeds.
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