[jboss-jira] [JBoss JIRA] (JGRP-541) Thread pools in transport protocols not using daemon threads

[Peter Novak (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12690348#comment-12690348 ] 

Peter Novak commented on JGRP-541:
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In our environment we have similar problem like https://issues.jboss.org/browse/ISPN-1444. It is testing environment where we execute some testing scripts that are using Infinispan as a Cache provider. For this environment we have special configuration, where Infinispan Threads are created as DAEMON threads, because we need to stop the JVM instance, when the executed scripts finished. We don´t want to put the System.exit(0) into scripts, because it avoids the re-usability. We already have configured the Infinispan to support non-daemon threads for this environment, but it does not stop, because it is using the JGroups and there is no possibility to configure the ThreadPools to create Daemons threads for this situation. 

I understand your motivation for "non daemon threads", and I agree, that by default it should be "non daemon", but In my opinion, there are some situations, where this config parameter could be very helpful. We use the jgroups-2.12.1.3.Final.

Please, add some configuration parameter to provide choice for your users, like it is in Infinispan. Thank you.
                
> Thread pools in transport protocols not using daemon threads
> ------------------------------------------------------------
>
>                 Key: JGRP-541
>                 URL: https://issues.jboss.org/browse/JGRP-541
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 2.5
>            Reporter: Paul Ferraro
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 2.5
>
>
> The ThreadFactory used by the ThreadPoolExecutors (for both regular and OOB messages) in org.jgroups.protocols.TP does not create daemon threads.  During runtime the JVM will resist exiting unless the channel is explicitly shutdown.

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