[jboss-jira] [JBoss JIRA] (WFLY-2336) Decreasing max-threads on a unbounded queueless executor generates IllegalArgumentException

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-2336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923650#comment-12923650 ] 

RH Bugzilla Integration commented on WFLY-2336:
-----------------------------------------------

Ladislav Thon <lthon at redhat.com> changed the Status of [bug 1021077|https://bugzilla.redhat.com/show_bug.cgi?id=1021077] from ON_QA to VERIFIED
                
> Decreasing max-threads on a unbounded queueless executor generates IllegalArgumentException
> -------------------------------------------------------------------------------------------
>
>                 Key: WFLY-2336
>                 URL: https://issues.jboss.org/browse/WFLY-2336
>             Project: WildFly
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 8.0.0.Beta1
>            Reporter: Aaron Ogburn
>            Priority: Minor
>             Fix For: 8.0.0.CR1
>
>
> Create an unbounded queueless executor
> <unbounded-queue-thread-pool name="uq-thread-pool">
> <max-threads count="350"/>
> <keepalive-time time="5" unit="minutes"/>
> </unbounded-queue-thread-pool>
> Modifying max-threads fails:
> /subsystem=threads/unbounded-queue-thread-pool=uq-thread-pool:write-attribute(name=max-threads,value=300)
> {
>     "outcome" => "failed",
>     "failure-description" => "JBAS014749: Operation handler failed: null",
>     "rolled-back" => true
> }
> ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 1) JBAS014612: Operation ("write-attribute") failed - address: ([
>     ("subsystem" => "threads"),
>     ("unbounded-queue-thread-pool" => "uq-thread-pool")
> ]): java.lang.IllegalArgumentException
> 	at java.util.concurrent.ThreadPoolExecutor.setMaximumPoolSize(ThreadPoolExecutor.java:1620) [rt.jar:1.7.0]
> 	at org.jboss.threads.JBossThreadPoolExecutor.setMaxThreads(JBossThreadPoolExecutor.java:95) [jboss-threads-2.1.1.Final.jar:2.1.1.Final]
> 	at org.jboss.as.threads.ManagedJBossThreadPoolExecutorService.setMaxThreads(ManagedJBossThreadPoolExecutorService.java:86)
> 	at org.jboss.as.threads.UnboundedQueueThreadPoolService.setMaxThreads(UnboundedQueueThreadPoolService.java:91)
> The core pool size needs to be adjusted in line with the max pool size and in the right order to avoid that since max threads can't be less than core threads.

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