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

[Aaron Ogburn (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-2336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12825117#comment-12825117 ] 

Aaron Ogburn commented on WFLY-2336:
------------------------------------

Merged now upstream so this can be closed.
                
> Decreasing max-threads on a unbounded queuesless 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
>
> 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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