[jira] [Commented] (DRILL-5994) Cannot start web server on a machine with more than 200 cores

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-5994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16308159#comment-16308159 ] 

ASF GitHub Bot commented on DRILL-5994:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/drill/pull/1069


> Cannot start web server on a machine with more than 200 cores
> -------------------------------------------------------------
>
>                 Key: DRILL-5994
>                 URL: https://issues.apache.org/jira/browse/DRILL-5994
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.11.0
>            Reporter: Mitchel Labonte
>            Priority: Minor
>              Labels: doc-impacting, ready-to-commit
>             Fix For: 1.13.0
>
>
> If the WebServer is launched on a machine that has more than 200 cores, you get the following stack trace:
> {noformat}
> Exception in thread "main" org.apache.drill.exec.exception.DrillStartupException: Failure during initial startup of Drillbit:
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:313)
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:289)
> at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:285)
> Caused by: java.lang.IllegalStateException: Insufficient max threads in ThreadPool: max=200 < needed=206
> at org.eclipse.jetty.server.Server.doStart(Server.java:321)
> at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
> at org.eclipse.drill.exec.server.rest.WebServer.start(WebServer.java:197)
> at org.eclipse.drill.exec.server.Drillbit.run(Drillbit.java:140)
> at org.eclipse.drill.exec.server.Drillbit.start(Drillbit.java:309)
> ... 2 more
> {noformat}
> The cause of this is that in the WebServer start method, a Server instance is created with the default constructor, which initializes a QueuedThreadPool with a default maxThreads value of 200, and there is no way to configure this value.
> *For documentation*
> New config option - drill.exec.web_server.thread_pool_max.



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