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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2014/12/18 21:54:13 UTC
[jira] [Updated] (SPARK-3607) ConnectionManager threads.max configs
on the thread pools don't work
[ https://issues.apache.org/jira/browse/SPARK-3607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Reynold Xin updated SPARK-3607:
-------------------------------
Assignee: Ilya Ganelin
> ConnectionManager threads.max configs on the thread pools don't work
> --------------------------------------------------------------------
>
> Key: SPARK-3607
> URL: https://issues.apache.org/jira/browse/SPARK-3607
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: Thomas Graves
> Assignee: Ilya Ganelin
> Priority: Minor
> Fix For: 1.3.0
>
>
> In the ConnectionManager we have a bunch of thread pools. They have settings for the maximum number of threads for each Threadpool (like spark.core.connection.handler.threads.max).
> Those configs don't work because its using a unbounded queue. From the threadpoolexecutor javadoc page: no more than corePoolSize threads will ever be created. (And the value of the maximumPoolSize therefore doesn't have any effect.)
> luckily this doesn't matter to much as you can work around it by just increasing the minimum like spark.core.connection.handler.threads.min.
> These configs aren't documented either so its more of an internal thing when someone is reading the code.
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