[jira] [Commented] (GEODE-8799) Increase default OperationExecutors#MAX_THREADS and MAX_PR_THREADS

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

    [ https://issues.apache.org/jira/browse/GEODE-8799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259162#comment-17259162 ] 

ASF GitHub Bot commented on GEODE-8799:
---------------------------------------

DonalEvans commented on a change in pull request #5862:
URL: https://github.com/apache/geode/pull/5862#discussion_r552148174



##########
File path: geode-core/src/main/java/org/apache/geode/distributed/internal/OperationExecutors.java
##########
@@ -26,7 +26,7 @@
  */
 public interface OperationExecutors {
   int MAX_THREADS =
-      Integer.getInteger("DistributionManager.MAX_THREADS", 100);
+      Integer.getInteger("DistributionManager.MAX_THREADS", 300);

Review comment:
       Having talked to some other people with more hands-on experience with hitting the limit currently set by `MAX_THREADS`, a value of 1000 was decided to be more appropriate. The PR has been updated to reflect this.




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> Increase default OperationExecutors#MAX_THREADS and MAX_PR_THREADS
> ------------------------------------------------------------------
>
>                 Key: GEODE-8799
>                 URL: https://issues.apache.org/jira/browse/GEODE-8799
>             Project: Geode
>          Issue Type: Improvement
>    Affects Versions: 1.14.0
>            Reporter: Donal Evans
>            Assignee: Donal Evans
>            Priority: Major
>              Labels: pull-request-available
>
> Similar to GEODE-8780, the default maximum number of pooled message processor and partitioned region message processor threads are low enough that they can cause performance degradation and should be increased.
> The current default value for {{MAX_THREADS}} is 100, and the current default value for {{MAX_PR_THREADS}} is 
> {{Math.max(Runtime.getRuntime().availableProcessors() * 4, 16)}}
> The proposed new values are 1000 and 
> {{Math.max(Runtime.getRuntime().availableProcessors() * 32, 200)}}



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