[jboss-jira] [JBoss JIRA] (JGRP-2482) Check if the largest thread pool is cluster-size + delta

[Bela Ban (Jira)]

    [ https://issues.redhat.com/browse/JGRP-2482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14136500#comment-14136500 ] 

Bela Ban commented on JGRP-2482:
--------------------------------

When running {{UPerf}} with {{<CLEAR_FLAGS internal="true" oob="true"/>}} (which makes *all* messages regular), then the largest thread pool size is ~5.
This points to {{OOB}} and/or {{INTERNAL}} messages being the culprit: these are forwarded to the thread pool by {{MaxOneThreadPerSender}}, regardless of sender.
Next step: find out what OOB or INTERNAL messages are received (UNICAST3 ACKs?) and see if the high number of these messages is correct.

> Check if the largest thread pool is cluster-size + delta
> --------------------------------------------------------
>
>                 Key: JGRP-2482
>                 URL: https://issues.redhat.com/browse/JGRP-2482
>             Project: JGroups
>          Issue Type: Task
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>            Priority: Major
>             Fix For: 5.0.0.Final
>
>
> When running UPerf in a cluster of 4, we see {{thread_pool_size_largest=39}}. Verify that MaxOneThreadPerSender works as expected: the largest thread pool size should be 4+delta (timer threads, retransmission): ~6.
> It looks as if {{MPerf}} behaves (~6 threads), but {{UPerf}} doesn't: ~26 threads



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