[jboss-jira] [JBoss JIRA] (JGRP-2396) increasing networkdata, cpu and heap

[Bela Ban (Jira)]

    [ https://issues.jboss.org/browse/JGRP-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811081#comment-13811081 ] 

Bela Ban commented on JGRP-2396:
--------------------------------

It's hard to compare JGroups/Infinispan/Keycloak to Hazelcast in terms of memory use, and also - if there is a problem - which component is responsible for it.
So I guess it wasn't JGroups after all, but perhaps Keycloak. Regardless of whether this works now, I still suggest use JFR to find out what's going on, and perhaps look at the deltas before and after the upgrade.
Wrt memory and CPU use: JGroups can be tuned infinitely! :-)
Cheers,

> increasing networkdata, cpu and heap
> ------------------------------------
>
>                 Key: JGRP-2396
>                 URL: https://issues.jboss.org/browse/JGRP-2396
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 4.0.19
>            Reporter: Rob van der Boom
>            Assignee: Bela Ban
>            Priority: Major
>         Attachments: Schermafbeelding 2019-11-08 om 15.43.04.png, Schermafbeelding 2019-11-08 om 15.44.52.png, Schermafbeelding 2019-11-08 om 16.00.48.png, jstack-production-pod0.dump, standalone-ha.xml
>
>
> hey,
> we have an keycloak (sso) setup, version 7.0.1 running in kubernetes - aws.
> Its build on wildfly 17, infinispan 9.4 and jgroups 4.0.19.
> We have 3 pods running in standalone-ha with cache setup on distribution (all 3 nodes - so equivalent to replication)
> ISSUE:
> We see a slowly growing of networkstatistics, heap and cpu, while the number of sessions in keycloak (cached) remain almost stable.
> The cpu growth is caused by the TQbundler process, which explaines the networkdata growth. It looks like this is causing also a memory leakage.. 
> every 5 days we have to restart the pods and then every resets to a very low level including the heap. this while all sessions are still valid and cached.
> The only issue i could find maybe related to this is:
> https://issues.jboss.org/browse/JGRP-2382?jql=project%20%3D%20JGRP%20AND%20text%20~%20leak
> Could this be the same issue and does it also cause increasing network and cpu (since that is why we have to restart, the heap has much space left !).
> And if so how does this issue continue since for us its a major issue.
> We als had this issue already in keycloak 5 (wildfly 15), thats why we upgraded to the latest available version.



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