[jboss-jira] [JBoss JIRA] (DROOLS-4927) Memory leak in PrometheusKieServerExtension

[Edson Tirelli (Jira)]

    [ https://issues.redhat.com/browse/DROOLS-4927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13953530#comment-13953530 ] 

Edson Tirelli commented on DROOLS-4927:
---------------------------------------

[~manaRH] : [~mfusco] and [~tkobayashi] will look into it.

> Memory leak in PrometheusKieServerExtension
> -------------------------------------------
>
>                 Key: DROOLS-4927
>                 URL: https://issues.redhat.com/browse/DROOLS-4927
>             Project: Drools
>          Issue Type: Bug
>          Components: kie server
>    Affects Versions: 7.31.0.Final
>            Reporter: Karel Suta
>            Assignee: Mario Fusco
>            Priority: Major
>
> Prometheus Kie server extensions contains support for custom metrics [1].
> These metrics are added when a new container is called [2].
> However when container is removed then these metrics stay active. Agenda event listener has container instance as a HashMap key. This container instance is quite big, causing memory leak.
> [1] https://github.com/kiegroup/droolsjbpm-integration/blob/master/kie-server-parent/kie-server-services/kie-server-services-prometheus/src/main/java/org/kie/server/services/prometheus/PrometheusCustomMetricsSupport.java
> [2] https://github.com/kiegroup/droolsjbpm-integration/blob/master/kie-server-parent/kie-server-services/kie-server-services-prometheus/src/main/java/org/kie/server/services/prometheus/PrometheusCustomMetricsSupport.java#L78-L94



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