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https://issues.apache.org/jira/browse/IGNITE-9658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16632127#comment-16632127
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Alexei Scherbakov commented on IGNITE-9658:
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[~ivandasch],

Your implementation has memory leak issues.

I've made fixes in separate branch ignite-9658-2, PR [1], TC [2]

If you don't mind I'll finish the ticket.

[1] https://github.com/apache/ignite/pull/4874
[2] 
https://ci.ignite.apache.org/viewQueued.html?itemId=1963202&tab=queuedBuildOverviewTab

> Add ability to disable memory deallocation on deactivation.
> -----------------------------------------------------------
>
>                 Key: IGNITE-9658
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9658
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Ivan Daschinskiy
>            Assignee: Alexei Scherbakov
>            Priority: Major
>             Fix For: 2.8
>
>
> Currently, in some systems (i.e. RHEL 7.4), we can see, that during massive 
> UNSAFE.freeMemory process freezes. This behaviour can lead to SEGMENTATION of 
> node, especcially when ZookeeperDiscoverySPI is used. There should be an 
> abillity to disable memory deallocation during deactivation of cluster.



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