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https://issues.apache.org/jira/browse/RATIS-925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17758473#comment-17758473
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Sammi Chen commented on RATIS-925:
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The issue is already fixed now. The RaftServerImpl#raftServerMetrics is removed
from the METRICS map during RaftServerImpl close.
> Memory leak of RaftServerImpl for no remove from static
> RaftServerMetrics::metricsMap
> -------------------------------------------------------------------------------------
>
> Key: RATIS-925
> URL: https://issues.apache.org/jira/browse/RATIS-925
> Project: Ratis
> Issue Type: Sub-task
> Reporter: runzhiwang
> Assignee: runzhiwang
> Priority: Major
> Attachments: screenshot-1.png, screenshot-2.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> *What's the problem ?*
> As the image shows, there are 2066 instances of RaftServerImpl, most of them
> are Closed, and should be GC, but actually not.
> !screenshot-1.png!
> *What's the reason ?*
> You can find from the image 2040 RaftServerImpl were held by
> RaftServerMetrics::metricsMap which is a staic map
> !screenshot-2.png!
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