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https://issues.apache.org/jira/browse/CASSANDRA-18725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Rohrer updated CASSANDRA-18725:
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Test and Documentation Plan: Tests are updated in the dtest JMXFeatureTest
and JMXGetterCheckTest for each branch.
Status: Patch Available (was: Open)
See attached Github PRs for patches for each branch - will attach CircleCI runs
once they are completed.
> IsolatedJMX should not release all TCPEndpoints on instance shutdown
> --------------------------------------------------------------------
>
> Key: CASSANDRA-18725
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18725
> Project: Cassandra
> Issue Type: Improvement
> Components: Test/dtest/java
> Reporter: Doug Rohrer
> Assignee: Doug Rohrer
> Priority: Normal
> Fix For: 3.11.x, 4.0, 4.1.x, 5.0, 5.1
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> In the original implementation of the JMX feature, we fixed some memory leaks
> by clearing some internal state in Java’s TCPEndpoint. However, that
> implementation was overly aggressive and cleared the whole map, vs. just
> removing the endpoints created by the individual instances. This causes
> issues when you remove a node from the cluster (as all of the endpoints are
> cleared, not just the ones in use by that instance).
>
> In stead, we should check if the endpoint was created by the instance in
> question and only remove it if it was.
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