Eric Evans created CASSANDRA-13754:
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Summary: FastThreadLocal leaks memory
Key: CASSANDRA-13754
URL: https://issues.apache.org/jira/browse/CASSANDRA-13754
Project: Cassandra
Issue Type: Bug
Components: Core
Environment: OpenJDK 8u141-b15
Reporter: Eric Evans
Fix For: 3.11.1
After a chronic bout of {{OutOfMemoryError}} in our development environment, a
heap analysis is showing that more than 10G of our 12G heaps are consumed by
the {{threadLocals}} members (instances of {{java.lang.ThreadLocalMap}}) of
various {{io.netty.util.concurrent.FastThreadLocalThread}} instances.
Reverting
[cecbe17|https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=commit;h=cecbe17e3eafc052acc13950494f7dddf026aa54]
fixes the issue.
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