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Type:
Bug
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Status: Resolved
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Priority:
Normal
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Resolution: Fixed
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Fix Version/s: 3.11.1
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Component/s: Legacy/Core
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Labels:None
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Environment:
Cassandra 3.11.0, Netty 4.0.44.Final, OpenJDK 8u141-b15
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Severity:Normal
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 fixes the issue.