Daryn Sharp created HADOOP-14912:
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Summary: FairCallQueue may defer servicing calls
Key: HADOOP-14912
URL: https://issues.apache.org/jira/browse/HADOOP-14912
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 2.8.2
Reporter: Daryn Sharp
Assignee: Daryn Sharp
HADOOP-14033 switched a lock to a semaphore to allow concurrency for producers
& consumers to the underlying queues. A race condition was created that may
cause a consumer to acquire a permit but not extract an element, leaving the
semaphore with fewer permits than queued elements. This causes a minimum
number of calls to always be present in the call queue.
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