Thomas Graves created SPARK-3632:
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Summary: ConnectionManager can run out of receive threads with
authentication on
Key: SPARK-3632
URL: https://issues.apache.org/jira/browse/SPARK-3632
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.1.0
Reporter: Thomas Graves
Assignee: Thomas Graves
Priority: Critical
If you turn authentication on and you are using a lot of executors. There is a
chance that all the of the threads in the handleMessageExecutor could be
waiting to send a message because they are blocked waiting on authentication to
happen. This can cause a temporary deadlock until the connection times out.
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