Amichai Rothman created ARIES-2200:
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Summary: ZooKeeper discovery concurrency issue may close the wrong
client
Key: ARIES-2200
URL: https://issues.apache.org/jira/browse/ARIES-2200
Project: Aries
Issue Type: New Feature
Components: Remote Service Admin
Affects Versions: rsa-1.16.1
Reporter: Amichai Rothman
The ZooKeeper discovery's ClientManager.stop() method calls
zkClient.close() asynchronously, where zkClient is an instance field. However,
by the time the async task runs, this reference could have already been
replaced with a new client instance, e.g. in ClientManager.process handling of
expired sessions which calls stop and immediately afterwards creates a new
client. In such a case the close() call could inadvertently be invoked on the
new client thus making it unusable, while leaving the old client unclosed.
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