Kezhu Wang created ZOOKEEPER-4881:
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Summary: Support non blocking ZooKeeper::close
Key: ZOOKEEPER-4881
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4881
Project: ZooKeeper
Issue Type: New Feature
Reporter: Kezhu Wang
{{ZooKeeper::close}} is synchronous, it waits until {{OpCode.closeSession}}
returned. I think it would be useful to support background closing to avoid
block caller, just like `close(2)` for socket. We probably could use
{{ZooKeeperBuilder}} from ZOOKEEPER-4697 to manually enable it. This way we
would not surprise anyone just like `SO_LINGER` for socket.
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