Asynchronous Hooks
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Key: HIVE-2027
URL: https://issues.apache.org/jira/browse/HIVE-2027
Project: Hive
Issue Type: New Feature
Reporter: Ning Zhang
PreHook and PostHook are executed sequentially in the order if they are defined
in hive.exec.pre.hooks and hve.exec.post.hooks. In some cases the sequential
semantics are mandatory, but not for all cases. It would be desirable to define
an AysncHook that extends Hook (similarly for AsyncPreHook and AsyncPostHook)
to asynchronously execute the hooks in a thread pool.
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