Aihua Xu created HIVE-14239:
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Summary: Change OperationManager to serve each session and make it
threadsafe
Key: HIVE-14239
URL: https://issues.apache.org/jira/browse/HIVE-14239
Project: Hive
Issue Type: Sub-task
Components: HiveServer2
Affects Versions: 2.0.1
Reporter: Aihua Xu
Assignee: Aihua Xu
Currently OperationManager is designed to hold all the operations from all the
sessions. It will cause the functions to unnecessarily sync between the
operations across the sessions. And also there are some functions are not
threadsafe which could be the cause for invalid OperationHandle.
Plan to change OperationManager to just serve one session and make it a helper
class for HiveSession rather than a service which doesn't seem to be needed.
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