Eugene Koifman created HIVE-7256:
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Summary: HiveTxnManager should be stateless
Key: HIVE-7256
URL: https://issues.apache.org/jira/browse/HIVE-7256
Project: Hive
Issue Type: Bug
Components: Locking
Affects Versions: 0.13.1
Reporter: Eugene Koifman
Assignee: Eugene Koifman
In order to integrate HCat with Hive ACID, we should be able to create an
instance of HiveTxnManager and use it to acquire locks, and release locks from
a different instance of HiveTxnManager.
One use case where this shows up is when a job using HCat is retried, since
calls to TxnManager are made from the jobs OutputCommitter.
Another, is HCatReader/Writer. For example, TestReaderWriter, calls setupJob()
from one instance of OutputCommitterContainer and commitJob() from another
instance. The 2nd case is perhaps better solved by ensuring there is only 1
instance of OutputCommitterContainer.
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