[jira] [Created] (HIVE-15145) Alter partition and fs renameDir should happen in same transaction

["Mohit Sabharwal (JIRA)" <ji...@apache.org>]

Mohit Sabharwal created HIVE-15145:
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             Summary: Alter partition and fs renameDir should happen in same transaction
                 Key: HIVE-15145
                 URL: https://issues.apache.org/jira/browse/HIVE-15145
             Project: Hive
          Issue Type: Improvement
            Reporter: Mohit Sabharwal
            Assignee: Mohit Sabharwal


In HiveAlterTable#alterPartition, the rename partition logic is as follows:
- open txn
- db.alterPartition(old, new)
- commit txn
- fs.mkdirs
- if mkdirs fails
-- open txn
-- db.alterPartition(new, old)
-- commit txn

Instead, both db.alterPartition(old, new) and fs.mkdirs can be moved under a single transaction.

Currently, if the second db.alterPartition(new, old) fails, we have a partition metadata committed without corresponding partition directory.



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