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From "Ufuk Celebi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4814) Remove extra storage location for externalized checkpoint metadata
Date Wed, 12 Oct 2016 16:18:20 GMT
Ufuk Celebi created FLINK-4814:
----------------------------------

             Summary: Remove extra storage location for externalized checkpoint metadata
                 Key: FLINK-4814
                 URL: https://issues.apache.org/jira/browse/FLINK-4814
             Project: Flink
          Issue Type: Improvement
            Reporter: Ufuk Celebi


Follow up for FLINK-4512.

Store checkpoint meta data in checkpoint directory.  That makes it simpler for users to track
and clean up checkpoints manually, if they want to retain externalized checkpoints across
cancellations and terminal failures.

Every state backend needs to be able to provide a storage location for the checkpoint metadata.
The memory state backend would hence not work with externalized checkpoints, unless one sets
explicitly a parameter `setExternalizedCheckpointsLocation(uri)`.




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