[jira] [Created] (HDDS-17120) DBCheckpointServlet keeps a stale DBStore after OM installs a checkpoint

["Siyao Meng (Jira)" <ji...@apache.org>]

Siyao Meng created HDDS-17120:
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             Summary: DBCheckpointServlet keeps a stale DBStore after OM installs a checkpoint
                 Key: HDDS-17120
                 URL: https://issues.apache.org/jira/browse/HDDS-17120
             Project: Apache Ozone
          Issue Type: Bug
          Components: Ozone Manager
            Reporter: Siyao Meng


DBCheckpointServlet caches the DBStore in initialize() on its first request (DBCheckpointServlet.java:88). After a follower OM installs a checkpoint, reloadOMState replaces the metadata manager and its store, but OMDBCheckpointServlet and OMDBCheckpointServletInodeBasedXfer still call getDbStore() (e.g. OMDBCheckpointServlet.java:281, 286), so they likely get the old, closed store while the lock and snapshot directory come from the new one. SCM restarts its metadata store during snapshot install in a similar way.

Found by code reading; not reproduced yet.



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