Devesh Kumar Singh created HDDS-16845:
-----------------------------------------
Summary: Recon delta updates to om.db are never synced and ignore
configured write options
Key: HDDS-16845
URL: https://issues.apache.org/jira/browse/HDDS-16845
Project: Apache Ozone
Issue Type: Task
Components: Ozone Recon
Reporter: Devesh Kumar Singh
Assignee: Devesh Kumar Singh
Recon applies OM delta updates to its local om.db using new RocksDB write
options that disable sync and bypass the configured store write options.
Therefore, hadoop.hdds.db.rocksdb.writeoption.sync=true has no effect.
After a host crash, om.db and the derived data in recon.db can recover to
different sequence numbers. Recon may then replay already-processed events or
skip missing events, causing permanent over-counting or under-counting.
The fix should persist each Recon task's processing cursor atomically with its
derived data in recon.db, allowing startup recovery to detect inconsistencies.
At minimum, delta writes to om.db must honor the configured RocksDB write
options.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
