Ruben Van Wanzeele created HBASE-28456:
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Summary: HBase Restore restores old data if data for the same
timestamp is in different hfiles
Key: HBASE-28456
URL: https://issues.apache.org/jira/browse/HBASE-28456
Project: HBase
Issue Type: Bug
Components: backup&restore
Affects Versions: 2.6.0, 3.0.0
Reporter: Ruben Van Wanzeele
Attachments: ChangesOnHFilesOnSameTimestampAreNotCorrectlyRestored.java
The restore brings back 'old' data when executing restore.
It feels like the hfile sequence id is not respected during the restore.
See testing code attached. The workaround solution is to trigger major
compaction before doing the backup (not really feasible for daily backups)
We didn't investigate this yet, but this might also impact the merge of
multiple incremental backups (since that follows a similar code path merging
hfiles).
This currently blocks our support for HBase backup and restore.
Willing to participate in a solution if necessary.
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