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Posted to issues@hbase.apache.org by "Hernan Romer (Jira)" <ji...@apache.org> on 2026/02/12 16:27:00 UTC

[jira] [Created] (HBASE-29895) BackupBoundaries global coverage can allow premature WAL deletion when backup roots have different host coverage

Hernan Romer created HBASE-29895:
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             Summary: BackupBoundaries global coverage can allow premature WAL deletion when backup roots have different host coverage
                 Key: HBASE-29895
                 URL: https://issues.apache.org/jira/browse/HBASE-29895
             Project: HBase
          Issue Type: Bug
          Components: backup&amp;restore
            Reporter: Hernan Romer


BackupBoundaries is a global, cluster-level mechanism that aggregates WAL cleanup boundaries from all backup roots. When different backup roots have backed up different sets of hosts, the current implementation can allow deletion of WAL files that may still be needed by some backup roots.

 

WALs should be protected if they might be needed by ANY backup root for future incremental backups, even if another root has already backed up that host at a later timestamp



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