Hernan Romer created HBASE-30054:
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Summary: Deleting a FAILED backup cascades and deletes subsequent
COMPLETE backups
Key: HBASE-30054
URL: https://issues.apache.org/jira/browse/HBASE-30054
Project: HBase
Issue Type: Bug
Components: backup&restore
Reporter: Hernan Romer
When a backup fails, failBackup restores the backup system table from a
snapshot taken before the backup started. This rolls back all state changes
(WAL timestamps, etc.), so the FAILED backup was never part of the backup
chain. No subsequent backup depends on it.
However, BackupAdminImpl.deleteBackup unconditionally runs cascade logic via
getAffectedBackupSessions, which finds all incremental backups newer than the
deleted backup (up to the next full). When the deleted backup is FAILED, this
cascade incorrectly identifies subsequent COMPLETE incrementals as "affected"
and deletes them via removeTableFromBackupImage.
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