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https://issues.apache.org/jira/browse/HBASE-28833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dieter De Paepe resolved HBASE-28833.
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Resolution: Duplicate
Duplicate of HBASE-28705
> BackupLogCleaner unsafe for multi-root backups
> ----------------------------------------------
>
> Key: HBASE-28833
> URL: https://issues.apache.org/jira/browse/HBASE-28833
> Project: HBase
> Issue Type: Bug
> Components: backup&restore
> Reporter: Dieter De Paepe
> Priority: Critical
>
> The BackupLogCleaner is responsible for keeping WALs around that are not yet
> backed-up.
> However, it does not keep track of multi-root backups. I.e. if there are 2
> backups roots R1 and R2, where R1 was backed up 1 week ago, and R2 today, the
> WALS needed for R1 could be deleted (= data loss in the R1 backups).
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