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https://issues.apache.org/jira/browse/HBASE-29895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HBASE-29895:
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Labels: pull-request-available (was: )
> 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&restore
> Reporter: Hernan Romer
> Priority: Major
> Labels: pull-request-available
>
> 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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