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https://issues.apache.org/jira/browse/SOLR-15706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17443997#comment-17443997
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Don commented on SOLR-15706:
----------------------------
Any idea when 8.11 will be released? This is a pretty serious bug and my team
would like to get the fixed version of Solr, that has this bug fix in it, into
our product ASAP.
> After an incremental back up, the pugeUnused operation incorrectly deletes
> all backed up data
> ---------------------------------------------------------------------------------------------
>
> Key: SOLR-15706
> URL: https://issues.apache.org/jira/browse/SOLR-15706
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Backup/Restore
> Affects Versions: 8.9
> Reporter: Don
> Assignee: Jason Gerlowski
> Priority: Blocker
> Fix For: 8.11, 9.0
>
> Attachments: reproduce.sh
>
>
> Reproduction Steps: # Create a collection _'foo',_
> # Insert small number of documents (_say 10_) into collection _'foo'_
> # Backup collection _'foo'_ using collections API
> (/admin/collections?action=BACKUP), this should result in creation of
> _backupId 0_
> # Backup collection _'foo'_ again using collections API
> (/admin/collections?action=BACKUP), this should result in creation of
> _backupId 1_
> # Delete _backupId 0_ for collection _'foo'_
> (/admin/collections?action=DELETEBACKUP?backupId=0)
> # Run delete backup for collection _'foo'_ again, this time with
> _'purgeUnused=true'_ (/admin/collections?action=DELETEBACKUP?purgeUnused=true)
> # Restore from _backupId 1_ which still exists to collection _'bar'_
> (/admin/collections?action=RESTORE)
> Expected Result: # Restored collection 'bar' has 10 documents in it
> Actual Result: # Restored collection 'bar' has 0 documents in it
> We found in our testing that when purge is used it incorrectly deletes all
> backup data instead of just the unused data as it supposed to.
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