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https://issues.apache.org/jira/browse/SOLR-16302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617960#comment-17617960
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ASF subversion and git services commented on SOLR-16302:
--------------------------------------------------------

Commit 6d398124c180e9a17653ba481f79b8cafbd68821 in solr's branch 
refs/heads/main from Albert Moser
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=6d398124c18 ]

SOLR-16302: WARN when restoring backup if ConfigSet with same name already 
exists (#1009)

Co-authored-by: Christine Poerschke <[email protected]>
Co-authored-by: Kevin Risden <[email protected]>

> Backup restore silently skips config restore if config with same name already 
> exists (in cloud mode)
> ----------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-16302
>                 URL: https://issues.apache.org/jira/browse/SOLR-16302
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Backup/Restore
>    Affects Versions: 9.0
>            Reporter: Albert Moser
>            Assignee: Kevin Risden
>            Priority: Minor
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> We have tested this only in cloud mode.
>  
> We have noticed when a backup is restored that contains a config with the 
> same name as one that already exists in solr, the config restore is silently 
> skipped (also when the configs are different but share the same name). I 
> would expect that at least a warning appears in the logs when this happens. 
> We saw that this happens with backups from local repositories as well as gcs 
> repository (possibly others too).
> Steps to reproduce the issue:
>  # Start  solr in cloud mode
>  # Upload a config (any config, we tried with the default one)
>  # Create a collection with the config
>  # Create a backup
>  # Delete collection in UI
>  # Change the config either in backup or in solr (we added an additional 
> comment)
>  #  Restore collection
>  # Have a look that after restore the old solr config has remained and the 
> restored collection is using it. At the same time, the config from the backup 
> has been ignored and no warning was produced whatsoever.



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