[jira] [Commented] (SOLR-10591) Backup and Restore Solr Index based on Time

["Shawn Heisey (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15991501#comment-15991501 ] 

Shawn Heisey commented on SOLR-10591:
-------------------------------------

I have not actually used the backup feature, but I would be VERY surprised if a "merge" was possible.  Pretty sure that restoring an index will make the index identical to the backup, because I think it's a file level operation.  Merging the indexes would require *document* level operations.

> Backup and Restore Solr Index based on Time
> -------------------------------------------
>
>                 Key: SOLR-10591
>                 URL: https://issues.apache.org/jira/browse/SOLR-10591
>             Project: Solr
>          Issue Type: Task
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Backup/Restore
>    Affects Versions: 5.0
>            Reporter: Avinash Gaddam
>            Priority: Critical
>
> Hi,
> I am fairly new to Solr world, had an requirement regarding Backup/Solr data -
>  Requirement -
> Currently we are Indexing Metadatasin Solr which has been for around year. 
> We want to take a backup of data on Month to Month basis and restore the same when required. i.e. say - take back up of March data alone and restore the same back in the month of May.
> Tried till now –
> I was able to take back up of Complete Index and restore the same back as new Index.
> But unable to merge it with Current latest Index. Is this doable?
> Can  I take Partial data Backup and Restore the same to the current Index.?



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