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From "Hrishikesh Gadre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7374) Backup/Restore should provide a param for specifying the directory implementation it should use
Date Thu, 24 Mar 2016 23:50:25 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15211148#comment-15211148
] 

Hrishikesh Gadre commented on SOLR-7374:
----------------------------------------

[~varunthacker] Sure. I think at the high-level we can expose API to configure Directory configurations
for storing snapshots (e.g. local filesystem, HDFS, S3 etc.). As part of the implementation,
we can store this config to ZK. Once this mechanism in place, we can pass appropriate directory
configuration during the backup command execution. Does this make sense?

CC  [~dsmiley] (who is also interested in SOLR-5750)

> Backup/Restore should provide a param for specifying the directory implementation it
should use
> -----------------------------------------------------------------------------------------------
>
>                 Key: SOLR-7374
>                 URL: https://issues.apache.org/jira/browse/SOLR-7374
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Varun Thacker
>            Assignee: Varun Thacker
>             Fix For: 5.2, master
>
>
> Currently when we create a backup we use SimpleFSDirectory to write the backup indexes.
Similarly during a restore we open the index using FSDirectory.open . 
> We should provide a param called {{directoryImpl}} or {{type}} which will be used to
specify the Directory implementation to backup the index. 
> Likewise during a restore you would need to specify the directory impl which was used
during backup so that the index can be opened correctly.
> This param will address the problem that currently if a user is running Solr on HDFS
there is no way to use the backup/restore functionality as the directory is hardcoded.
> With this one could be running Solr on a local FS but backup the index on HDFS etc.



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