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https://issues.apache.org/jira/browse/SOLR-7374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339971#comment-15339971
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Hrishikesh Gadre commented on SOLR-7374:
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[~varunthacker]
bq. Let's stick to the current model of reading from the solr.xml file and
defaulting to local if its not defined ?
I am not sure if you realize the problem here. This is the code snippet that I
am wondering about,
https://github.com/apache/lucene-solr/blob/a4455a4b14f2bf947db1136f9d5fc7d0d88d32ef/solr/core/src/java/org/apache/solr/handler/ReplicationHandler.java#L1324
This particular code is invoked as a callback (and not directly as part of
handling a user request).
https://github.com/apache/lucene-solr/blob/a4455a4b14f2bf947db1136f9d5fc7d0d88d32ef/solr/core/src/java/org/apache/solr/handler/ReplicationHandler.java#L1182
So in case there are multiple repositories configured, we need a way to
configure *which* repository to use. In case of backup/restore API - this
configuration parameter was passed by the user. I wonder if we need to add a
config param in the ReplicationHandler ?
> 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: Mark Miller
> Fix For: 6.2
>
> Attachments: SOLR-7374.patch, SOLR-7374.patch, SOLR-7374.patch,
> SOLR-7374.patch, SOLR-7374.patch, SOLR-7374.patch, SOLR-7374.patch
>
>
> 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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