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https://issues.apache.org/jira/browse/SOLR-658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shalin Shekhar Mangar updated SOLR-658:
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Attachment: SOLR-658.patch
Thanks Akshay.
Updated patch which calls getNewIndexDir before calling IndexReader#reopen so
that if the new index directory is different from the old index directory, we
always create a new SolrIndexSearcher with the new index directory.
I'd like to commit this in the next two or three days if there are no
objections.
> Allow Solr to load index from arbitrary directory in dataDir and Commit point
> -----------------------------------------------------------------------------
>
> Key: SOLR-658
> URL: https://issues.apache.org/jira/browse/SOLR-658
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 1.4
> Reporter: Noble Paul
> Assignee: Shalin Shekhar Mangar
> Fix For: 1.4
>
> Attachments: SOLR-658.patch, SOLR-658.patch, SOLR-658.patch,
> SOLR-658.patch
>
>
> This is a requirement for java based Solr replication
> Usecase for arbitrary index directory:
> if the slave has a corrupted index and the filesystem does not allow
> overwriting files in use (NTFS) replication will fail. The solution is to
> copy the index from master to an alternate directory on slave and load
> indexreader/indexwriter from this alternate directory.
> Usecase for arbitrary commitpoint :
> Replication can also provide rollback feature . The rollback should be able
> to mention a comitpoint /generation so that rollback is possible.
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