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https://issues.apache.org/jira/browse/SOLR-658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12616801#action_12616801
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Noble Paul commented on SOLR-658:
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Implementation
* keep a file index.properties in the data dir
* Have an entry index=<new.index> in that file
* This file may also keep _version_
* When a new indexsearcher/writer is loaded, read this property and try to
load the index from that folder
* if it is absent , default to the hardcoded value for index and latest
commitpoint
> 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: 1.3
> Reporter: Noble Paul
>
> 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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