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https://issues.apache.org/jira/browse/SOLR-12713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599547#comment-16599547
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Varun Thacker commented on SOLR-12713:
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{quote}be my pleasure to implement this if possible.
{quote}
That's great! I'd be happy to review

I think it might involve some plumbing though.  We'd need to start with Solr 
allowing multiple data directories on startup. 

Then Core level APIs like create core need to support taking a disk parameter

And then Collection level APIs would need to be able to utilize it ( 
add-replica etc )

We could tackle these as sub-jiras to make it easier to review and commit 
smaller chunks.

> make "solr.data.dir" points to multiple base path, and collection's replicas 
> may distribute in them
> ---------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-12713
>                 URL: https://issues.apache.org/jira/browse/SOLR-12713
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: Server
>            Reporter: weizhenyuan
>            Priority: Major
>
> As discussion in user mail-list,It's of worthy of making  "solr.data.dir" 
> points to multiple base paths, which collection's replicas may distribute in.
> Currently, solr only could points to a single common dataDir,to maximize 
> indexing throughput   in same cases,solr maybe introduce a new feature to 
> support multiple dataDir paths.



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