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https://issues.apache.org/jira/browse/SOLR-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13485656#comment-13485656
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Erick Erickson commented on SOLR-1533:
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I'm thinking of killing this JIRA, SOLR-1306 (which is up real soon now on my
list) seems like it would handle this case. Having a pluggable
CoreDescriptorProvider should allow the resident code to provide whatever
instanceDir one wants. Since it's resident on the server, it can do whatever is
needed to insure that the actual core directories are distributed as desired.
So I'll kill this (or, more accurately, say it's a duplicate of 1306) unless I
there's a reason 1306 won't handle this.
> Partition data directories into multiple "bucket" directories
> -------------------------------------------------------------
>
> Key: SOLR-1533
> URL: https://issues.apache.org/jira/browse/SOLR-1533
> Project: Solr
> Issue Type: New Feature
> Components: multicore
> Reporter: Shalin Shekhar Mangar
> Assignee: Erick Erickson
> Fix For: 4.1
>
>
> Provide a way to partition data directories into multiple "bucket"
> directories. For example, instead of creating 10,000 data directories inside
> one base data directory, Solr can assign a core to one of 4 base directories,
> thereby distributing them.
> The underlying problem is that with large number of indexes, we see slower
> and slower system performance as one goes on increasing the number of cores,
> thereby increasing the number of directories in the single data directory.
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