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From "Per Steffensen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4114) Collection API: Allow multiple shards from one collection on the same Solr server
Date Wed, 12 Dec 2012 10:17:25 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13529797#comment-13529797
] 

Per Steffensen commented on SOLR-4114:
--------------------------------------

bq. Feel free to give feedback in that issue - this was my first experience looking at easymock.

I added a comment on SOLR-4136, but basically you did a fine job!

Now that SOLR-4114 is closed would you mind continuing with SOLR-4120, Mark?
                
> Collection API: Allow multiple shards from one collection on the same Solr server
> ---------------------------------------------------------------------------------
>
>                 Key: SOLR-4114
>                 URL: https://issues.apache.org/jira/browse/SOLR-4114
>             Project: Solr
>          Issue Type: New Feature
>          Components: multicore, SolrCloud
>    Affects Versions: 4.0
>         Environment: Solr 4.0.0 release
>            Reporter: Per Steffensen
>            Assignee: Mark Miller
>              Labels: collection-api, multicore, shard, shard-allocation
>             Fix For: 4.1, 5.0
>
>         Attachments: SOLR-4114_mocking_OverseerCollectionProcessorTest_branch_4x.patch,
SOLR-4114.patch, SOLR-4114.patch, SOLR-4114.patch, SOLR-4114.patch, SOLR-4114_trunk.patch
>
>
> We should support running multiple shards from one collection on the same Solr server
- the run a collection with 8 shards on a 4 Solr server cluster (each Solr server running
2 shards).
> Performance tests at our side has shown that this is a good idea, and it is also a good
idea for easy elasticity later on - it is much easier to move an entire existing shards from
one Solr server to another one that just joined the cluter than it is to split an exsiting
shard among the Solr that used to run it and the new Solr.
> See dev mailing list discussion "Multiple shards for one collection on the same Solr
server"

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