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From "Per Steffensen (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (SOLR-4114) Collection API: Allow multiple shards from one collection on the same Solr server
Date Wed, 28 Nov 2012 16:00:58 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13505570#comment-13505570
] 

Per Steffensen edited comment on SOLR-4114 at 11/28/12 3:59 PM:
----------------------------------------------------------------

bq. I would too, but we would still disagree on what that meant since I would interpret the
"number of times the data is replicated"...

I actually agree with you. I just dont like "replication" to part of the name for it then.
If we rename "replication-factor" to "number-of-copies" or even "number-of-replica" or something
I would be much happier changing the semantics of it :-) But really, this is another issue.
                
      was (Author: steff1193):
    bq. I would too, but we would still disagree on what that meant since I would interpret
the "number of times the data is replicated"...

I actually agree with you. I just dont like "replica" to part of the name for it then. If
we rename "replication-factor" to "number-of-copies" or something I would be much happier
changing the semantics of it :-) But really, this is another issue.
                  
> 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: Per Steffensen
>              Labels: collection-api, multicore, shard, shard-allocation
>         Attachments: SOLR-4114.patch, SOLR-4114.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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