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https://issues.apache.org/jira/browse/SOLR-4114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13509864#comment-13509864
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Mark Miller commented on SOLR-4114:
-----------------------------------
bq. In checkForCollection we are willing to wait up to 120 secs (used to be 60
secs) for the collection to be created (correctly). So it is kinda obvious to
also wait at least 60 secs to verify that nothing related to a collection was
actually created in cases where you want to be sure that nothing is created.
We poll so that we wait up to 120 seconds for a slow comp, but a fast comp
won't need to wait nearly that long. The 60 wait hits everyone no matter what.
We generally try avoid any hard waits like that. I understand you can't really
poll in this case, so I'm not sure the best way to test that - I made it a TODO
for now.
> 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, 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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