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From "Varun Thacker (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7117) AutoAddReplicas should have a cluster wide property for controlling number of cores hosted on each node
Date Thu, 19 Feb 2015 14:24:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327495#comment-14327495
] 

Varun Thacker commented on SOLR-7117:
-------------------------------------

bq. Hmm...don't we want to respect both collection max per node and the universal max per
node?

Makes sense I guess. I will update the patch which checks for both maxShardsPerNode and maxCoresPerNode.

> AutoAddReplicas should have a cluster wide property for controlling number of cores hosted
on each node
> -------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-7117
>                 URL: https://issues.apache.org/jira/browse/SOLR-7117
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Varun Thacker
>            Priority: Minor
>             Fix For: Trunk, 5.1
>
>         Attachments: SOLR-7117.patch, SOLR-7117.patch
>
>
> Currently when finding the best node to host the failed replicas, we respect the maxShardsPerNode
property. This is not an ideal solution as it's a per collection property and we need a cluster
wide property. Also using maxShardsPerNode can lead to unequal distribution of replicas across
nodes.
> We should just let users use the CLUSTERPROP API to set the max number of cores to be
hosted on each node and use that value while picking the node the replica will be hosted on.



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