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https://issues.apache.org/jira/browse/SOLR-12536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559167#comment-16559167
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ASF subversion and git services commented on SOLR-12536:
--------------------------------------------------------
Commit 90424cbe271a4eab174b2897999ccfbf4bc149df in lucene-solr's branch
refs/heads/master from [~noble.paul]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=90424cbe ]
SOLR-12536: ref guide
> Enhance autoscaling policy to equally distribute replicas on the basis of
> arbitrary properties
> ----------------------------------------------------------------------------------------------
>
> Key: SOLR-12536
> URL: https://issues.apache.org/jira/browse/SOLR-12536
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
> Reporter: Noble Paul
> Assignee: Noble Paul
> Priority: Major
>
> *example:1*
> {code:java}
> {"replica" : "#EQUAL" , "shard" : "#EACH" , "port" : "#EACH" }
> //if the ports are "8983", "7574", "7575", the above rule is equivalent to
> {"replica" : "#EQUAL" , "shard" : "#EACH" , "port" : ["8983", "7574",
> "7575"]}{code}
> *case 1*: {{numShards =2, replicationFactor=3}} . In this case all the nodes
> are divided into 3 buckets each containing nodes in that port. Each bucket
> must contain {{3 * 2 /3 =2}} replicas
>
> *example : 2*
> {code:java}
> {"replica" : "#EQUAL" , "shard" : "#EACH" , "sysprop.zone" : "#EACH" }
> //if the zones are "east_1", "east_2", "west_1", the above rule is equivalent
> to
> {"replica" : "#EQUAL" , "shard" : "#EACH" , "sysprop.zone" : ["east_1",
> "east_2", "west_1"]}{code}
> The behavior is similar to example 1 , just that in this case we apply it to
> a system property
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