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https://issues.apache.org/jira/browse/SOLR-12739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16644872#comment-16644872
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Shalin Shekhar Mangar commented on SOLR-12739:
----------------------------------------------
{code}
SOLR-12739: Release the policy session as soon as we're done with the
computation.
This fixes the
CollectionsAPIDistributedZkTest.testCoresAreDistributedAcrossNodes test
failures. Due to the various tests for exceptional conditions, there were times
where the session was not released causing stale data to remain in the policy
session cache.
master: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/50d1c7b4
branch_7x: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/a4cc66bd
{code}
> Make autoscaling policy based replica placement the default strategy for
> placing replicas
> -----------------------------------------------------------------------------------------
>
> Key: SOLR-12739
> URL: https://issues.apache.org/jira/browse/SOLR-12739
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling, SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Priority: Major
> Fix For: 7.6, master (8.0)
>
> Attachments: SOLR-12739.patch, SOLR-12739.patch, SOLR-12739.patch,
> SOLR-12739.patch, SOLR-12739.patch
>
>
> Today the default placement strategy is the same one used since Solr 4.x
> which is to select nodes on a round robin fashion. I propose to make the
> autoscaling policy based replica placement as the default policy for placing
> replicas.
> This is related to SOLR-12648 where even though we have default cluster
> preferences, we don't use them unless a policy is also configured.
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