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Posted to issues@lucene.apache.org by "Varun Thacker (Jira)" <ji...@apache.org> on 2020/07/26 01:28:00 UTC
[jira] [Comment Edited] (SOLR-12845) Add a default cluster policy
[ https://issues.apache.org/jira/browse/SOLR-12845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17165144#comment-17165144 ]
Varun Thacker edited comment on SOLR-12845 at 7/26/20, 1:27 AM:
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Hi Houston,
Can you post the results of the test you ran with Ishan's script ? Like AB mentioned on Slack, why was master faster below 80 collections . Wondering if you also got similar results.
> Have we agreed to revert this commit on 8_6 and 8x?
AB also mentioned that we should remove these rules. I agree with that given the fact that the autoscaling framework is going away ( SOLR-14656 )
was (Author: varunthacker):
Hi Houston,
Can you post the results of the test you ran with Ishan's script ? Like AB mentioned on Slack, why was master faster below 80 collections . Wondering if you also got similar results.
> Have we agreed to revert this commit on 8_6 and 8x?
AB also mentioned that we should remove these rules. I agree with that given the fact that the autoscaling framework is going away ( SOLR-14656 )
> Add a default cluster policy
> ----------------------------
>
> Key: SOLR-12845
> URL: https://issues.apache.org/jira/browse/SOLR-12845
> Project: Solr
> Issue Type: Improvement
> Components: AutoScaling
> Reporter: Shalin Shekhar Mangar
> Assignee: Andrzej Bialecki
> Priority: Major
> Fix For: 8.6
>
> Attachments: SOLR-12845.patch, SOLR-12845.patch, Screenshot from 2020-07-18 21-07-34.png
>
>
> [~varunthacker] commented on SOLR-12739:
> bq. We should also ship with some default policies - "Don't allow more than one replica of a shard on the same JVM" , "Distribute cores across the cluster evenly" , "Distribute replicas per collection across the nodes"
> This issue is about adding these defaults. I propose the following as default cluster policy:
> {code}
> # Each shard cannot have more than one replica on the same node if possible
> {"replica": "<2", "shard": "#EACH", "node": "#ANY", "strict":false}
> # Each collections replicas should be equally distributed amongst nodes
> {"replica": "#EQUAL", "node": "#ANY", "strict":false}
> # All cores should be equally distributed amongst nodes
> {"cores": "#EQUAL", "node": "#ANY", "strict":false}
> {code}
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