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Posted to dev@lucene.apache.org by "Andrzej Bialecki (JIRA)" <ji...@apache.org> on 2019/02/11 15:50:00 UTC
[jira] [Commented] (SOLR-13155) CLI tool for testing autoscaling
suggestions against a live cluster
[ https://issues.apache.org/jira/browse/SOLR-13155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16765090#comment-16765090 ]
Andrzej Bialecki commented on SOLR-13155:
------------------------------------------
This patch adds more options:
* dump the ClusterState
* dump the aggregated collection and node statistics.
If there are no objections I'm going to commit this, and I'll create a separate issue for hooking this up to the Windows script.
> CLI tool for testing autoscaling suggestions against a live cluster
> -------------------------------------------------------------------
>
> Key: SOLR-13155
> URL: https://issues.apache.org/jira/browse/SOLR-13155
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Major
> Fix For: 8.0, master (9.0)
>
> Attachments: SOLR-13155.patch, SOLR-13155.patch, SOLR-13155.patch
>
>
> Solr already provides /autoscaling/diagnostics and /autoscaling/suggestions endpoints. In some situations it would be very helpful to be able to run "what if" scenarios using data about nodes and replicas taken from a production cluster but with a different autoscaling policy than the one that is deployed, without also worrying that the calculations would negatively impact a production cluster's Overseer leader.
> All necessary classes (including the Policy engine) are self-contained in the SolrJ component, so it's just a matter of packaging and writing a CLI tool + a wrapper script.
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