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From "David Smiley (JIRA)" <>
Subject [jira] [Commented] (SOLR-9735) Umbrella JIRA for Auto Scaling and Cluster Management in SolrCloud
Date Sat, 12 Aug 2017 18:36:00 GMT


David Smiley commented on SOLR-9735:

NP Shalin.  BTW the URL you added:
  does a redirect to:
 which 404's.

> Umbrella JIRA for Auto Scaling and Cluster Management in SolrCloud
> ------------------------------------------------------------------
>                 Key: SOLR-9735
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Anshum Gupta
>            Assignee: Shalin Shekhar Mangar
>   Original Estimate: 1,344h
>  Remaining Estimate: 1,344h
> As SolrCloud is now used at fairly large scale, most users end up writing their own cluster
management tools. We should have a framework for cluster management in Solr.
> In a discussion with [~noble.paul], we outlined the following steps w.r.t. the approach
to having this implemented:
> * *Basic API* calls for cluster management e.g. utilize added nodes, remove a node etc.
These calls would need explicit invocation by the users to begin with. It would also specify
the {{strategy}} to use. For instance I can have a strategy called {{optimizeCoreCount}} which
would target to have an even no:of cores in each node . The strategy could optionally take
parameters as well
> * *Metrics* and stats tracking e.g. qps, etc. These would be required for any advanced
cluster management tasks e.g. *maintain a qps of 'x'* by *auto-adding a replica* (using a
recipe) etc. We would need collection/shard/node level views of metrics for this.
> * *Recipes*: combination of multiple sequential/parallel API calls based on rules. This
would be complicated specially as most of these would be long running series of tasks which
would either have to be rolled back or resumed in case of a failure.
> * *Event based triggers* that would not require explicit cluster management calls for
end users.

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