[jira] [Resolved] (SOLR-13831) Support defining arbitrary autoscaling simulation scenarios

["Andrzej Bialecki (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-13831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrzej Bialecki resolved SOLR-13831.
-------------------------------------
    Resolution: Fixed

> Support defining arbitrary autoscaling simulation scenarios
> -----------------------------------------------------------
>
>                 Key: SOLR-13831
>                 URL: https://issues.apache.org/jira/browse/SOLR-13831
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Andrzej Bialecki
>            Assignee: Andrzej Bialecki
>            Priority: Major
>             Fix For: 8.4
>
>         Attachments: SOLR-13831.patch, SOLR-13831.patch
>
>
> In many cases where the {{bin/solr autoscaling}} tool is used it would be very useful to be able to specify a concrete scenario to play out, eg:
>  * load a snapshot (or create a simulated cluster of N nodes)
>  * calculate suggestions
>  * apply suggestions
>  * kill one or more nodes
>  * loop N times
>  * make some arbitrary SolrRequest-s
>  * save snapshot
>  * etc...
>  
> This could be expressed as a very simple DSL that can be loaded from a text file, with the following format:
> {code:java}
> # comments
> // or comments
> create_cluster numNodes=5 // inline comment
> solr_request /admin/collections?action=CREATE&name=testCollection&numShards=2&replicationFactor=2
> loop_start iterations=10
>   calculate_suggestions
>   apply_suggestions
> loop_end
> save_snapshot path=/foo{code}
>  



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