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https://issues.apache.org/jira/browse/SOLR-13831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989004#comment-16989004
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ASF subversion and git services commented on SOLR-13831:
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Commit 5865893e649e696a9ceec4d544d6492d2d6ee1ef in lucene-solr's branch
refs/heads/branch_8x from Andrzej Bialecki
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=5865893 ]
SOLR-13831: Context property _loop_iter_ should be a string in order to support
variable expansion.
> 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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