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

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

Andrzej Bialecki created SOLR-13831:
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             Summary: 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


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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