[jira] [Created] (SOLR-11189) Provisioning actions for autoscaling

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

Andrzej Bialecki  created SOLR-11189:
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             Summary: Provisioning actions for autoscaling
                 Key: SOLR-11189
                 URL: https://issues.apache.org/jira/browse/SOLR-11189
             Project: Solr
          Issue Type: Sub-task
      Security Level: Public (Default Security Level. Issues are Public)
          Components: AutoScaling
            Reporter: Andrzej Bialecki 
             Fix For: master (8.0)


Autoscaling should be able to provision new nodes when necessary, or decommission no longer needed nodes. Solr should support a few common platforms out of the box (eg. AWS and Azure) with an API for integration with other platforms.

Auto-provisioning can already be implemented as a {{TriggerAction}}, however there are common non-trivial aspects that should be supported by the framework, such as:
* authentication to cluster manager APIs
* ability to consider cost vs. performance tradeoffs and constraints (avoiding over-provisioning and under-provisioning)
* maintaining cluster stability (avoiding trashing) while reacting with small delay and lag. These aspects will likely require some form of feedback loop controller.



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