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Posted to issues@impala.apache.org by "Bikramjeet Vig (JIRA)" <ji...@apache.org> on 2019/07/29 20:03:00 UTC

[jira] [Created] (IMPALA-8806) Add metrics to improve observability of executor groups

Bikramjeet Vig created IMPALA-8806:
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             Summary: Add metrics to improve observability of executor groups
                 Key: IMPALA-8806
                 URL: https://issues.apache.org/jira/browse/IMPALA-8806
             Project: IMPALA
          Issue Type: Improvement
    Affects Versions: Impala 3.3.0
            Reporter: Bikramjeet Vig
            Assignee: Bikramjeet Vig


As a follow on IMPALA-8484, it makes sense to add some metrics to provide better observability into the state of executor groups.

Some metrics can be:

- number of executor groups with any impalas in them
- number of healthy executor groups
- number of backends. Currently we have a python helper that calculates this - get_num_known_live_backends, but it really should be a metric (we could replace the test code with a metric if we did this).



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