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Posted to issues-all@impala.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/08/06 04:19:00 UTC
[jira] [Commented] (IMPALA-8806) Add metrics to improve
observability of executor groups
[ https://issues.apache.org/jira/browse/IMPALA-8806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900603#comment-16900603 ]
ASF subversion and git services commented on IMPALA-8806:
---------------------------------------------------------
Commit b5193f36de05218f90581d29dd71d7e570e38b46 in impala's branch refs/heads/master from Bikramjeet Vig
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=b5193f3 ]
IMPALA-8806: Add metrics to improve observability of executor groups
This patch adds 3 metrics under a new metric group called
"cluster-membership" that keep track of the number of executor groups
that have at least one live executor, number of executor groups that are
in a healthy state and the number of backends registered with the
statestore.
Testing:
Modified tests to use these metrics for verification.
Change-Id: I7745ea1c7c6778d3fb5e59adbc873697beb0f3b9
Reviewed-on: http://gerrit.cloudera.org:8080/13979
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>
> 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
> Priority: Major
> Labels: observability
>
> 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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