Chesnay Schepler created FLINK-10822:
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Summary: Configurable MetricQueryService interval
Key: FLINK-10822
URL: https://issues.apache.org/jira/browse/FLINK-10822
Project: Flink
Issue Type: Improvement
Components: Metrics
Reporter: Chesnay Schepler
Assignee: Chesnay Schepler
Fix For: 1.8.0
The {{MetricQueryService}} is used for transmitting metrics from TaskManagers
to the JobManager, in order to expose them via REST and by extension the WebUI.
By default the JM will poll metrics at most every 10 seconds. This has an
adverse effect on the duration of our end-to-end tests, which for example query
metrics via the REST API to determine whether the cluster has started. If
during the first poll no TM is available it will take another 10 second for
updated information to be available.
By making this interval configurable we could this reduce the test duration.
Additionally this could serve as a switch to disable the {{MetricQueryService}}.
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