xiaodao created FLINK-16478:
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Summary: add restApi to modify loglevel
Key: FLINK-16478
URL: https://issues.apache.org/jira/browse/FLINK-16478
Project: Flink
Issue Type: Improvement
Components: Runtime / REST
Reporter: xiaodao
sometimes we may need to change loglevel to get more information to resolved
bug, now we need to stop it and modify conf/log4j.properties and resubmit it ,i
think it's better to add rest api to modify loglevel.
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