liu created FLINK-14981:
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Summary: web frontend support dynamic adjustment of the log level
Key: FLINK-14981
URL: https://issues.apache.org/jira/browse/FLINK-14981
Project: Flink
Issue Type: Improvement
Components: Runtime / Web Frontend
Affects Versions: 1.9.1, 1.8.2, 1.7.2
Reporter: liu
Fix For: 1.9.1, 1.8.2, 1.7.2
Attachments: change llog level(Storm).png
In a production environment, sometimes the application behaves differently than
expected, which requires the log debugging mode to be turned on to locate the
problem. If the debug log is turned on when the program is started, the amount
of data will be very large, causing the web frontend to crash. If it is not
turned on, the program is a black box and cannot be debugged.
Can flink support dynamic adjustment of the log level like Storm and set the
expiration time at the same time. the original log level will be restored as
soon as the time expires. This will not make the program run like a black box,
nor print too many logs.
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