[FLINK-33320] Support Dynamic Logger Level Adjustment

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Runtime / REST
• Labels: REST_API runtime
• Assignee: RocMarshal
• Reporter: RocMarshal
• Created: 19/Oct/23 14:11
• Updated: 09/Nov/23 13:40

Description

During the process of routine program debugging or troubleshooting, analyzing system logs is a common approach. 

Comprehensive and detailed system logs contribute to improved visibility of internal system execution information and also enhance the efficiency of program debugging or issue troubleshooting.However, comprehensive and detailed log settings can lead to the following issues:

1. A sharp increase in log volume, accelerating disk occupancy.
2. Potential risks of system performance degradation due to a large volume of log printing.
3. The need to simplify log configuration subsequently.

     Therefore, introducing a mechanism to dynamically adjust the online log output level in the event of diagnosing online issues or debugging programs could be meaningful. 

This mechanism should ideally provide the following two basic capabilities:

1. Dynamically adjust log levels.
2. Query the current log levels of the JM/TM in the cluster.

 

The proposal doc:  https://docs.google.com/document/d/1s2XQzet_8oPhMs3WyDhP_pPhAE3d1Gdw_qR4W0nKtlY/edit?usp=sharing

Issue Links

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