[jira] [Created] (IOTDB-5579) Lower the log level of invalid statement execution

["Tian Jiang (Jira)" <ji...@apache.org>]

Tian Jiang created IOTDB-5579:
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             Summary: Lower the log level of invalid statement execution
                 Key: IOTDB-5579
                 URL: https://issues.apache.org/jira/browse/IOTDB-5579
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: mpp-cluster
            Reporter: Tian Jiang
            Assignee: Yukun Zhou
             Fix For: master branch
         Attachments: image-2023-02-24-10-07-06-436.png

The system will print an error log whatever exception it encounters during the execution of a PlanNode. 
 !image-2023-02-24-10-07-06-436.png|thumbnail! 
However, as shown in the picture, the exception may only be caused by a misoperation of a client and it is not worth the attention of the DBA.

Needless to say, too many unecessary error logs may divert the focus during maintenance or debugging. Therefore, I suggest to lower the log level for such exceptions. To be more specific, the log level should depend on the severity of the exceptions.

One more step to go, maybe we can assign a severity level to each exception so that the exception handling can be performed in a more unified way.



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