Zhu Zhu created FLINK-27710:
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Summary: Improve logs to better display Execution
Key: FLINK-27710
URL: https://issues.apache.org/jira/browse/FLINK-27710
Project: Flink
Issue Type: Improvement
Components: Runtime / Coordination, Runtime / Task
Affects Versions: 1.16.0
Reporter: Zhu Zhu
Fix For: 1.16.0
Currently, an execution is usually represented as "{{{}job vertex name{}}}
({{{}subtaskIndex+1{}}}/{{{}vertex parallelism{}}}) ({{{}attemptId{}}})" in
logs, which may be redundant after this refactoring work. With the change of
FLINK-17295, the representation of Execution in logs will be redundant. e.g.
the subtask index is displayed 2 times.
Therefore, I'm proposing to change the format to be "{{{}job vertex name{}}}
({{{}short ExecutionGraphID{}}}:{{{}JobVertexID{}}})
({{{}subtaskIndex+1{}}}/{{{}vertex parallelism{}}}) ({{{}#attemptNumber{}}})"
and avoid directly display the {{{}ExecutionAttemptID{}}}. This can increase
the log readability.
Besides that, the displayed {{JobVertexID}} can also help to distinguish job
vertices of the same name, which is common in DataStream jobs (e.g. multiple
{{{}Map{}}}).
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