zhuhaifeng created FLINK-5069:
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Summary: Pending checkpoint statistics gauge
Key: FLINK-5069
URL: https://issues.apache.org/jira/browse/FLINK-5069
Project: Flink
Issue Type: Improvement
Reporter: zhuhaifeng
Assignee: zhuhaifeng
Priority: Minor
Fix For: 1.2.0
Add the statistics of pending checkpoints as a gauge metric. When the
checkpoint appears not to be completed, this metric would help to get the
state of a pending checkpoint , e.g which task did not complete the
checkpoint.
The statistic will be as the follows：
checkpointID,
Number Of Acknowledged Tasks,
Number Of Not yet Acknowledged Tasks,
The detail of not yet acknowledged JobVertexID, taskID
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