[FLINK-14738] Job which status is finished, get operator metric

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Abandoned
• Component/s: Runtime / Metrics
• Assignee: Unassigned
• Reporter: lining
• Created: 13/Nov/19 09:13
• Updated: 13/Apr/21 20:31
• Resolved: 29/Jan/21 11:00

Description

When the job is running, we can get the operator's metrics, such as [subtask index]. [operator Name]. [metric name]
However, once finished, only the metrics for the task record can be obtained. Is it because only the record metrics for the task are stored by TaskIOMetricGroup.createSnapshot?