[FLINK-13813] metrics is different between overview ui and metric response

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: Runtime / Web Frontend

Environment

Flink 1.8.1 with hdfs

• Assignee: Unassigned
• Reporter: lidesheng
• Created: 22/Aug/19 01:11
• Updated: 04/Dec/20 07:24
• Resolved: 04/Dec/20 07:24

Description

After a flink task is over, I get metrics by http request. The record count in response is different with job overview.After a flink task is over, I get metrics by http request. The record count in response is different with job overview.
get http://x.x.x.x:8081/jobs/57969f3978edf3115354fab1a72fd0c8 returns:
{ "jid": "57969f3978edf3115354fab1a72fd0c8", "name": "3349_cjrw_1566177018152", "isStoppable": false, "state": "FINISHED", ... "vertices": [ { "id": "d1cdde18b91ef6ce7c6a1cfdfa9e968d", "name": "CHAIN DataSource (3349_cjrw_1566177018152/SOURCE/0) -> Map (3349_cjrw_1566177018152/AUDIT/0)", "parallelism": 1, "status": "FINISHED", ... "metrics":

{ "read-bytes": 0, "read-bytes-complete": true, "write-bytes": 555941888, "write-bytes-complete": true, "read-records": 0, "read-records-complete": true, "write-records": 5000000, "write-records-complete": true }

... } ... ] }}
But, the metrics by http://x.x.x.x:8081/jobs/57969f3978edf3115354fab1a72fd0c8/vertices/d1cdde18b91ef6ce7c6a1cfdfa9e968d/metrics?get=0.numRecordsOut returns
[\{"id":"0.numRecordsOut","value":"4084803"}]
The overview record count is different with task metrics, please view the apppendix.