Hi Guowei:
  Thanks for your help, it  solves my problem.










Best regards

At 2021-05-24 15:15:57, "Guowei Ma" <guowei....@gmail.com> wrote:

Hi
I think you are right that the metrics are reset after the job restart. It is 
because the metrics are only stored in the memory.
I think you could store the metrics to the Flink's state[1], which could be 
restored after the job restarted.


[1] 
https://ci.apache.org/projects/flink/flink-docs-release-1.13/docs/dev/datastream/fault-tolerance/state/

Best,
Guowei




On Mon, May 24, 2021 at 10:59 AM zzzyw <zhanyw1...@163.com> wrote:

Dear all:
  I use flink for real-time data synchronization(mysql,oracle --> kafka -->
mysql,oracle). I want to count how many pieces of data are synchronized
every day(maybe need to count the last n days ).

  I am doing this now: flink metrics send to pushgateway, and then sum the
metrics (flink_taskmanager_job_task_numRecordsOut)  to count how many pieces
of data are synchronized every day,
but i found this metrics will reset after the flink job restart, how should
I deal with this problem? or is there any better way to count?

<http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/t3167/Snipaste_2021-05-24_10-51-22.png>

Best regards



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