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Posted to issues@flink.apache.org by "Congxian Qiu(klion26) (Jira)" <ji...@apache.org> on 2020/05/08 09:15:00 UTC
[jira] [Commented] (FLINK-17468) Provide more detailed metrics why
asynchronous part of checkpoint is taking long time
[ https://issues.apache.org/jira/browse/FLINK-17468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17102397#comment-17102397 ]
Congxian Qiu(klion26) commented on FLINK-17468:
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Hi [~qqibrow] from your previous reply, for the purpose to debug the checkpoint slowness, do you mean you need to add more and more log in {{RocksDBIncrementalSnapshotOperation}} and the other functions so that you can know the exact place which caused the slowness? If this is the scenario, do you think we add more debug/trace log in each step of the async snapshot part as my previous reply is good for your debug purpose? or what other metric or log do you want?
> Provide more detailed metrics why asynchronous part of checkpoint is taking long time
> -------------------------------------------------------------------------------------
>
> Key: FLINK-17468
> URL: https://issues.apache.org/jira/browse/FLINK-17468
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Checkpointing, Runtime / Metrics, Runtime / State Backends
> Affects Versions: 1.10.0
> Reporter: Piotr Nowojski
> Priority: Major
>
> As [reported by users|https://lists.apache.org/thread.html/r0833452796ca7d1c9d5e35c110089c95cfdadee9d81884a13613a4ce%40%3Cuser.flink.apache.org%3E] it's not obvious why asynchronous part of checkpoint is taking so long time.
> Maybe we could provide some more detailed metrics/UI/logs about uploading files, materializing meta data, or other things that are happening during the asynchronous checkpoint process?
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