You are viewing a plain text version of this content. The canonical link for it is here.
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:
-----------------------------------------------

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?



--
This message was sent by Atlassian Jira
(v8.3.4#803005)