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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/11/27 09:16:00 UTC
[jira] [Updated] (FLINK-13905) Separate checkpoint triggering into
stages
[ https://issues.apache.org/jira/browse/FLINK-13905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-13905:
-----------------------------------
Labels: pull-request-available (was: )
> Separate checkpoint triggering into stages
> ------------------------------------------
>
> Key: FLINK-13905
> URL: https://issues.apache.org/jira/browse/FLINK-13905
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing
> Reporter: Biao Liu
> Assignee: Biao Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.10.0
>
>
> Currently {{CheckpointCoordinator#triggerCheckpoint}} includes some heavy IO operations. We plan to separate the triggering into different stages. The IO operations are executed in IO threads, while other on-memory operations are not.
> This is a preparation for making all on-memory operations of {{CheckpointCoordinator}} single threaded (in main thread).
> Note that we could not put on-memory operations of triggering into main thread directly now. Because there are still some operations on a heavy lock (coordinator-wide).
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