[
https://issues.apache.org/jira/browse/FLINK-13698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flink Jira Bot updated FLINK-13698:
-----------------------------------
Labels: auto-deprioritized-critical auto-deprioritized-major (was:
auto-deprioritized-critical stale-major)
Priority: Minor (was: Major)
This issue was labeled "stale-major" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Major, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Rework threading model of CheckpointCoordinator
> -----------------------------------------------
>
> Key: FLINK-13698
> URL: https://issues.apache.org/jira/browse/FLINK-13698
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Affects Versions: 1.10.0
> Reporter: Piotr Nowojski
> Priority: Minor
> Labels: auto-deprioritized-critical, auto-deprioritized-major
> Fix For: 1.14.0
>
>
> Currently {{CheckpointCoordinator}} and {{CheckpointFailureManager}} code is
> executed by multiple different threads (mostly {{ioExecutor}}, but not only).
> It's causing multiple concurrency issues, for example:
> https://issues.apache.org/jira/browse/FLINK-13497
> Proper fix would be to rethink threading model there. At first glance it
> doesn't seem that this code should be multi threaded, except of parts doing
> the actual IO operations, so it should be possible to run everything in one
> single ExecutionGraph's thread and just run asynchronously necessary IO
> operations with some feedback loop ("mailbox style").
> I would strongly recommend fixing this issue before adding new features in
> the \{{CheckpointCoordinator}} component.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
