[
https://issues.apache.org/jira/browse/FLINK-28606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated FLINK-28606:
-----------------------------------
Labels: pull-request-available (was: )
> Preserve distributed consistency of OperatorEvents from OperatorCoordinator
> to subtasks
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-28606
> URL: https://issues.apache.org/jira/browse/FLINK-28606
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing
> Affects Versions: 1.14.3
> Reporter: Yunfeng Zhou
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.16.0
>
>
> This is a component of our solution to the consistency issue in the operator
> coordinator mechanism. In this step, we would guarantee the consistency of
> all communications in one direction, from OC to subtasks. This would need
> less workload and should unblock the implementation of the CEP coordinator in
> FLIP-200.
> Roughly, we would need to implement the following process in this step.
> # Let the OC finish processing all the incoming OperatorEvents before the
> snapshot.
> # Closes the gateway that sends operator events to its subtasks when the OC
> completes the snapshot.
> # Wait until all the outgoing OperatorEvents created before the snapshot are
> sent and acked.
> # Send checkpoint barriers to the Source operators.
> # Open the corresponding gateway of a subtask when the OC learned that the
> subtask has completed the checkpoint.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
