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https://issues.apache.org/jira/browse/FLINK-18112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17127206#comment-17127206
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Congxian Qiu(klion26) commented on FLINK-18112:
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[~ym] Thanks for creating the ticket, I think this feature can be very helpful
for some scenarios. I'm interested in it. Does there any public documentation
for this feature? Thanks
> Single Task Failure Recovery Prototype
> --------------------------------------
>
> Key: FLINK-18112
> URL: https://issues.apache.org/jira/browse/FLINK-18112
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Checkpointing, Runtime / Coordination, Runtime
> / Network
> Affects Versions: 1.12.0
> Reporter: Yuan Mei
> Assignee: Yuan Mei
> Priority: Major
> Fix For: 1.12.0
>
>
> Build a prototype of single task failure recovery to address and answer the
> following questions:
> *Step 1*: Scheduling part, restart a single node without restarting the
> upstream or downstream nodes.
> *Step 2*: Checkpointing part, as my understanding of how regional failover
> works, this part might not need modification.
> *Step 3*: Network part
> - how the recovered node able to link to the upstream ResultPartitions, and
> continue getting data
> - how the downstream node able to link to the recovered node, and continue
> getting node
> - how different netty transit mode affects the results
> - what if the failed node buffered data pool is full
> *Step 4*: Failover process verification
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