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https://issues.apache.org/jira/browse/FLINK-15568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17014212#comment-17014212
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Zhu Zhu edited comment on FLINK-15568 at 1/13/20 10:51 AM:
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Hi [~andrew_lin], RestartPipelinedRegionStrategy is experimental in 1.8 with
some known issues. It becomes production ready since 1.9 (FLINK-4256). State
restore is also supported since then.
There is no plan to backport the changes to 1.8 since the changes are huge and
not bug fixes.
was (Author: zhuzh):
Hi [~andrew_lin], RestartPipelinedRegionStrategy is experimental in 1.8 with
some known issues. It becomes production ready since 1.9 (FLINK-4256).
There is no plan to backport the changes to 1.8 since the changes are huge and
not bug fixes.
> RestartPipelinedRegionStrategy: not ensure the EXACTLY_ONCE semantics, in 1.8
> versions
> --------------------------------------------------------------------------------------
>
> Key: FLINK-15568
> URL: https://issues.apache.org/jira/browse/FLINK-15568
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Affects Versions: 1.8.0, 1.8.1, 1.8.3
> Reporter: Andrew.D.lin
> Priority: Minor
> Attachments: image-2020-01-13-16-40-47-888.png
>
>
> In 1.8* versions, FailoverRegion.java restart method not restore from latest
> checkpoint and marked TODO.
> Should we support this feature (region restart) in flink 1.8?
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