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https://issues.apache.org/jira/browse/FLINK-22721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17348154#comment-17348154
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Chesnay Schepler commented on FLINK-22721:
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What exact guarantees do we provide for this interface? It's not tagged as an
API (so maybe let's add {{@PublicEvolving}}?) and it exposes various various
other interfaces (BlobStore, JobGraphStore, LeaderRetrievalService, and further
down even the JobGraph); are we just maintaining compatibility on a best-effort
basis?
> Breaking HighAvailabilityServices interface by adding new method
> ----------------------------------------------------------------
>
> Key: FLINK-22721
> URL: https://issues.apache.org/jira/browse/FLINK-22721
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.14.0, 1.13.1, 1.12.5
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Fix For: 1.14.0, 1.13.1, 1.12.5
>
>
> As part of FLINK-20695 we introduced a new method to the
> {{HighAvailabilityServices.cleanupJobData}} interface. Since this method has
> not default implementation it is currently breaking change. Since Flink
> allows to implement custom Ha services using this interface, I suggest adding
> a default implementation for this method.
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