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https://issues.apache.org/jira/browse/FLINK-27311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17524691#comment-17524691
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Yun Tang commented on FLINK-27311:
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[~JonathanDiamant] , what do you mean for {{"it seems that not all the list
corresponding to a certain key has been loaded and only after all the state has
been recovered it behaves as expected"}}?
Before the restore phase is compeleted, the state cannot be accessed.
> Rocksdb mapstate behaves unexpectedly
> --------------------------------------
>
> Key: FLINK-27311
> URL: https://issues.apache.org/jira/browse/FLINK-27311
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends, Stateful Functions
> Affects Versions: 1.14.4
> Environment: Kubernetes
> Reporter: Jonathan diamant
> Priority: Major
> Labels: MapState, State, rocksdb
>
> We use rocksDb backend for our state and we experience an unexpected
> behavior. The state we use is MapState<String, List<Object>> and when a
> restart occurs and the state is being recovered from the last checkpoints, it
> seems that not all the list corresponding to a certain key has been loaded
> and only after all the state has been recovered it behaves as expected.
> Our guess is that while recovering the state, rocksdb recovers the state in
> chunks and loads entries of the map not as a whole even though we expect that
> for every key, the value (a list) will be loaded as one object at once.
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