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https://issues.apache.org/jira/browse/FLINK-5019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Richter closed FLINK-5019.
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Resolution: Fixed
Fix Version/s: 1.2.0
> Proper isRestored result for tasks that did not write state
> -----------------------------------------------------------
>
> Key: FLINK-5019
> URL: https://issues.apache.org/jira/browse/FLINK-5019
> Project: Flink
> Issue Type: Bug
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Fix For: 1.2.0
>
>
> When a subtask is restored from a checkpoint that does not contain any state
> (e.g. because the subtask did not write state in the previous run), the
> result of {{StateInitializationContext::isRestored}} will incorrectly return
> false.
> We should ensure that empty state is somehow reflected in a checkpoint and
> return true on restore, independent from the presence of state.
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