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https://issues.apache.org/jira/browse/FLINK-13469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger reassigned FLINK-13469:
--------------------------------------
Assignee: PengFei Li
> Resource used by StateMapSnapshot can not be released if snapshot fails
> -----------------------------------------------------------------------
>
> Key: FLINK-13469
> URL: https://issues.apache.org/jira/browse/FLINK-13469
> Project: Flink
> Issue Type: Bug
> Components: Runtime / State Backends
> Affects Versions: 1.9.0
> Reporter: PengFei Li
> Assignee: PengFei Li
> Priority: Major
>
> Currently, resource used by {{StateMapSnapshot}} is released in
> {{AbstractStateTableSnapshot#writeStateInKeyGroup}} as follows
> {code:java}
> public void writeStateInKeyGroup(@Nonnull DataOutputView dov, int keyGroupId)
> throws IOException {
> StateMapSnapshot<K, N, S, ? extends StateMap<K, N, S>> stateMapSnapshot =
> getStateMapSnapshotForKeyGroup(keyGroupId);
> stateMapSnapshot.writeState(localKeySerializer, localNamespaceSerializer,
> localStateSerializer, dov, stateSnapshotTransformer);
> stateMapSnapshot.release();
> }
> {code}
> If exception happens in {{StateMapSnapshot#writeState}}, resources used by
> this and left {{StateMapSnapshot}} s can not be released.
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