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https://issues.apache.org/jira/browse/FLINK-8802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16398268#comment-16398268
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ASF GitHub Bot commented on FLINK-8802:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/5691#discussion_r174380197
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/internal/InternalMapState.java
---
@@ -20,13 +20,16 @@
import org.apache.flink.api.common.state.MapState;
+import java.util.Map;
+
/**
* The peer to the {@link MapState} in the internal state type hierarchy.
*
* <p>See {@link InternalKvState} for a description of the internal state
hierarchy.
*
- * @param <N> The type of the namespace
- * @param <UK> Type of the values folded into the state
- * @param <UV> Type of the value in the state
+ * @param <K> The type of key the state is associated to
+ * @param <N> The type of the namespace
+ * @param <UK> Type of the values folded into the state
--- End diff --
the description seems like a copy&paste from `FoldingState`
> Concurrent serialization without duplicating serializers in state server.
> -------------------------------------------------------------------------
>
> Key: FLINK-8802
> URL: https://issues.apache.org/jira/browse/FLINK-8802
> Project: Flink
> Issue Type: Bug
> Components: Queryable State
> Affects Versions: 1.5.0
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Priority: Blocker
> Fix For: 1.5.0
>
>
> The `getSerializedValue()` may be called by multiple threads but serializers
> are not duplicated, which may lead to exceptions thrown when a serializer is
> stateful.
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