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https://issues.apache.org/jira/browse/FLINK-9938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16565220#comment-16565220
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ASF GitHub Bot commented on FLINK-9938:
---------------------------------------
StefanRRichter commented on a change in pull request #6460: [FLINK-9938] Clean
up full snapshot from expired state with TTL
URL: https://github.com/apache/flink/pull/6460#discussion_r206808561
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/state/heap/StateTable.java
##########
@@ -46,10 +47,13 @@
protected final InternalKeyContext<K> keyContext;
/**
- * Combined meta information such as name and serializers for this state
+ * Combined meta information such as name and serializers for this
state.
*/
protected RegisteredKeyValueStateBackendMetaInfo<N, S> metaInfo;
+ /** Filter of state value entries to modify it and decide whether to
snapshot. */
+ private StateSnapshotFilter<S> snapshotFilter =
StateSnapshotFilter.snapshotAll();
Review comment:
For consistency, please assign all initial field values in the constructor.
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> State TTL cleanup during full state scan upon checkpointing
> -----------------------------------------------------------
>
> Key: FLINK-9938
> URL: https://issues.apache.org/jira/browse/FLINK-9938
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing
> Affects Versions: 1.6.0
> Reporter: Andrey Zagrebin
> Assignee: Andrey Zagrebin
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.6.0
>
>
> We can try to piggyback full state scan during certain checkpoint processes
> in backends, check TTL expiration for every entry and evict expired to speed
> up cleanup.
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