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Date: Tue, 18 Oct 2016 08:47:58 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (FLINK-4844) Partitionable Raw Keyed/Operator
 State
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archived-at: Tue, 18 Oct 2016 08:48:00 -0000


    [ https://issues.apache.org/jira/browse/FLINK-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15584899#comment-15584899 ] 

ASF GitHub Bot commented on FLINK-4844:
---------------------------------------

Github user StefanRRichter commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2648#discussion_r83807634
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/state/OperatorStateHandle.java ---
    @@ -38,8 +38,8 @@
     	private final StreamStateHandle delegateStateHandle;
     
     	public OperatorStateHandle(
    -			StreamStateHandle delegateStateHandle,
    -			Map<String, long[]> stateNameToPartitionOffsets) {
    +			Map<String, long[]> stateNameToPartitionOffsets,
    --- End diff --
    
    Changing the order here had the purpose of having the same order in `OperatorStateHandle` as in `KeyGroupStateHandle`, which was exactly the other way around :)


> Partitionable Raw Keyed/Operator State
> --------------------------------------
>
>                 Key: FLINK-4844
>                 URL: https://issues.apache.org/jira/browse/FLINK-4844
>             Project: Flink
>          Issue Type: New Feature
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
>
> Partitionable operator and keyed state are currently only available by using backends. However, the serialization code for many operators is build around reading/writing their state to a stream for checkpointing. We want to provide partitionable states also through streams, so that migrating existing operators becomes more easy.


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