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From tzulitai <...@git.apache.org>
Subject [GitHub] flink pull request #5230: [FLINK-8345] Add iterator of keyed state on broadc...
Date Thu, 25 Jan 2018 19:26:25 GMT
Github user tzulitai commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5230#discussion_r163935065
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/state/OperatorBackendSerializationProxy.java
---
    @@ -77,16 +90,29 @@ public void read(DataInputView in) throws IOException {
     		super.read(in);
     
     		int numKvStates = in.readShort();
    -		stateMetaInfoSnapshots = new ArrayList<>(numKvStates);
    +		operatorStateMetaInfoSnapshots = new ArrayList<>(numKvStates);
     		for (int i = 0; i < numKvStates; i++) {
    -			stateMetaInfoSnapshots.add(
    -				OperatorBackendStateMetaInfoSnapshotReaderWriters
    -					.getReaderForVersion(getReadVersion(), userCodeClassLoader)
    -					.readStateMetaInfo(in));
    +			operatorStateMetaInfoSnapshots.add(
    +					OperatorBackendStateMetaInfoSnapshotReaderWriters
    +							.getOperatorStateReaderForVersion(getReadVersion(), userCodeClassLoader)
    +							.readOperatorStateMetaInfo(in));
     		}
    +
    +		int numBroadcastStates = in.readShort();
    --- End diff --
    
    One straightforward way to fix this is, is to uptick the current `VERSION` to 3, and here
you do:
    
    ```
    if (getReadVersion() >= 3) {
        // read broadcast state stuff
    }
    ```
    
    so we only try to read broadcast state stuff if the written version in the savepoint is
larger or equal to 3.


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