rkhachatryan commented on a change in pull request #11491: [FLINK-16513][checkpointing] Unaligned checkpoints: checkpoint metadata URL: https://github.com/apache/flink/pull/11491#discussion_r397456046
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/metadata/MetadataV3Serializer.java ########## @@ -115,4 +120,31 @@ protected OperatorState deserializeOperatorState(DataInputStream dis) throws IOE return operatorState; } + + @VisibleForTesting + @Override + public void serializeResultSubpartitionStateHandle(ResultSubpartitionStateHandle handle, DataOutputStream dos) throws IOException { + channelStateHandleSerializer.serialize(handle, dos); + } + + @VisibleForTesting + @Override + public ResultSubpartitionStateHandle deserializeResultSubpartitionStateHandle(DataInputStream dis) throws IOException { + final boolean hasResultSubpartitionStateHandle = dis.readInt() != 0; Review comment: Backward compatibility is maintained on a snapshot level (by having version number at the beginning of it). This check is for cases when there is no state (same approach as for other parts of the state). ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services