Xeli commented on a change in pull request #6594: [FLINK-9311] [pubsub] Added
PubSub source connector with support for checkpointing (ATLEAST_ONCE)
URL: https://github.com/apache/flink/pull/6594#discussion_r257795582
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/source/MessageAcknowledgingSourceBase.java
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@@ -148,16 +149,12 @@ public void
initializeState(FunctionInitializationContext context) throws Except
if (context.isRestored()) {
LOG.info("Restoring state for the {}.",
getClass().getSimpleName());
- List<SerializedCheckpointData[]> retrievedStates = new
ArrayList<>();
+ List<Map<Long, Set<UId>>> retrievedStates = new
ArrayList<>();
for (SerializedCheckpointData[] entry :
this.checkpointedState.get()) {
- retrievedStates.add(entry);
+
retrievedStates.add(SerializedCheckpointData.toDeque(entry, idSerializer));
}
+ pendingCheckpoints =
SerializedCheckpointData.combine(retrievedStates);
- // given that the parallelism of the function is 1, we
can only have at most 1 state
Review comment:
Yep makes sense, I've made it conditional based on parallelism == 1
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