zhijiangW commented on a change in pull request #11515: [FLINK-16744][task]
implement channel state persistence for unaligned checkpoints
URL: https://github.com/apache/flink/pull/11515#discussion_r401519043
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SubtaskCheckpointCoordinatorImpl.java
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@@ -97,24 +123,26 @@ public void checkpointState(
// Step (3): Take the state snapshot. This should be largely
asynchronous, to not
// impact progress of the streaming topology
- CheckpointStreamFactory storage =
checkpointStorage.resolveCheckpointStorageLocation(
- checkpointMetaData.getCheckpointId(),
- checkpointOptions.getTargetLocation());
-
long startSyncPartNano = System.nanoTime();
HashMap<OperatorID, OperatorSnapshotFutures>
operatorSnapshotsInProgress = new
HashMap<>(operatorChain.getNumberOfOperators());
+ ChannelStateWriteResult channelStateWriteResult =
Review comment:
should we add some `TODO` before `getWriteResult`, otherwise it seems hard
to understand from this commit that we actually have not written anything
before get the result.
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