Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/3001#discussion_r112123595
--- Diff:
flink-connectors/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/FlinkKinesisConsumer.java
---
@@ -194,26 +216,30 @@ public void run(SourceContext<T> sourceContext)
throws Exception {
// all subtasks will run a fetcher, regardless of whether or
not the subtask will initially have
// shards to subscribe to; fetchers will continuously poll for
changes in the shard list, so all subtasks
// can potentially have new shards to subscribe to later on
- fetcher = new KinesisDataFetcher<>(
- streams, sourceContext, getRuntimeContext(),
configProps, deserializer);
+ fetcher = createFetcher(streams, sourceContext,
getRuntimeContext(), configProps, deserializer);
boolean isRestoringFromFailure = (sequenceNumsToRestore !=
null);
fetcher.setIsRestoringFromFailure(isRestoringFromFailure);
// if we are restoring from a checkpoint, we iterate over the
restored
// state and accordingly seed the fetcher with subscribed
shards states
if (isRestoringFromFailure) {
--- End diff --
@tony810430 could you briefly explain the changes here in this "if
(isRestoringFromFailure)" block? I don't see how its relevant for the rescaling
change. I may be missing something, though, so would be great if you explain a
bit.
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