ableegoldman commented on a change in pull request #11479:
URL: https://github.com/apache/kafka/pull/11479#discussion_r750810073
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File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamThread.java
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@@ -908,20 +908,25 @@ private void initializeAndRestorePhase() {
// Check if the topology has been updated since we last checked, ie via
#addNamedTopology or #removeNamedTopology
private void checkForTopologyUpdates() {
- if (lastSeenTopologyVersion < topologyMetadata.topologyVersion() ||
topologyMetadata.isEmpty()) {
- lastSeenTopologyVersion = topologyMetadata.topologyVersion();
- taskManager.handleTopologyUpdates();
-
+ do {
topologyMetadata.maybeWaitForNonEmptyTopology(() -> state);
+ if (lastSeenTopologyVersion < topologyMetadata.topologyVersion()) {
Review comment:
Yeah I'm not quite sure these changes are necessary, I thought I had it
set up to behave the way we want/need in the last PR I just merged. Of course I
could have missed something that had to be added for this PR, but can you
explain a bit more why we need these changes? Was this related to trying to fix
tests that had broken?
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