mjsax commented on code in PR #19913:
URL: https://github.com/apache/kafka/pull/19913#discussion_r2146263823


##########
streams/src/main/java/org/apache/kafka/streams/processor/internals/InternalTopicManager.java:
##########
@@ -461,15 +469,22 @@ public Set<String> makeReady(final Map<String, 
InternalTopicConfig> topics) {
         // have existed with the expected number of partitions, or some create 
topic returns fatal errors.
         log.debug("Starting to validate internal topics {} in partition 
assignor.", topics);
 
-        long currentWallClockMs = time.milliseconds();
+        final long currentWallClockMs = time.milliseconds();
         final long deadlineMs = currentWallClockMs + retryTimeoutMs;
+        final long initDeadlineMs = currentWallClockMs + 
this.initTimeout.toMillis();
 
         Set<String> topicsNotReady = new HashSet<>(topics.keySet());
         final Set<String> newlyCreatedTopics = new HashSet<>();
 
         while (!topicsNotReady.isEmpty()) {
             final Set<String> tempUnknownTopics = new HashSet<>();
             topicsNotReady = validateTopics(topicsNotReady, topics, 
tempUnknownTopics);
+
+            if (this.isManualInternalTopicConfig && !this.isInitializing) {
+                throw new MissingInternalTopicsException("Internal topic 
configuration set to MANUAL. \n" +
+                        "You must call init() to setup internal topics.", new 
ArrayList<>(topicsNotReady));
+            }
+
             newlyCreatedTopics.addAll(topicsNotReady);
 
             if (!topicsNotReady.isEmpty()) {

Review Comment:
   To reduce complexity of this class, we should also extract this block into a 
sub-method (maybe in a separate refactoring PR to not convolute PRs.) called 
`createTopics()` or similar?



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