k-apol commented on code in PR #19913:
URL: https://github.com/apache/kafka/pull/19913#discussion_r2147033788
##########
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:
I think it's a good idea, we are making this method work really hard. He
could use some pals to help him out
##########
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) {
Review Comment:
> Is this check actually correct here? `validateTopics()` above would return
all topics that we need to create, so if `topicsNotReady` is empty here, all
topic we did expect exist and we should not throw an exception. Should it be(?):
>
> ```
> if (!topicsNotReady.isEmpty() && isManualInternalTopicConfig) {
> throw new...
> }
> ```
>
> (for this case, we would also move the check further below inside the
already existing block that tried to creates internal topics L490):
>
> ```
> if (!topicsNotReady.isEmpty()) {
> if (isManualInternalTopicConfig) {
> throw new ...
> }
>
> final Set<NewTopic> newTopics = new HashSet<>();
> ```
My thinking was this,
if `(!topicsNotReady.isEmpty())` evaluates to true (the break condition for
the while loop), we are saying **there are some topics to create**.. but, if I
understand your point, that decision is not actually determined until validate
finishes executing?
Validate could return a result that says '**there's nothing to create', **
but the way this check stands, it would fail prematurely. If we decide to fail,
we would need to be certain that there is a need to actually create topics to
reach the desired state. I think capturing this decision in a variable could
make this more readable in a future refactor.
I will read over this and think on it, I think you may be right
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