guozhangwang commented on code in PR #12270:
URL: https://github.com/apache/kafka/pull/12270#discussion_r893842993
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streams/src/main/java/org/apache/kafka/streams/processor/internals/DefaultStateUpdater.java:
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@@ -230,23 +233,35 @@ private List<TaskAndAction> getTasksAndActions() {
private void addTask(final Task task) {
if (isStateless(task)) {
- log.debug("Stateless active task " + task.id() + " was added
to the state updater");
addTaskToRestoredTasks((StreamTask) task);
+ log.debug("Stateless active task " + task.id() + " was added
to the restored tasks of the state updater");
} else {
+ updatingTasks.put(task.id(), task);
if (task.isActive()) {
- updatingTasks.put(task.id(), task);
- log.debug("Stateful active task " + task.id() + " was
added to the state updater");
+ log.debug("Stateful active task " + task.id() + " was
added to the updating tasks of the state updater");
changelogReader.enforceRestoreActive();
} else {
- updatingTasks.put(task.id(), task);
- log.debug("Standby task " + task.id() + " was added to the
state updater");
+ log.debug("Standby task " + task.id() + " was added to the
updating tasks of the state updater");
if (updatingTasks.size() == 1) {
changelogReader.transitToUpdateStandby();
}
}
}
}
+ private void removeTask(final TaskId taskId) {
+ final Task task = updatingTasks.remove(taskId);
+ if (task != null) {
+ final Collection<TopicPartition> changelogPartitions =
task.changelogPartitions();
+ changelogReader.unregister(changelogPartitions);
+ removedTasks.add(task);
+ log.debug((task.isActive() ? "Active" : "Standby")
+ + " task " + task.id() + " was removed from the updating
tasks and added to the removed tasks.");
+ } else {
+ log.debug("Task " + taskId + " was not removed since it is not
updating.");
Review Comment:
Yeah fair enough, we can revisit this when we are about to close the loop
for sure. Just want to bring this up to your radar earlier than later.
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