guozhangwang commented on code in PR #13179:
URL: https://github.com/apache/kafka/pull/13179#discussion_r1097746204
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streams/src/main/java/org/apache/kafka/streams/processor/StateRestoreListener.java:
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@@ -37,6 +40,11 @@
* These two interfaces serve different restoration purposes and users should
not try to implement both of them in a single
* class during state store registration.
*
+ * <p>
+ * Also note that standby tasks restoration process are not monitored via this
interface, since a standby task keep
Review Comment:
ack
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streams/src/main/java/org/apache/kafka/streams/processor/StateRestoreListener.java:
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@@ -85,4 +93,17 @@ void onRestoreEnd(final TopicPartition topicPartition,
final String storeName,
final long totalRestored);
+ /**
+ * Method called when restoring the {@link StateStore} is suspended due to
the task being migrated out of the host.
+ * If the migrated task is recycled or re-assigned back to the current
host, another
+ * {@link #onRestoreStart(TopicPartition, String, long, long)} would be
called.
+ *
+ * @param topicPartition the TopicPartition containing the values to
restore
Review Comment:
ack
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