[ https://issues.apache.org/jira/browse/KAFKA-16263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17837760#comment-17837760 ]
Walter Hernandez commented on KAFKA-16263: ------------------------------------------ Are you referring to: {{void}} {{[setGlobalStateRestoreListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.html#setGlobalStateRestoreListener(org.apache.kafka.streams.processor.StateRestoreListener)]([StateRestoreListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/processor/StateRestoreListener.html] globalStateRestoreListener)}} Set the listener which is triggered whenever a [{{StateStore}}|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/processor/StateStore.html] is being restored in order to resume processing. {{void}} {{[setStandbyUpdateListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.html#setStandbyUpdateListener(org.apache.kafka.streams.processor.StandbyUpdateListener)]([StandbyUpdateListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/processor/StandbyUpdateListener.html] standbyListener)}} Set the listener which is triggered whenever a standby task is updated {{void}} {{[setStateListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.html#setStateListener(org.apache.kafka.streams.KafkaStreams.StateListener)]([KafkaStreams.StateListener|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.StateListener.html] listener)}} An app can set a single [{{KafkaStreams.StateListener}}|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.StateListener.html] so that the app is notified when state changes. {{}} {{void}} {{[setUncaughtExceptionHandler|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/KafkaStreams.html#setUncaughtExceptionHandler(org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler)]([StreamsUncaughtExceptionHandler|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/errors/StreamsUncaughtExceptionHandler.html] userStreamsUncaughtExceptionHandler)}} Set the handler invoked when an internal [{{stream}}|https://kafka.apache.org/37/javadoc/org/apache/kafka/streams/StreamsConfig.html#NUM_STREAM_THREADS_CONFIG] {{}} {{}} There's also this really nice tutorial on the uncaught-exception-handler feature: [https://github.com/bbejeck/streams-uncaught-exceptions-workshop] > Add Kafka Streams docs about available listeners/callback > --------------------------------------------------------- > > Key: KAFKA-16263 > URL: https://issues.apache.org/jira/browse/KAFKA-16263 > Project: Kafka > Issue Type: Task > Components: docs, streams > Reporter: Matthias J. Sax > Assignee: Kuan Po Tseng > Priority: Minor > Labels: beginner, newbie > > Kafka Streams allows to register all kind of listeners and callback (eg, > uncaught-exception-handler, restore-listeners, etc) but those are not in the > documentation. > A good place might be > [https://kafka.apache.org/documentation/streams/developer-guide/running-app.html] > -- This message was sent by Atlassian Jira (v8.20.10#820010)