As you may have noticed, kafka-topics.sh --delete will only delete a topic if the topic’s leader broker is available (and can acknowledge the removal). Since the broker 100 is down and currently unavailable the topic deletion has only been recorded in Zookeeper.

The hierarchical topics with wildcard subscriptions provided by PubSub+ let different Apache Kafka Message Routing, Filtering, Ordering they are closed at a given size and a new one started, they are deleted over time by age or da

The parameters are organized by order of importance, ranked from high to low. cleanup.policy. A string that is either "delete" or "compact" or both. This string designates the retention policy to use on old log segments. The important part is the last line, notice that it returns no messages, but the offset is 2.

Kafka delete messages in topic

Issue the delete command on the topic. kafka-topics.sh --zookeeper :2181 --topic --delete. That is it, the Kafka topic will now be deleted. Deleting a message in Kafka is configurable irrespective of whether you read it or not. After reading, the message offset moves to next offset for next message, It does not get deleted immediately after reading.This is one of the difference between Kafka and other JMS based message broker 9.3K views 2021-01-14 · The KafkaConsumer node then receives messages that are published on the Kafka topic, as input to the message flow. You can use a KafkaProducer node to publish messages from your message flow to a topic that is hosted on a Kafka server. For more information about using a KafkaProducer node, see Producing messages on Kafka topics.

kafka-topics.sh --zookeeper :2181 --topic --delete. That is it, the Kafka topic will now be deleted.

There are no random reads from Kafka. Consumer has to mention the offset for the topic and Kafka starts serving the messages in order from the given offset. Kafka does not offer the ability to delete. The message stays via logs in Kafka till it expires (until the retention time defined).

List the topics. Delete the topic. Click here if you want to purge the messages in the topic before deleting this topic.

In simple terms, Apache Kafka will keep latest version of a record and delete the older versions with same key. Kafka log compaction allows consumers to regain their state from compacted topic.

The easiest way to purge or delete messages in a Kafka topic is by setting the retention.ms to a low value. retention.ms configuration controls how long messages should be kept in a topic.

You can use a KafkaProducer node to publish messages from your message flow to a topic that is hosted on a Kafka server.
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The parameters are organized by order of importance, ranked from high to low.

if no messages are seen for x days, consider the topic defunct and remove it from the cluster.
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To delete all the messages from a Kafka topic. There are many approach : - Approach 1: Using Retention Time ( We can also say Soft Deletion without interruption. ) By Default Retention Time is : 7 Days. bin/kafka-configs.sh --zookeeper localhost:2181 --alter --entity-name kafka_keyword --entity-type topics --add-config retention.ms=1000.

A string that is either "delete" or "compact" or both. This string designates the retention policy to use on old log segments. In the default case, Kafka topics are a stream of messages: [ a:1, b:2, c:3 ] There is no way to change or delete previous messages, except that messages that are too old get deleted after a specified "retention time." Compacted topics provide a very different type of stream, maintaining only the most recent message of a given key. Click Edit settings -> Delete topic. You are prompted to type the topic name to confirm deleting the topic.