如何在不删除主题的情况下删除/清除Kafka排队的消息 [英] How do I delete/clean Kafka queued messages without deleting Topic

问题描述

是否可以在不删除Kafka主题的情况下删除队列消息?
我想在激活使用者时删除队列消息.

我知道有几种类似的方法:

1. 重置保留时间

   $ ./bin/kafka-topics.sh --zookeeper本地主机:2181 --alter --topic MyTopic --configtention.ms = 1000

2. 删除kafka文件

   $ rm -rf/data/kafka-logs/< topic/Partition_name>

解决方案

在0.11或更高版本中，您可以运行 bin/kafka-delete-records.sh 命令将邮件标记为删除.

https://github.com/apache/kafka/blob/trunk/bin/kafka-delete-records.sh

例如，发布100条消息

  seq 100 |./bin/kafka-console-producer.sh --broker-list localhost:9092 --topic mytest 

然后使用新的 kafka-delete-records.sh 删除这100条消息中的90条命令行工具

 <代码> ./bin/kafka-delete-records.sh --bootstrap-server localhost:9092 --offset-json-file ./offsetfile.json 

其中 offsetfile.json 包含

 <代码> {"partitions":[{"topic":"mytest"，"partition":0，"offset":90}]，"version":1} 

，然后从头开始使用这些消息，以验证100条消息中的90条确实被标记为已删除.

 <代码> ./bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic mytest --from-beginning919293949596979899100 

Is there any way to delete queue messages without deleting Kafka topics?
I want to delete queue messages when activating the consumer.

I know there are several ways like:

1. Resetting retention time

   $ ./bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic MyTopic --config retention.ms=1000

2. Deleting kafka files

   $ rm -rf /data/kafka-logs/<topic/Partition_name>

解决方案

In 0.11 or higher you can run the bin/kafka-delete-records.sh command to mark messages for deletion.

https://github.com/apache/kafka/blob/trunk/bin/kafka-delete-records.sh

For example, publish 100 messages

seq 100 | ./bin/kafka-console-producer.sh --broker-list localhost:9092 --topic mytest

then delete 90 of those 100 messages with the new kafka-delete-records.sh command line tool

./bin/kafka-delete-records.sh --bootstrap-server localhost:9092 --offset-json-file ./offsetfile.json

where offsetfile.json contains

 {"partitions": [{"topic": "mytest", "partition": 0, "offset": 90}], "version":1 }

and then consume the messages from the beginning to verify that 90 of the 100 messages are indeed marked as deleted.

./bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic mytest --from-beginning
91
92
93
94
95
96
97
98
99
100

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