Greg Harris created KAFKA-9830:
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Summary: DeadLetterQueueReporter leaks KafkaProducer instance
Key: KAFKA-9830
URL: https://issues.apache.org/jira/browse/KAFKA-9830
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Affects Versions: 2.0.0
Reporter: Greg Harris
The DeadLetterQueueReporter (introduced by KAFKA-6738) creates a KafkaProducer
to report errors to Kafka, but does not clean up the producer, leaving many
idle network threads open after tasks are stopped.
Reproduction steps:
Start a task that has a non-empty DLQ topic name
Stop the task
Observe the list of running threads
Expected result:
There is no thread related to the stopped task's DLQ left running
Actual result:
There is a thread named something like kafka-producer-network-thread |
connector-dlq-producer-task-0" #1234 left running
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