Stanislav Kozlovski created KAFKA-7819:
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Summary: Trogdor - Improve RoundTripWorker
Key: KAFKA-7819
URL: https://issues.apache.org/jira/browse/KAFKA-7819
Project: Kafka
Issue Type: Improvement
Reporter: Stanislav Kozlovski
Assignee: Stanislav Kozlovski
Trogdor's RoundTripWorker task has a couple of shortcomings:
* Consumer GroupID is hardcoded and consumers use `KafkaConsumer#assign()`:
[https://github.com/apache/kafka/blob/12947f4f944955240fd14ce8b75fab5464ea6808/tools/src/main/java/org/apache/kafka/trogdor/workload/RoundTripWorker.java#L314]
Leaving you unable to run two separate instances of this worker on the same
partition in the same cluster, as the consumers would overwrite each other's
commits. It's probably better to add the task ID to the consumer group
* the task spec's `maxMessages` [is an
integer|https://github.com/apache/kafka/blob/12947f4f944955240fd14ce8b75fab5464ea6808/tools/src/main/java/org/apache/kafka/trogdor/workload/RoundTripWorkloadSpec.java#L39],
leaving you unable to schedule long-winded tasks
* the consumer and producer are not closed gracefully when the task ends
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