rhauch commented on pull request #8654:
URL: https://github.com/apache/kafka/pull/8654#issuecomment-628682601
BTW, I've improved the error message when Connect's `TopicAdmin` fails to
create a topic because of an unknown topic setting:
> Uncaught exception in herder work thread, exiting:
(org.apache.kafka.connect.runtime.distributed.DistributedHerder:297)
org.apache.kafka.connect.errors.ConnectException: Unable to create topic(s)
'mm2-offsets.backup.internal': Unknown topic config name:
topic.replication.factor
Here's what this looks like in the log message just before the herder exits:
```
[2020-05-14 09:36:22,348] ERROR [Worker clientId=connect-2,
groupId=backup-mm2] Uncaught exception in herder work thread, exiting:
(org.apache.kafka.connect.runtime.distributed.DistributedHerder:297)
org.apache.kafka.connect.errors.ConnectException: Unable to create topic(s)
'mm2-offsets.backup.internal': Unknown topic config name:
topic.replication.factor
at
org.apache.kafka.connect.util.TopicAdmin.createTopics(TopicAdmin.java:305)
at
org.apache.kafka.connect.storage.KafkaOffsetBackingStore$1.run(KafkaOffsetBackingStore.java:105)
at
org.apache.kafka.connect.util.KafkaBasedLog.start(KafkaBasedLog.java:128)
at
org.apache.kafka.connect.storage.KafkaOffsetBackingStore.start(KafkaOffsetBackingStore.java:115)
at org.apache.kafka.connect.runtime.Worker.start(Worker.java:186)
at
org.apache.kafka.connect.runtime.AbstractHerder.startServices(AbstractHerder.java:123)
at
org.apache.kafka.connect.runtime.distributed.DistributedHerder.run(DistributedHerder.java:284)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kafka.common.errors.InvalidConfigurationException:
Unknown topic config name: topic.replication.factor
```
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