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https://issues.apache.org/jira/browse/KAFKA-5000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gwen Shapira resolved KAFKA-5000.
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Resolution: Fixed
Metrics seem like a better indicator than logs.
> Framework should log some progress information regularly to assist in
> troubleshooting
> -------------------------------------------------------------------------------------
>
> Key: KAFKA-5000
> URL: https://issues.apache.org/jira/browse/KAFKA-5000
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Reporter: Gwen Shapira
> Priority: Major
>
> We get many questions of the type:
> "I started a connector, it doesn't seem to make any progress, I don't know
> what to do"
> I think that periodic "progress reports" on the worker logs may help.
> We have the offset commit message: "INFO
> WorkerSinkTask{id=cassandra-sink-connector-0} Committing offsets
> (org.apache.kafka.connect.runtime.WorkerSinkTask:244)"
> But I think we'd also want to know: topic, partition, offsets, how many rows
> were read from source/kafka and how many were successfully written.
> This will help determine if there is any progress being made and whether some
> partitions are "stuck" for some reason.
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