[Kafka 0.10.2] CruiseControlMetricsReporter cannot be cast to kafka.metrics.KafkaMetricsReporter about cruise-control

[becketqin]

@jameskyle Please use the config metric.reporters instead of kafka.metrics.reporters. Also which version of Kafka did you run?

[jameskyle]

hey, @becketqin, thanks for the response. This cluster is running: 0.10.2.

[wangzzu]

@becketqin It will be better if there is an environmental requirement in README.

[jameskyle]

With the fix suggested I don't get a startup error. However, I do get this output constantly:

  [2017-09-08 17:33:04,661] INFO Skipping best proposal precomputing because load monitor does not have enough snapshots. (com.linkedin.kafka.cruisecontrol.analyzer.GoalOptimizer)
    [2017-09-08 17:33:34,661] INFO Skipping best proposal precomputing because load monitor does not have enough snapshots. (com.linkedin.kafka.cruisecontrol.analyzer.GoalOptimizer)
    [2017-09-08 17:34:04,661] INFO Skipping best proposal precomputing because load monitor does not have enough snapshots. (com.linkedin.kafka.cruisecontrol.analyzer.GoalOptimizer)
    [2017-09-08 17:34:34,661] INFO Skipping best proposal precomputing because load monitor does not have enough snapshots. (com.linkedin.kafka.cruisecontrol.analyzer.GoalOptimizer)

At first, the collector was timing out before it could gather a sample. I tried increasing the metric.sampling.interval.ms to as much as 4 hours, but still nada.

[jameskyle]

Just to update, I connected to the '__CruiseControlMetrics' topic and read from it, it certainly has metrics stored there. And it's being updated every so often.

tried to check the offsets for the cruisecontrol consumer group, but it turned up empty.

[jameskyle]

And after running for many hours, a restart has this log:

[2017-09-08 19:56:10,946] INFO Sample loading finished. Loaded 0 partition metrics samples and 0 broker metric samples in 1198 ms (com.linkedin.kafka.cruisecontrol.monitor.sampling.KafkaSampleStore)

[becketqin]

@jameskyle What is your message format version configuration? Cruise Control assumes the message format version contains a timestamp. It should be 0.10.0 and above.

[jameskyle]

ahhh, that's it. protocol and message formats are 0.8.2 on these.

let me fiddle that.