Cruise Control getting stuck in Bootstrapping

Hello, I am trying to install Cruise-Control for monitoring our Kafka Environment. I have a distributed Kafka Environment with 3 VMs (Linux OS) and each VM has one Kafka Broker and one Zookeeper in it. So in the cruisecontrol.properties file I have: bootstrap.servers=my-domain-dev01.com:9093,my-domain-dev02.com:9094,my-domain-dev03.com:9095 where each my-domain-dev# is a separate VM. I also have the following for the Zookeeper: zookeeper.connect=my-domain-dev01.com:2183,my-domain-dev02.com:2184,my-domain-dev03.com:2185

At this point I am able to see Kafka Cluster State just fine but when it comes to Metrics I am having the following issue:

[2020-10-08 10:07:53,467] INFO Finished sampling in 254 ms. (com.linkedin.kafka.cruisecontrol.monitor.sampling.MetricFetcherManager)
[2020-10-08 10:07:53,468] INFO Kicking off metric sampling for time range [770800000, 771000000], duration 200000 ms with timeout 200000 ms. (com.linkedin.kafka.cruisecontrol.monitor.sampling.MetricFetcherManager)
[2020-10-08 10:07:53,495] INFO [Consumer clientId=CruiseControlMetricsReporterSampler-8036022001223885340-consumer-833857043, groupId=CruiseControlMetricsReporterSampler-8036022001223885340] Seeking to offset 22102016 for partition __CruiseControlMetrics-0 (org.apache.kafka.clients.consumer.KafkaConsumer)
[2020-10-08 10:07:53,702] INFO Finished sampling for topic partitions [__CruiseControlMetrics-0] in time range [770800000,771000000]. Collected 0 metrics. (com.linkedin.kafka.cruisecontrol.monitor.sampling.CruiseControlMetricsReporterSampler)
[2020-10-08 10:07:53,702] INFO Collected 0 partition metric samples for 0 partitions. Total partition assigned: 218. (com.linkedin.kafka.cruisecontrol.monitor.sampling.SamplingFetcher)
[2020-10-08 10:07:53,702] INFO Collected 0 broker metric samples for 0 brokers. (com.linkedin.kafka.cruisecontrol.monitor.sampling.SamplingFetcher)

As you can see it is not collecting any metrics and I noticed that the timestamps are way off: time range [770800000, 771000000] = time range [June 5, 1994 7:06:40 AM, June 7, 1994 2:40:00 PM]

Could this be the issue? Is there a way to fix this? What else could I look into?

I can see records being populated in __CruiseControlMetrics continuously but not __KafkaCruiseControlPartitionMetricSamples or __KafkaCruiseControlPartitionMetricSamples.

I would appreciate any guidance on this.

Thank you.

[jrevillard]

@efeg ok, I was using the CC UI Bootstrap “Metric button”. I wasn’t aware that this is the normal behavior.

Thanks

[efeg]

For info, after restart, (updated CC version to v2.5.28) it did it again when I clicked on “Boostrap”:

@jrevillard What does it mean to click on Bootstrap? Are you using the bootstrap endpoint of Cruise Control (CC)? If so, this endpoint is used only for development purposes and is not really meant to be used for bootstrapping a CC instance. When CC starts, it automatically bootstraps w/o the need for any extra call.