Hello, I have set up a grafana dashboard that has the Log Cleaner metrics added when we upgraded to Apache Kafka 3.5. We didn’t have these metrics before when we were using Kafka 2.7. There is one metric that always show 0%, and this is the Log Cleaner Max Buffer Utilization Percent metric. Other log cleaner metrics like the Cleaner Recopy Percent and Max Clean Time seconds are fine, I see values on those. Does anyone have a dashboard set up with this metric and are you seeing metric values > 0% ?
Also, looking at the Kafka logs, there is a log that shows Buffer Utilization Percent, and I see values there, not just 0%. The Apache Kafka code is different: /* a metric to track the maximum utilization of any thread's buffer in the last cleaning */ https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/log/LogCleaner.scala#L126 /* Buffer utilization stats on logs https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/log/LogCleaner.scala#L484 Thanks in advance for any help or insight that anyone can provide. Regards, Maria
