James Cheng created KAFKA-3139:
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Summary: JMX metric ProducerRequestPurgatory doesn't exist, docs
seem wrong.
Key: KAFKA-3139
URL: https://issues.apache.org/jira/browse/KAFKA-3139
Project: Kafka
Issue Type: Bug
Reporter: James Cheng
The docs say that there is a JMX metric
{noformat}
kafka.server:type=ProducerRequestPurgatory,name=PurgatorySize
{noformat}
But that doesn't seem to work. Using jconsole to inspect our kafka broker, it
seems like the right metric is
{noformat}
kafka.server:type=DelayedOperationPurgatory,name=PurgatorySize,delayedOperation=Produce
{noformat}
And there are also variants of the above for Fetch, Heartbeat, and Rebalance.
Is the fix to simply update the docs? From what I can see, the docs for this
don't seem auto-generated from code. If it is a simple doc fix, I would like to
take this JIRA.
Btw, what is NumDelayedOperations, and how is it different from PurgatorySize?
{noformat}
kafka.server:type=DelayedOperationPurgatory,name=NumDelayedOperations,delayedOperation=Produce
{noformat}
And should I also update the docs for that?
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