Good evening. I have read through section of monitoring. I tried to map
each section to corresponding JMX attribute. I will appreciate if you
answer a few questions bellow.
Thanks so much in advance,
Vadim
What this JMX
"kafka.controller":type="KafkaController",name="ActiveControllerCount" for?
The rate of data in and out of the cluster and the number of messages
written
Which jmx attributes should I monitor? Since I should alert on this What
are acceptable changes? What are not?
The log flush rate and the time taken to flush the log
"kafka.log":type="LogFlushStats",name="LogFlushRateAndTimeMs"
Which attribute I should be watching and what acceptable deviation change
before I should alert
The number of partitions that have replicas that are down or have
fallen behind and are underreplicated.
Is this the JMX
"kafka.cluster":type="Partition",name="buypets-0-UnderReplicated" that will
show replicas that are down?
Unclean leader elections. This shouldn't happen.
"kafka.controller":type="ControllerStats",name="UncleanLeaderElectionsPerSec".
I assume that should always be 0 and if its not 0 we have problem.
Number of partitions each node is the leader for.
Which JMX attribute(s) monitors this?
Leader elections: we track each time this happens and how long it took:
"kafka.controller":type="ControllerStats",name="LeaderElectionRateAndTimeMs"
Any changes to the ISR
Which JMX attribute I should monitor for this? Should I alert on this?
What are reasonable changes? Which are not?
The number of produce requests waiting on replication to report back
Which JMX attribute I should monitor for this? Should I alert on this?
What are reasonable changes? Which are not?
The number of fetch requests waiting on data to arrive
Which JMX attribute I should monitor for this? Should I alert on this?
What are reasonable changes? Which are not?
