Hi Michal,
I have followed the steps below for the configuring Jolokia with kafka
-
Install the jolokia JVM-Agent jar from their site.
-
Copy the jolokia jar file in the /opt/jolokia-agent/, create jolokia-agent
directory as it doesn’t exist already.
-
Move to the directory where your Kafka exists run the following command
$ export KAFKA_OPTS="$KAFKA_OPTS
-javaagent:/opt/jolokia-agent/jolokia-jvm-1.3.7-agent.jar"
-
To expose the kafka metrics open the this file
/kafka/bin/kafka-server-start.sh file and find this (exec
$base_dir/kafka-run-class.sh $EXTRA_ARGS kafka.Kafka "$@") line and paste
the line given below above it.
export JMX_PORT=${JMX_PORT:-9999}
-
Restart the zookeeper and broker
I think the issue is with the way I am exposing the metrics. I followed the
following link to enable JMX on kafka broker (
https://stackoverflow.com/questions/36708384/enable-jmx-on-kafka-brokers).
The issue that I am still facing is that when I list all the metrics using (
http://localhost:9999/jolokia/list) address. i dont get metrics related to:
<host>:8074/jolokia/read/kafka.server:*
<host>:8074/jolokia/read/kafka.controller:*
<host>:8074/jolokia/read/kafka.log:*
<host>:8074/jolokia/read/kafka.network:*
Can you check what I have done wrong?
Thanks
With Regards
Irtiza
On Fri, Dec 8, 2017 at 8:19 PM, Michal Michalski <
michal.michal...@zalando.ie> wrote:
> Hi,
>
> We have no modifications in that file - what we do is having a "wrapper"
> that's just a Docker "entrypoint" (just a bash script) which contents is:
>
> export KAFKA_OPTS="$KAFKA_OPTS
> -javaagent:/jolokia-jvm-agent.jar=port=8074,host=0.0.0.0"
> exec ${KAFKA_DIR}/bin/kafka-server-start.sh
> ${KAFKA_DIR}/config/server.properties
>
> Regarding your second question - we have an in-house monitoring solution
> that allows querying that endpoint and extracting metrics from the JSON
> returned.
>
> If you're asking about what you should monitor, I think these links will
> answer your question:
> https://docs.confluent.io/3.0.0/kafka/monitoring.html
> https://www.datadoghq.com/blog/monitoring-kafka-performance-metrics/
>
>
> On 8 December 2017 at 14:56, Irtiza Ali <i...@an10.io> wrote:
>
> > Thanks Michal, can you kindly send me you kafka-run-class.sh and
> > kafka-server-start.sh file, I have look what have you done. Because I
> have
> > done same thing that you explained above but when i do this <
> > http://localhost:9999/jolokia/list> i get only metrics for the zookeeper
> > but not the above metrics.
> >
> > How are you using Jolokia for monitoring kafka cluster??
> >
> > Thanks in advance
> >
> > On Fri, Dec 8, 2017 at 3:10 PM, Michal Michalski <
> > michal.michal...@zalando.ie> wrote:
> >
> > > Hi Irtiza,
> > >
> > > I don't have any tutorial, but I can tell you what we do :-)
> > >
> > > First of all we have Jolokia agent jar included in our Kafka Docker
> > image.
> > > Then we append this to KAFKA_OPTS
> > >
> > > -javaagent:/jolokia-jvm-agent.jar=port=8074,host=0.0.0.0
> > >
> > >
> > > Relevant port is then "exposed" in Docker image and "allowed" in AWS
> > > Security Group.
> > > Then our monitoring tool is querying the following endpoins (just a
> HTTP
> > > GET query) these endpoints to get a list of all the metrics we need:
> > >
> > > <host>:8074/jolokia/read/kafka.server:*
> > > <host>:8074/jolokia/read/kafka.controller:*
> > > <host>:8074/jolokia/read/kafka.log:*
> > > <host>:8074/jolokia/read/kafka.network:*
> > > <host>:8074/jolokia/read/java.lang:type=Memory
> > >
> > >
> > > And that's it, we get a nice JSON that we can use the way we want :-)
> > > I hope I didn't miss anything, but this should be it.
> > >
> > > M.
> > >
> > >
> > > On 8 December 2017 at 09:28, Irtiza Ali <i...@an10.io> wrote:
> > >
> > > > Hello Michal,
> > > >
> > > > Can you send me link to tutorial or provide some resources for the
> > > Jolokia
> > > > configuration with kafka>
> > > >
> > > >
> > > > Thank you
> > > > Irtiza
> > > >
> > > > On Wed, Dec 6, 2017 at 8:00 PM, Michal Michalski <
> > > > michal.michal...@zalando.ie> wrote:
> > > >
> > > > > Hi Irtiza,
> > > > >
> > > > > We're using Jolokia and we had no problems with it.
> > > > > It would be useful to know what exactly you did (how you "plugged
> in"
> > > > > Jolokia, how you configured it, what endpoint are you querying
> etc.)
> > to
> > > > > help you.
> > > > >
> > > > > On 6 December 2017 at 10:36, Irtiza Ali <i...@an10.io> wrote:
> > > > >
> > > > > > Hello everyone,
> > > > > >
> > > > > > I am working python based Kafka monitoring application. I am
> unable
> > > to
> > > > > > figure out how to retrieve the metrics using Jolokia. I have
> enable
> > > the
> > > > > > port for metrics retrieval to 9999.
> > > > > >
> > > > > > I Have two questions
> > > > > >
> > > > > > 1) Is there something that I am not doing correctly.
> > > > > > 2) Is there some other way to do it.
> > > > > >
> > > > > > With Regards
> > > > > > Irtiza Alli
> > > > > >
> > > > >
> > > >
> > >
> >
>
