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From Nitan Kainth <ni...@bamlabs.com>
Subject Re: read/write request counts and write size of each write
Date Wed, 26 Jul 2017 20:42:24 GMT
Hey Roger,

I downloaded and saved the file in /var/lib/cassandra, but getting same error:

 java -jar /tmp/jmxterm-1.0-alpha-4-uber.jar --url localhost:7199 
Welcome to JMX terminal. Type "help" for available commands.
$>run -b org.apache.cassandra.metrics:type=ClientRequest scope=CASWrite name=MutationSizeHistogram
#InstanceNotFoundException: org.apache.cassandra.metrics:type=ClientRequest

I tried using mx4 jar file:

 java -jar /var/lib/cassandra/mx4j-3.0.1.jar url localhost:7199 
no main manifest attribute, in /var/lib/cassandra/mx4j-3.0.1.jar



> On Jul 26, 2017, at 11:50 AM, Roger Warner <rwarner@pandora.com> wrote:
> 
> You need to also have the mx4j jar in your Cassandra lib directory.   Double checking
you did that – its not included with the distro.    You have to download it.
>  
> http://mx4j.sourceforge.net/ <http://mx4j.sourceforge.net/>
>  
> R
>  
> From: Nitan Kainth <nitan@sleepiqlabs.com>
> Reply-To: "user@cassandra.apache.org" <user@cassandra.apache.org>
> Date: Wednesday, July 26, 2017 at 8:22 AM
> To: "User cassandra.apache.org" <user@cassandra.apache.org>
> Subject: Re: read/write request counts and write size of each write
>  
> Thank you very much Kurt. 
>  
> I am not a java guy, need one small help. I initiated JMX connection but I am getting
some exception:
>  
> java -jar ~/jmxterm-1.0-alpha-4-uber.jar --url localhost:7199 
> Welcome to JMX terminal. Type "help" for available commands.
> $>run -b org.apache.cassandra.metrics:type=ClientRequest scope=CASWrite name=MutationSizeHistogram
> #InstanceNotFoundException: org.apache.cassandra.metrics:type=ClientRequest
> 
> 
> I verified, Cassandra is running on my machine.
> 
> 
>  
> On Tue, Jul 25, 2017 at 9:36 PM, kurt greaves <kurt@instaclustr.com <mailto:kurt@instaclustr.com>>
wrote:
> Looks like you can collect MutationSizeHistogram for each write as well from the coordinator,
in regards to write request size. See the Write request section underhttps://cassandra.apache.org/doc/latest/operating/metrics.html#client-request-metrics
<https://urldefense.proofpoint.com/v2/url?u=https-3A__cassandra.apache.org_doc_latest_operating_metrics.html-23client-2Drequest-2Dmetrics&d=DwMFaQ&c=gFTBenQ7Vj71sUi1A4CkFnmPzqwDo07QsHw-JRepxyw&r=_V9IzBxaV864n6VoHCzfArKKHY9Xqk-DWw-wAB9JU7E&m=_TOyM3vR40V4Xvh1nWnClVq3MYuybHfhdtWfkIGvVlk&s=vgnwngzAkTiksz5qoRNA71R9UZTCiYLkjw4qXe5nK74&e=>
>  
>  
>  


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