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From aaron morton <>
Subject Re: MemoryMeter uninitialized (jamm not specified as java agent)
Date Sun, 19 Jun 2011 19:33:17 GMT
What do you get for 

$ java -version
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07-334-10M3326)
Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02-334, mixed mode)

Also you can check if the wrapper has correctly detected things with 

ps aux | grep javaagent

The args to the java process should include -javaagent:bin/../lib/jamm-0.2.2.jar 


Aaron Morton
Freelance Cassandra Developer

On 17 Jun 2011, at 22:18, Rene Kochen wrote:

> Since using cassandra 0.8, I see the following warning:
> WARN 12:05:59,807 MemoryMeter uninitialized (jamm not specified as java agent); assuming
liveRatio of 10.0.  Usually this means disabled jamm because you are using
a buggy JRE; upgrade to the Sun JRE instead
> I'am using Sun JRE.
> What can I do to resolve this? What are the consequences of this warning?
> Thanx,
> Rene

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