Thanks, the java agent option is missing in the Cassandra.bat file https://issues.apache.org/jira/browse/CASSANDRA-2787
From: aaron morton [mailto:aa...@thelastpickle.com] Sent: zondag 19 juni 2011 21:33 To: user@cassandra.apache.org Subject: Re: MemoryMeter uninitialized (jamm not specified as java agent) 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 Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com 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 cassandra-env.sh 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