Cloudkick does monitor JMX now. That + custom alerts is pretty powerful. I work for Cloudkick, btw
On Sun, Sep 12, 2010 at 9:39 AM, Dave Viner <davevi...@pobox.com> wrote: > I haven't tried cacti, but I'm using CloudKick as an external service for > monitoring Cassandra. It's super easy to get setup. Happy to share my > setup if that'd help. > > It doesn't currently monitor JMX information, but it does offer some basic > checks like thread pool and column family stats - > https://support.cloudkick.com/Cassandra_Checks. > > Dave Viner > > > On Fri, Sep 10, 2010 at 8:31 PM, Edward Capriolo <edlinuxg...@gmail.com>wrote: > >> On Fri, Sep 10, 2010 at 7:29 PM, aaron morton <aa...@thelastpickle.com> >> wrote: >> > Am going through the rather painful process of trying to monitor >> cassandra using Cacti (it's what we use at work). At the moment it feels >> like a losing battle :) >> > >> > Does anyone know of some cacti resources for monitoring the JVM or >> Cassandra metrics other than... >> > >> > mysql-cacti-templates >> > http://code.google.com/p/mysql-cacti-templates/ >> > - provides templates and data sources that require ssh and can monitor >> JVM heap and a few things. >> > >> > Cassandra-cacti-m6 >> > http://www.jointhegrid.com/cassandra/cassandra-cacti-m6.jsp >> > Coded for version 0.6* , have made some changes to stop it looking for >> stats that no longer exist. Missing some metrics I think but it's probably >> the best bet so far. If I get it working I'll contribute it back to them. >> Most of the problems were probably down the how much effort it takes to >> setup cacti. >> > >> > jmxterm >> > http://www.cyclopsgroup.org/projects/jmxterm/ >> > Allows for command line access to JMX. I started down the path of >> writing a cacti data source to use this just to see how it worked. Looks >> like a lot of work. >> > >> > Thanks for any advice. >> > Aaron >> > >> > >> >> Setting up cacti is easy, the second time, and third time :) >> As for cassandra-cacti-m6 (i am the author). Unfortunately, I have >> been fighting the jmx switcharo battle for about 3 years now >> hadoop/hbase/cassandra/hornetq/vserver >> >> In a nutshell there is ALWAYS work involved. First, is because as you >> noticed attributes change/remove/add/renamed. Second it takes a human >> to logically group things together. For example, if you have two items >> "cache hits" and "cache misses". You really do not want two separate >> graphs that will scale independently. You want one slick stack graph, >> with nice colors, and you want a CDEF to calculate the cache hit >> percentage by dividing one into the other and show that at the bottom. >> >> If you want to have a 7.0 branch to cassandra-cacti-m6 I would love >> the help. We are not on 7.0 yet so I have not had the time just to go >> out and make graphs for a version we are not using yet :) but if you >> come up with patches they are happily accepted. >> >> Edward >> > > -- Dan Di Spaltro
