On Wed, Sep 1, 2010 at 9:03 AM, Matthew Conway <m...@backupify.com> wrote: > If you need to tunnel jconsole to a remote cassandra instance, the SSH socks > proxy (ssh -D)is the easiest, least intrusive way. More details: > > http://simplygenius.com/2010/08/jconsole-via-socks-ssh-tunnel.html > > Matt > > Matts approach makes good sense for a interactive JMX session.
RMI is fubar. All my cacti templates use JMX to pull data from hadoop, cassandra,etc. Though it is easy enough to tunnel your system tunneling your monitoring station is harder I converted all my scripts that originally ran remotely with jmx, to run locally on the host, and then I call them with nagios remote plugin executor. # tail -1 /etc/nagios/nrpe.cfg command[run_caches]=/usr/lib64/nagios/plugins/run_caches.sh $ARG1$ $ARG2$ $ARG3$ $ARG4$ $ARG5$ $ARG6$ # /usr/lib/nagios/plugins/check_nrpe -H cdbsd01.xxxxxx -c run_caches -a cdbsd01.hadoop.pvt 8585 dummyUser dummyPass XXXXRowCache YYYYData Size:1000003 Capacity:1000003 Hits:20770366 Requests:26687574 RecentHitRate:0.10300684727597499 This lets me collect all the performance data over NRPE and avoids all the hostname issues, nat, and port issues. Edward
