On 12/19/2012 1:39 AM, Bernd Fehling wrote:
Hi Shawn,
actually I use munin for monitoring but just checked with jvisualvm
which also runs fine for remote monitoring.
You might try the following:
http://www.codefactorycr.com/java-visualvm-to-profile-a-remote-server.html
You have to:
- generate a policy file on the server to be monitored
- start jstatd on the server to be monitored
- have jmx enabled for jetty or tomcat or ...
- should have jmx protected with password
I have all the jmx setup for jetty, except for jmxremote.access. I am
not doing any readwrite access, it's all read only. Remote monitoring
is working - I can connect jconsole to JMX and see graph data. What I
don't get is the "Threads" graph. It is greyed out and has no line.
jconsole has no idea how many threads my app is using and can't show
them to me.
I had never used jvisualvm before, so I tried it just now. It looks like
jvisualvm can count the threads, but it can't get a thread dump or
display the threads. I'm using oracle jdk 1.7.0_10 on the linux x64
server. The Win7 x64 machine I am trying jconsole and jvisualvm on
right now has 1.7.0_03, but I have tried jconsole on 1.7.0_09 and
1.7.0_10 for Win7 x64 as well.When I get to work, I will try jvisualvm
on 1.7.0_10.
Is the problem with threads expected?
Thanks,
Shawn
