OK, I understand.
When I have this problem, I use tcpdump.
It will not tell you if the primary collectd server collects the data (I
know no other way than collectdctl or "nc -U" on the unix socket, which
is the same), but at least you will see if your client is sending data
and if your server is receiving it.
When tcpdump says that your server is receiving the data, you really
have to go inside the collectd process to check and the 2 ways I know
are 1/ collectdctl and "nc -U" and 2/ hacking tools like strace or
systemd. Of course I only use "nc -U".
Good luck !
Regards,
Yves
Le 2014-05-06 08:45, Stuart Cracraft a écrit :
Hi Yves!
We are speaking here of on the primary collectd server, not the clients
where the data is being collected, hence the lsof could only be run
remotely.
We're looking for something entirely local on the primary collectd
server, not
farming out the question to the clients.
The only method I know of on the server (besides ssh/rsh/telnet/etc) is
to run collectdctl for the particular item and if it doesn't show, then
assume
the data is not available.
Stuart
On May 5, 2014, at 11:42 PM, Yves Mettier <[email protected]> wrote:
Hello,
Use lsof (lsof -p <pid>) to know what plugins are loaded.
This is NOT a way to find out if a plugin exists and is collecting.
But it IS a way to know that a plugin is NOT loaded and NOT collecting
if you do not find it in the list.
Regards,
Yves
Le 2014-05-06 01:23, Stuart Cracraft a écrit :
On a collectd server, other than running collectdctl to find out if
plugin ABC
exists and is collecting for a given collectd client of the collectd
server,
is there any other approach from the server to determine if the
plugin
is collecting?
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Stuart Cracraft
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