Hi, On Mon, Nov 05, 2012 at 01:31:24PM +0100, Stian Øvrevåge wrote: > Hi list, trying to configure notifications but I find the > documentation quite confusing.
Which parts of the documentation are not clear to you? > My current non-working test config looks like this: > > From collectd.conf: > > LoadPlugin exec > <Plugin exec> > NotificationExec "user" "echo 'notification' >> /home/user/notiftest" > </Plugin> The 'exec' command is not run inside a shell but it's executed using execvp(3). Thus, your command does not work. Rather, collectd tries to execute some command called "echo 'notification' >> /home/user/notiftest". (Side-note: In order to specify a command plus arguments, you need to provide multiple arguments to the "NotificationExec" option: NotificationExec "user" "cmd" "foo" "bar") > LoadPlugin snmp > <Plugin snmp> > > <Data "cisco_cpu"> > Type "cisco_cpu" > Table true > Values "CISCO-PROCESS-MIB::cpmCPUTotal5secRev" > "CISCO-PROCESS-MIB::cpmCPUTotal1minRev" > "CISCO-PROCESS-MIB::cpmCPUTotal5minRev" > </Data> > > <Host "test-switch"> > Address "10.0.0.1" > Version 2 > Community "public" > Collect "cisco_cpu" > Interval 60 > </Host> > > </Plugin> > > <Threshold> > <Host "test-switch"> > <Plugin "snmp"> > <Type "cisco_cpu"> > Instance "1" // Tried with and without this > WarningMin 0.00 > WarningMax 8.00 > FailureMin 0.00 > FailureMax 12.00 > DataSource "cpu5sec" // Tried with and without this > </Type> > </Plugin> > </Host> > </Threshold> This looks fine to me and should match the example data below. > The data is collected fine from the switch: > > rrdtool lastupdate cisco_cpu-1.rrd > cpu5sec cpu1min cpu5min > 1352118105: 22.000000 10.000000 9.000000 > > But nothing is written to the notiftest-file so I'm assuming the > command is not executed. > > I'm running collectd in foreground but it gives no errors there, nor > in the syslog. The problem is that collectd (the exec plugin) connects stdout and stderr of the child process to a pipe but does not read from that. Thus, you're not seeing any messages that execvp() failed. I think we should let the exec plugin read everything from stderr and log that as error messages. HTH, Sebastian -- Sebastian "tokkee" Harl +++ GnuPG-ID: 0x8501C7FC +++ http://tokkee.org/ Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety. -- Benjamin Franklin
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