Hello. I have recently started experimenting with running a smokeping probe on a Rasberrypi box (it's a mini pc board, which can run linux booting from an sd card, and comes with network interface and usb ports, etc. The Rasberrypi's card is loaded with a customized version of Debian called Rasbian. I have added the packages needed for the libraries (fping, echoping, the perl libraries, etc) and have tried both adding the package for smokeping (with apt-get) and compiling from source (after of course removing the packaged version).
When I try to run a probe on it using this command line ./bin/smokeping --master-url=http://<myserver>/cgi-bin/smokeping.fcgi --cache-dir=/var/smokeping/ --slave-name=rasberrypi --shared-secret=/var/smokeping/secret.txt I get the normal message that the probe has communicated with the server and has received configuration. But no data is being graphed for this probe so I took a look at the log. This is what it says: /var/log # cat syslog | grep smokeping Feb 21 12:12:04 raspberrypi smokeping[2300]: Starting syslog logging Feb 21 12:12:04 raspberrypi smokeping[2304]: Smokeping version 2.006008 successfully launched. Feb 21 12:12:04 raspberrypi smokeping[2304]: Entering multiprocess mode. Feb 21 12:12:04 raspberrypi smokeping[2304]: No targets defined for probe TelnetIOSPing, skipping. Feb 21 12:12:04 raspberrypi smokeping[2304]: No targets defined for probe CiscoRTTMonEchoICMP, skipping. Feb 21 12:12:04 raspberrypi smokeping[2304]: No targets defined for probe EchoPingHttp, skipping. Feb 21 12:12:04 raspberrypi smokeping[2304]: Child process 2305 started for probe FPing. Feb 21 12:12:04 raspberrypi smokeping[2304]: All probe processes started successfully. Feb 21 12:12:04 raspberrypi smokeping[2305]: FPing: probing 2 targets with step 300 s and offset 258 s. Feb 21 12:14:18 raspberrypi smokeping[2305]: open3: exec of /usr/sbin/fping -C 20 -q -B1 -r1 -i10 <myfirsttarget> <mysecondtarget> failed at /opt/smokeping/bin/../lib/Smokeping/probes/FPing.pm line 143 Feb 21 12:14:18 raspberrypi smokeping[2304]: Child process 2305 (probe FPing) exited unexpectedly with status 256. This is the same exactly as when I run it with the packaged version. After that I took a look at line 143: my $pid = open3($inh,$outh,$errh, @cmd); I tried the debug option which showed the same thing as the log and after that I tried issuing that command myself: /usr/sbin/fping -C 20 -q -B1 -r1 -i10 <myfirsttarget>. That gave me the message that there was no fping command at /usr/sbin. I found out it was at /usr/bin directory. So I created a symbolic link to overcome this problem. I believe the slave takes the path for the probe from the master. Is there any way I can change that on the probe? Without using that symbolic link? Using the Rasberrypi as a probe could prove to be very advantageous as it has very low power consumption and can be easily shipped and installed at remote locations (where you would need a probe). Greetings to all, ----------------------------------------------------- Ioannis Theodoridis Network & Systems Engineer -----------------------------------------------------
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