Hi all. I've started using collected recently and I love it. I've tried a lot of perf monitoring tools and finally I've found a perf monitoring tool that makes sens (IMHO) :)
I've run in to an interesting problem though. At work we have several Linux boxes running OpenVZ. I'd like to monitor the hardware nodes (HNs) and the virtual environments (VEs) using collectd. I know I can use the openvz plugin to do this but... I'd like to store all the data (CSV and/or RRD) on a VE and have all HNs send the reports. I can have all the HNs report fine when they send to a HN but when I send to a VE it failed. I have tried this at two different physical locations and got exactly the same problems. The hardware at the two different sites is completely different but all HNs are running Debian 5.0.4 (Lenny) with kernel 2.6.26-2-openvz-amd64. I used tshark to examine the connection today and saw something quite unusual. I'be RTFMed on this but with no luck. In the output below 192.168.10.192 is the VE and 192.168.10.19 is the HN. The VE is running on a seperate HN. In general apps don't know or care they are running on a VE so I was surprised to have problems. OTOH I suppose we rarely if ever use UDP services with VEs. I may be posting to the OpenVZ lists too. If this problem was common to UDP on VEs I'd expect to have found reports about it but I didn't. This appears to have for every packet sent: # tshark udp port 25826 0.000000 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 2.038417 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 2.040255 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 2.040416 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 2.090841 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 62.036655 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 62.036794 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 62.038321 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 62.038844 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 122.035030 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) 122.035150 192.168.10.19 -> 192.168.10.192 IP Bogus IP header length (0, must be at least 20) Cheers, Rob -- Email: rob...@timetraveller.org IRC: Solver Web: http://www.practicalsysadmin.com Open Source: The revolution that silently changed the world _______________________________________________ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd