-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello Ullrich,
> What totem does it detect network problems when there are none: > > # grep ringid.*FAULTY /var/log/messages |wc -l > 1981 Yup. What information from your specific setup can you contribute to this particular discussion about Digimer's problem? >> This is something that no other protocol you encounter on the internet/LAN >> is supposed to do. > > Definitely not: 0 interface errors on any interface, not communication > problems. What does protocol error detection have to do with interface errors? Protocol errors aren't contained in interface errors. > Even NFS over UDP is much smarter than TOTEM is. NFS over UDP is for bulk transfer of data. You're comparing apples to bananas. What improvement for TOTEM do you want to take from NFS over UDP? NFS over UDP has congestion control. Is it that what you mean? > If you have a central authority that can decide on each eand every priority > you are right. I was talking from practical experience... In a point-to-point topology, like Digimer is using (host-switch-host), the switch in between basicly guarantees that every valid frame that enters one port also exits another port of the switch. This basicly makes the switch vanish here. It's no longer relevant for this, assuming that it does its job and the switching matrix can handle the frames, which it probably does. If it can not do that, then the switch should probably be replaced. The remaining two points are the interfaces of the hosts. Digimer uses bonds. So we have two interfaces on either side. The interfaces themselves do not do any prioritization. They just pass valid frames through to the OS over interrupts. The central points now are the bonding devices, which have traffic congestion control algorithms attached to them, too. Not for ingress, because Linux can't do it, but for egress. The egress, as I deducted in other emails, is fine. The pfifo_fast qdisc is the central point. There's nothing else in this architecture that influences the transmission between the two points. Of course, this model is idealized. Maybe there are outside factors that cause the problems, maybe there are not. This is something I cannot know about this setup. - -- Mit freundlichen Grüßen/Kind Regards, Noel Kuntze GPG Key ID: 0x63EC6658 Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJV9uvuAAoJEDg5KY9j7GZYf94P/2LjVa7+L4+VheXnUjG6s4bG zE8tWte/ZGHyijJsF/hrA2WgBQJAbaYrcwCC3e0aJpwRwocsggkUfbhdffrZ1CGs D7s56ELTNZP8cL19T5VtVB/Ki5A7G8zzdqDmq7lo+/H3maH9Ffhl0AKvXCFM5g/L c2EK3Mnc2vT5uXkfVwKeJAATmD3pFh9GFKkyLCwYOTL0e1t1VO6ZyyHGwMHDLkwg pcHMxWlEkHfq+L94Fk6Tba6POJAVwOh3F3Q2DnKtot7+w4lNo4bPN2xZNGqvKRU5 75WOsOfgGTC39qEJ0dMv7gA2GxX4J4l909Cj9StVX63GpbXqfQ+d+s5LwzXw8tiJ aIeqlo6BegAF2/qsJZXT6dP0ofRTEkb0KAzUM1S4TaDaQM4MkFJgDCRlDiBJc+U6 j9D8fLd0c8Dm8Yn7GOvix4GwQPkcZV6RSOI5ErZtDlEGfI+ctRcfiIsoHqtFwHZJ 8mzlqu4etGKEMDJAfhR44z3Ui0TCGk8y/eMV0ZldyBblRNth7gDJ1r/1IFpQuTWi xK39ri6ow5CMdTeTqQKu4O889bbYyOZ22hXSBCkHbmtvFK2cec4wqd6f5iEsxY49 hvqIlw4ls+B9Eh+Nvp2jX6O/w47r93rewz6CCnjcA1y9A+DpSMQUCGd6k2znVimy 3tbNOBQCdI5lKULqVMIU =d5MI -----END PGP SIGNATURE----- _______________________________________________ Users mailing list: [email protected] http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
