>>> "Lentes, Bernd" <[email protected]> schrieb am 23.05.2019 um 15:01 in Nachricht <1029244418.9784641.1558616472505.javamail.zim...@helmholtz-muenchen.de>:
> > ‑‑‑‑‑ On May 20, 2019, at 8:28 AM, Ulrich Windl [email protected]‑regensburg.de > wrote: > >>>>> "Lentes, Bernd" <bernd.lentes@helmholtz‑muenchen.de> schrieb am 16.05.2019 >> um >> 17:10 in Nachricht >> <1151882511.6631123.1558019430655.JavaMail.zimbra@helmholtz‑muenchen.de>: >>> Hi, >>> >>> my HA‑Cluster with two nodes fenced one on 14th of may. >>> ha‑idg‑1 has been the DC, ha‑idg‑2 was fenced. >>> It happened around 11:30 am. >>> The log from the fenced one isn't really informative: >>> >>> ================================== >>> 2019‑05‑14T11:22:09.948980+02:00 ha‑idg‑2 liblogging‑stdlog: ‑‑ MARK ‑‑ >>> 2019‑05‑14T11:28:21.548898+02:00 ha‑idg‑2 sshd[14269]: Accepted >>> keyboard‑interactive/pam for root from 10.35.34.70 port 59449 ssh2 >>> 2019‑05‑14T11:28:21.550602+02:00 ha‑idg‑2 sshd[14269]: >>> pam_unix(sshd:session): session opened for user root by (uid=0) >>> 2019‑05‑14T11:28:21.554640+02:00 ha‑idg‑2 systemd‑logind[2798]: New session >> >>> 15385 of user root. >>> 2019‑05‑14T11:28:21.555067+02:00 ha‑idg‑2 systemd[1]: Started Session 15385 >> >>> of user root. >>> >>> 2019‑05‑14T11:44:07.664785+02:00 ha‑idg‑2 systemd[1]: systemd 228 running in >> >>> system mode. (+PAM ‑AUDIT +SELINUX ‑IMA +APPARMOR ‑SMACK +SYSVINIT +UTMP >>> +LIBCRYPTSETUP +GC Neustart !!! >>> RYPT ‑GNUTLS +ACL +XZ ‑LZ4 +SECCOMP +BLKID ‑ELFUTILS +KMOD ‑IDN) >>> 2019‑05‑14T11:44:07.664902+02:00 ha‑idg‑2 kernel: [ 0.000000] Linux >>> version 4.12.14‑95.13‑default (geeko@buildhost) (gcc version 4.8.5 (SUSE >>> Linux) ) #1 SMP Fri Mar >>> 22 06:04:58 UTC 2019 (c01bf34) >>> 2019‑05‑14T11:44:07.665492+02:00 ha‑idg‑2 systemd[1]: Detected architecture >> >>> x86‑64. >>> 2019‑05‑14T11:44:07.665510+02:00 ha‑idg‑2 kernel: [ 0.000000] Command >>> line: BOOT_IMAGE=/boot/vmlinuz‑4.12.14‑95.13‑default >>> root=/dev/mapper/vg_local‑lv_root resume=/ >>> dev/disk/by‑uuid/2849c504‑2e45‑4ec8‑bbf8‑724cf358ee25 splash=verbose >>> showopts >>> 2019‑05‑14T11:44:07.665510+02:00 ha‑idg‑2 systemd[1]: Set hostname to >>><ha‑idg‑2>. >>> ================================= > >>> >>> One network interface is gone for a short period. But it's in a bonding >>> device (round‑robin), >>> so the connection shouldn't be lost. Both nodes are connected directly, >>> there is no switch in between. >> >> I think you misunderstood: a round‑robin bonding device is not fault‑safe >> IMHO, but it depends a lot on your cabling details. Also you did not show > the >> logs on the other nodes. > > /usr/src/linux/Documentation/networking/bonding.txt says: > " balance‑rr or 0: Round‑robin policy: Transmit packets in sequential > order from the first available slave through the > last. This mode provides load balancing >> and fault > tolerance. << We had that, and when one of two cables had failed at side A, side B would still use both, so A would receive only every 2nd packet or so.... > Nevertheless i think i will switch to active/backup. > > I showed up /var/log/messages from the fenced note above. > Or do you mean /var/log/pacemaker.log from the fenced one ? > Isn't that the same as the one from the DC ? > > >>> I manually (ifconfig eth3 down) stopped the interface afterwards several >>> times ... nothing happened. >>> The same with the second Interface (eth2). > > That means i also stopped several time the second interface, also with no > fencing of the node. > > Bernd > > > Helmholtz Zentrum Muenchen > Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) > Ingolstaedter Landstr. 1 > 85764 Neuherberg > www.helmholtz‑muenchen.de > Stellv. Aufsichtsratsvorsitzender: MinDirig. Dr. Manfred Wolter > Geschaeftsfuehrung: Prof. Dr. med. Dr. h.c. Matthias Tschoep, Heinrich > Bassler, Kerstin Guenther > Registergericht: Amtsgericht Muenchen HRB 6466 > USt‑IdNr: DE 129521671 > > _______________________________________________ > Manage your subscription: > https://lists.clusterlabs.org/mailman/listinfo/users > > ClusterLabs home: https://www.clusterlabs.org/ _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
