> -----Original Message----- > From: Users <users-boun...@clusterlabs.org> On Behalf Of Valentin Vidic > via Users > Sent: Sunday, November 6, 2022 5:20 PM > To: users@clusterlabs.org > Cc: Valentin Vidić <vvi...@valentin-vidic.from.hr> > Subject: Re: [ClusterLabs] [External] : Re: Fence Agent tests > > On Sun, Nov 06, 2022 at 09:08:19PM +0000, Robert Hayden wrote: > > When SBD_PACEMAKER was set to "yes", the lack of network connectivity > to the node > > would be seen and acted upon by the remote nodes (evicts and takes > > over ownership of the resources). But the impacted node would just > > sit logging IO errors. Pacemaker would keep updating the /dev/watchdog > > device so SBD would not self evict. Once I re-enabled the network, then > the > > Interesting, not sure if this is the expected behaviour based on: > > https://urldefense.com/v3/__https://lists.clusterlabs.org/pipermail/users/2 > 017- > August/022699.html__;!!ACWV5N9M2RV99hQ!IvnnhGI1HtTBGTKr4VFabWA > LeMfBWNhcS0FHsPFHwwQ3Riu5R3pOYLaQPNia- > GaB38wRJ7Eq4Q3GyT5C3s8y7w$ > > Does SBD log "Majority of devices lost - surviving on pacemaker" or > some other messages related to Pacemaker?
Yes. > > Also what is the status of Pacemaker when the network is down? Does it > report no quorum or something else? > Pacemaker on the failing node shows quorum even though it has lost communication to the Quorum Device and to the other node in the cluster. The non-failing node of the cluster can see the Quorum Device system and thus correctly determines to fence the failing node and take over its resources. Only after I run firewall-cmd --panic-off, will the failing node start to log messages about loss of TOTEM and getting a new consensus with the now visible members. I think all of that explains the lack of self-fencing when the sbd setting of SBD_PACEMAKER=yes is used. > -- > Valentin > _______________________________________________ > Manage your subscription: > https://urldefense.com/v3/__https://lists.clusterlabs.org/mailman/listinfo/u > sers__;!!ACWV5N9M2RV99hQ!IvnnhGI1HtTBGTKr4VFabWALeMfBWNhcS0F > HsPFHwwQ3Riu5R3pOYLaQPNia-GaB38wRJ7Eq4Q3GyT4d-yBlAA$ > > ClusterLabs home: > https://urldefense.com/v3/__https://www.clusterlabs.org/__;!!ACWV5N9 > M2RV99hQ!IvnnhGI1HtTBGTKr4VFabWALeMfBWNhcS0FHsPFHwwQ3Riu5R3 > pOYLaQPNia-GaB38wRJ7Eq4Q3GyT6dCiE15w$ _______________________________________________ Manage your subscription: https://lists.clusterlabs.org/mailman/listinfo/users ClusterLabs home: https://www.clusterlabs.org/
