Ulrich.Windl at rz
Dec 16, 2011, 4:31 AM
Views: 270
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OCFS on top of dual-primary DRBD in SLES11 SP1
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Hi!
I have some troubel with OCFS on top of DRBD that seems to be timing-related:
OCFS is working on the DRBD when DRBD itself wants to vhange something it seems:
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Dec 16 11:39:58 h06 kernel: [ 122.426174] block drbd0: role( Secondary -> Primary )
Dec 16 11:39:58 h06 multipathd: drbd0: update path write_protect to '0' (uevent)
Dec 16 11:40:29 h06 ocfs2_controld: start_mount: uuid "FD32E504527742CEA7DA6DB272D5D7B2", device "/dev/drbd_r0", service "ocfs2"
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Dec 16 11:40:29 h06 kernel: [ 152.837615] block drbd0: peer( Secondary -> Primary )
Dec 16 11:40:29 h06 ocfs2_hb_ctl[19177]: ocfs2_hb_ctl /sbin/ocfs2_hb_ctl -P -d /dev/drbd_r0
Dec 16 11:43:50 h06 kernel: [ 354.559240] block drbd0: State change failed: Device is held open by someone
Dec 16 11:43:50 h06 kernel: [ 354.559244] block drbd0: state = { cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate r----- }
Dec 16 11:43:50 h06 kernel: [ 354.559246] block drbd0: wanted = { cs:Connected ro:Secondary/Primary ds:UpToDate/UpToDate r----- }
Dec 16 11:43:50 h06 drbd[28754]: [28786]: ERROR: r0: Called drbdadm -c /etc/drbd.conf secondary r0
Dec 16 11:43:50 h06 drbd[28754]: [28789]: ERROR: r0: Exit code 11
A little bit later DRBD did it's own fencing (the machine rebooted)
Is there a way to let the cluster do the fencing instead of writing to sysctl? Those handlers are used:
handlers {
pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; /usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot -f";
local-io-error "/usr/lib/drbd/notify-io-error.sh; /usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger ; halt -f";
Regards,
Ulrich
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OCFS on top of dual-primary DRBD in SLES11 SP1
