On 07/02/2012 11:49 PM, Nikola Ciprich wrote: > hello, > > I'm trying to solve quite mysterious problem here.. > I've got new cluster with bunch of SAS disks for testing purposes. > I've configured DRBDs (in primary/primary configuration) > > when I start drbd using drbdadm, it get's up nicely (both nodes > are Primary, connected). > however when I start it using corosync, I always get split-brain, although > there are no data written, no network disconnection, anything..
your full drbd and Pacemaker configuration please ... some snippets from something are very seldom helpful ... Regards, Andreas -- Need help with Pacemaker? http://www.hastexo.com/now > > here's drbd resource config: > primitive drbd-sas0 ocf:linbit:drbd \ > params drbd_resource="drbd-sas0" \ > operations $id="drbd-sas0-operations" \ > op start interval="0" timeout="240s" \ > op stop interval="0" timeout="200s" \ > op promote interval="0" timeout="200s" \ > op demote interval="0" timeout="200s" \ > op monitor interval="179s" role="Master" timeout="150s" \ > op monitor interval="180s" role="Slave" timeout="150s" > > ms ms-drbd-sas0 drbd-sas0 \ > meta clone-max="2" clone-node-max="1" master-max="2" master-node-max="1" > notify="true" globally-unique="false" interleave="true" target-role="Started" > > > here's the dmesg output when pacemaker tries to promote drbd, causing the > splitbrain: > [ 157.646292] block drbd2: Starting worker thread (from drbdsetup [6892]) > [ 157.646539] block drbd2: disk( Diskless -> Attaching ) > [ 157.650364] block drbd2: Found 1 transactions (1 active extents) in > activity log. > [ 157.650560] block drbd2: Method to ensure write ordering: drain > [ 157.650688] block drbd2: drbd_bm_resize called with capacity == 584667688 > [ 157.653442] block drbd2: resync bitmap: bits=73083461 words=1141930 > pages=2231 > [ 157.653760] block drbd2: size = 279 GB (292333844 KB) > [ 157.671626] block drbd2: bitmap READ of 2231 pages took 18 jiffies > [ 157.673722] block drbd2: recounting of set bits took additional 2 jiffies > [ 157.673846] block drbd2: 0 KB (0 bits) marked out-of-sync by on disk > bit-map. > [ 157.673972] block drbd2: disk( Attaching -> UpToDate ) > [ 157.674100] block drbd2: attached to UUIDs > 0150944D23F16BAE:0000000000000000:8C175205284E3262:8C165205284E3263 > [ 157.685539] block drbd2: conn( StandAlone -> Unconnected ) > [ 157.685704] block drbd2: Starting receiver thread (from drbd2_worker > [6893]) > [ 157.685928] block drbd2: receiver (re)started > [ 157.686071] block drbd2: conn( Unconnected -> WFConnection ) > [ 158.960577] block drbd2: role( Secondary -> Primary ) > [ 158.960815] block drbd2: new current UUID > 015E111F18D08945:0150944D23F16BAE:8C175205284E3262:8C165205284E3263 > [ 162.686990] block drbd2: Handshake successful: Agreed network protocol > version 96 > [ 162.687183] block drbd2: conn( WFConnection -> WFReportParams ) > [ 162.687404] block drbd2: Starting asender thread (from drbd2_receiver > [6927]) > [ 162.687741] block drbd2: data-integrity-alg: <not-used> > [ 162.687930] block drbd2: drbd_sync_handshake: > [ 162.688057] block drbd2: self > 015E111F18D08945:0150944D23F16BAE:8C175205284E3262:8C165205284E3263 bits:0 > flags:0 > [ 162.688244] block drbd2: peer > 7EC38CBFC3D28FFF:0150944D23F16BAF:8C175205284E3263:8C165205284E3263 bits:0 > flags:0 > [ 162.688428] block drbd2: uuid_compare()=100 by rule 90 > [ 162.688544] block drbd2: helper command: /sbin/drbdadm initial-split-brain > minor-2 > [ 162.691332] block drbd2: helper command: /sbin/drbdadm initial-split-brain > minor-2 exit code 0 (0x0) > > to me it seems to be that it's promoting it too early, and I also wonder why > there is the > "new current UUID" stuff? > > I'm using centos6, kernel 3.0.36, drbd-8.3.13, pacemaker-1.1.6 > > could anybody please try to advice me? I'm sure I'm doing something stupid, > but can't figure out what... > > thanks a lot in advance > > with best regards > > nik > > > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org >
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_______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
