problemas drbd

Drbd-problema   no aconsegueixo el primary/secondary

drbroot@drbd0heartbeat:~# drbd-overview

0:r0/0  StandAlone Secondary/Unknown UpToDate/DUnknown

root@drbd1heartbeat:~# drbd-overview

0:r0/0  WFConnection Primary/Unknown UpToDate/DUnknown /var/lib/mysql ext4 32G 6.7G 24G 23%

Canvi ordre d’arrancada, reinicio només un d'ells

root@drbd0heartbeat:~# drbd-overview

0:r0/0  StandAlone Primary/Unknown UpToDate/DUnknown /var/lib/mysql ext4 32G 6.6G 24G 23%

ot@drbd1heartbeat:~# drbd-overview

0:r0/0  WFConnection Secondary/Unknown UpToDate/DUnknown

Split brain

root@drbd0heartbeat:~# grep split /var/log/syslog

Jun 14 16:51:58 drbd0heartbeat kernel: [    6.652069] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0

Jun 14 16:51:58 drbd0heartbeat kernel: [    6.653058] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0 exit code 0 (0x0)

Jun 14 16:51:58 drbd0heartbeat kernel: [    6.653204] block drbd0: helper command: /sbin/drbdadm split-brain minor-0

Jun 14 16:51:58 drbd0heartbeat kernel: [    6.654109] block drbd0: helper command: /sbin/drbdadm split-brain minor-0 exit code 0 (0x0)

Jun 14 16:54:25 drbd0heartbeat kernel: [    6.708203] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0

Jun 14 16:54:25 drbd0heartbeat kernel: [    6.709194] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0 exit code 0 (0x0)

Jun 14 16:54:25 drbd0heartbeat kernel: [    6.709339] block drbd0: helper command: /sbin/drbdadm split-brain minor-0

Jun 14 16:54:25 drbd0heartbeat kernel: [    6.710279] block drbd0: helper command: /sbin/drbdadm split-brain minor-0 exit code 0 (0x0)

Jun 14 16:59:15 drbd0heartbeat kernel: [  295.508074] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0

Jun 14 16:59:15 drbd0heartbeat kernel: [  295.509099] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0 exit code 0 (0x0)

Jun 14 16:59:15 drbd0heartbeat kernel: [  295.509244] block drbd0: helper command: /sbin/drbdadm split-brain minor-0

Jun 14 16:59:15 drbd0heartbeat kernel: [  295.510053] block drbd0: helper command: /sbin/drbdadm split-brain minor-0 exit code 0 (0x0)

he probat com diu un enllaç

primary- service mysql stop

secondary drbdadm connect all

secondary cat /proc/drbd

primary  drbdadm connect all

primary cat /proc/drbd

primary service mysql start

no ha estat suficient pq entre a funciona , 

AL FINAL HA ESTAT CONTUNDENT - solució

Try following:

On primary node

root@drbd0heartbeat:~# drbdadm connect all

On secondary node

ot@drbd1heartbeat:~# drbdadm -- --discard-my-data connect all

root@drbd1heartbeat:~# cat /proc/drbd

version: 8.4.3 (api:1/proto:86-101)

srcversion: 1A9F77B1CA5FF92235C2213

0: cs:SyncTarget ro:Secondary/Primary ds:Inconsistent/UpToDate C r-----

    ns:0 nr:58384 dw:58384 dr:0 al:0 bm:7 lo:1 pe:4 ua:0 ap:0 ep:1 wo:f oos:2611068

       [>....................] sync'ed:  2.4% (2611068/2669452)K

       finish: 0:00:44 speed: 58,384 (58,384) want: 43,000 K/sec