[Samba] ocfs2 problem on ctdb cluster

L.P.H. van Belle belle at bazuin.nl
Fri Aug 22 06:06:03 MDT 2014


you can inserted this line inside /etc/network/interfaces
post-up /etc/init.d/o2cb online ocfs2 
see:  https://bugs.launchpad.net/ubuntu/+source/ocfs2-tools/+bug/481795 
looks like an old bug..


>-----Oorspronkelijk bericht-----
>Van: steve at steve-ss.com [mailto:samba-bounces at lists.samba.org] 
>Namens steve
>Verzonden: vrijdag 22 augustus 2014 13:58
>Aan: samba
>Onderwerp: [Samba] ocfs2 problem on ctdb cluster
>
>
>Ubuntu 14.04, drbd
>Hi
>On a drbd Primary node, when attempting to mount our cluster partition:
>sudo mount -t ocfs2 /dev/drbd1 /cluster
>we get:
>mount.ocfs2: Unable to access cluster service while trying to join the
>group
>
>We then call:
>sudo dpkg-reconfigure ocfs2-tools
>Setting cluster stack "o2cb": OK
>Starting O2CB cluster ocfs2: OK
>
>And all is well:
>Aug 22 13:48:23 uc1 kernel: [ 1181.117051] o2dlm: Joining domain
>B044256AC5F14DB089B4C87F28EE9583 ( 1 ) 1 nodes
>Aug 22 13:48:23 uc1 kernel: [ 1181.258192] ocfs2: Mounting device
>(147,1) on (node 1, slot 0) with ordered data mode.
>
> mount | grep cluster
>/dev/drbd1 on /cluster type ocfs2 (rw,_netdev,heartbeat=local)
>
>
>Why doesn't o2cb 'stick' after a reboot?
>Thanks,
>Steve
>
> /etc/ocfs2/cluster.conf 
>node:
>        ip_port = 7777
>        ip_address = 192.168.0.10 
>        number = 1
>        name = uc1
>        cluster = ocfs2
>node:
>        ip_port = 7777
>        ip_address = 192.168.0.11 
>        number = 2
>        name = uc2
>        cluster = ocfs2
>cluster:
>        node_count = 2
>        name = ocfs2
>
>/etc/drbd.conf
>global {
>  usage-count yes;
>}
>common {
>  net {
>    protocol C;
>  }
>}
>
>resource r0 {
> handlers {
>   split-brain "/usr/lib/drbd/notify-split-brain.sh steve";
>     }
>
>net { 
>  allow-two-primaries; 
>  after-sb-0pri discard-zero-changes;
>  after-sb-1pri discard-secondary;
>  after-sb-2pri disconnect;
>      }
> startup { 
>  become-primary-on both;
>          }
>  on uc1 {
>    device    /dev/drbd1;
>    disk      /dev/sdb1;
>    address   192.168.0.10:7789;
>    meta-disk internal;
>  }
>  on uc2 {
>    device    /dev/drbd1;
>    disk      /dev/sdb1;
>    address   192.168.0.11:7789;
>    meta-disk internal;
>  }
>}
>
>[global]
>workgroup = ALTEA
>realm = ALTEA.SITE
>security = ADS
>kerberos method = secrets only
>netbios name = SMBCLUSTER
>disable netbios = Yes
>clustering = Yes
>ctdbd socket = /var/lib/run/ctdb/ctdbd.socket
>[users]
>path = /cluster/users
>read only = No
>[profiles]
>path = /cluster/profiles
>read only = No
>[shared]
>path = /cluster/shared
>force create mode = 0770
>read only = No
>
>
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