[Ocfs2-users] Problems mounting shared filesystem

Chris Clonch
Mon, 22 Mar 2010 18:44:47 -0000

We are testing clustering and I am having issues getting all of my nodes to
mount.  I have 4 nodes.  I am using iSCSI to share 1 target with 2 luns.
All 4 nodes can are accessing the target; I can run fdisk -l against the
block devices.  Initially I had all 4 nodes mounting the share but brought
the cluster down to add an additional NIC.  Presently nodes 2 and 3 can
mount the shares, 1 and 4 can not.  Previously I had node 1 mounted and
nodes 2, 3 and 4 could not.

Any help is appreciated!

Nodes 2 & 3:

# service o2cb status
Driver for "configfs": Loaded
Filesystem "configfs": Mounted
Driver for "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
Heartbeat dead threshold = 31
  Network idle timeout: 30000
  Network keepalive delay: 2000
  Network reconnect delay: 2000
Checking O2CB heartbeat: Active


Nodes 1 & 4:

# service o2cb status
Driver for "configfs": Loaded
Filesystem "configfs": Mounted
Driver for "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster ocfs2: Online
Heartbeat dead threshold = 31
  Network idle timeout: 30000
  Network keepalive delay: 2000
  Network reconnect delay: 2000
Checking O2CB heartbeat: Not active


All nodes:

# mounted.ocfs2 -d
Device                FS     UUID                                  Label
/dev/sda1             ocfs2  fea0a398-a696-414f-bd9f-d7aa84bd6b77  ocu01
/dev/sdb1             ocfs2  26e82fa7-ec91-4a81-a965-571ed4223ab0
oracluster

# mounted.ocfs2 -f
Device                FS     Nodes
/dev/sda1             ocfs2  ocnode2, ocnode3
/dev/sdb1             ocfs2  ocnode2, ocnode3


dmesg snippet from node 4:

o2net: connected to node ocnode2 (num 2) at 192.168.1.2:7777
(4145,0):o2net_connect_expired:1664 ERROR: no connection established with
node 3 after 30.0 seconds, giving up and returning errors.
(4176,0):dlm_request_join:1036 ERROR: status = -107
(4176,0):dlm_try_to_join_domain:1210 ERROR: status = -107
(4176,0):dlm_join_domain:1488 ERROR: status = -107
(4176,0):dlm_register_domain:1754 ERROR: status = -107
(4176,0):ocfs2_dlm_init:2723 ERROR: status = -107
(4176,0):ocfs2_mount_volume:1437 ERROR: status = -107
ocfs2: Unmounting device (8,17) on (node 4)
o2net: no longer connected to node ocnode2 (num 2) at 192.168.1.2:7777
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