[Linux-cluster] RHEL Cluster node fencing and cluster membership

Rajkumar, Anoop anoop_rajkumar at merck.com
Sat Jun 26 15:39:31 UTC 2010


Hi

I have two dl585 with shared storage from MSA 1000 in a two node rhel
5.3 cluster. Priority in cluster.conf are like below.

<failoverdomainnode name="usrylxap237.merck.com" priority="1"/>
                                <failoverdomainnode
name="usrylxap238.merck.com" priority="2"/>

Whenever lower priority node usrylxap238 Is rebooted it kills cman on
usrylxap237 (Higher priority node) and fence it causing reboot of it.
Message I see in /var/log/messages of higher priority node is 

Jun 26 11:02:36 usrylxap237 openais[4750]: [CMAN ] cman killed by node 2
because we rejoined the cluster without a full restart
Jun 26 11:03:57 usrylxap237 openais[27373]: [CMAN ] cman killed by node
1 because we were killed by cman_tool or other application

After reboot when higher priority node usrylxap237 comes up it tranfers
services from lower priority node to itself and everything works fine
for some time. Then I see following message in /var/log/messages of
higher priority node running services.

Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] The token was lost in
the OPERATIONAL state.
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] Receive multicast
socket recv buffer size (2880
00 bytes).
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] Transmit multicast
socket send buffer size (288
000 bytes).
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 2.
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] Saving state aru 17
high seq received 17
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 420
Jun 26 09:24:26 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:36 usrylxap237 openais[5792]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:24:36 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:24:36 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:24:36 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 424
Jun 26 09:24:36 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:46 usrylxap237 openais[5792]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:24:46 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:24:46 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:24:46 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 428
Jun 26 09:24:46 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] entering RECOVERY
state.
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] position [0] member
54.3.254.237:
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] previous ring seq
1052 rep 54.3.254.237
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] position [1] member
54.3.254.238:
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] previous ring seq
1052 rep 54.3.254.237
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] Did not need to
originate any messages in recov
ery.
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] Sending initial ORF
token
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] New Configuration:
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] Members Left:
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] Members Joined:
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] New Configuration:
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] Members Left:
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] Members Joined:
Jun 26 09:24:54 usrylxap237 openais[5792]: [SYNC ] This node is within
the primary component and w
ill provide service.
Jun 26 09:24:54 usrylxap237 openais[5792]: [TOTEM] entering OPERATIONAL
state.
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] got nodejoin message
54.3.254.237
Jun 26 09:24:54 usrylxap237 openais[5792]: [CLM  ] got nodejoin message
54.3.254.238
Jun 26 09:24:54 usrylxap237 openais[5792]: [CPG  ] got joinlist message
from node 1
Jun 26 09:24:54 usrylxap237 openais[5792]: [CPG  ] got joinlist message
from node 2
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] The token was lost in
the OPERATIONAL state.
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] Receive multicast
socket recv buffer size (2880
00 bytes).
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] Transmit multicast
socket send buffer size (288
000 bytes).
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 2.
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] Saving state aru 17
high seq received 17
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 42c
Jun 26 09:25:23 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 430
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 13.
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 434
Jun 26 09:25:33 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:43 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.
Jun 26 09:25:43 usrylxap237 openais[5792]: [TOTEM] Storing new sequence
id for ring 438
Jun 26 09:25:43 usrylxap237 openais[5792]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:43 usrylxap237 openais[5792]: [TOTEM] entering GATHER state
from 13.
Jun 26 09:25:43 usrylxap237 openais[5792]: [TOTEM] Creating commit token
because I am the rep.


On the second node I can see 

Jun 26 09:24:26 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 12.
Jun 26 09:24:26 usrylxap238 openais[5725]: [TOTEM] Saving state aru 17
high seq received 17
Jun 26 09:24:26 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 420
Jun 26 09:24:26 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:36 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 13.
Jun 26 09:24:36 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 424
Jun 26 09:24:36 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:46 usrylxap238 openais[5725]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:24:46 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:24:46 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 428
Jun 26 09:24:46 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] entering RECOVERY
state.
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] position [0] member
54.3.254.237:
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] previous ring seq
1052 rep 54.3.254.237
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] position [1] member
54.3.254.238:
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] previous ring seq
1052 rep 54.3.254.237
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] Did not need to
originate any messages in re
covery.
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] New Configuration:
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] Members Left:
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] Members Joined:
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] New Configuration:
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] Members Left:
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] Members Joined:
Jun 26 09:24:54 usrylxap238 openais[5725]: [SYNC ] This node is within
the primary component an
d will provide service.
Jun 26 09:24:54 usrylxap238 openais[5725]: [TOTEM] entering OPERATIONAL
state.
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] got nodejoin message
54.3.254.237
Jun 26 09:24:54 usrylxap238 openais[5725]: [CLM  ] got nodejoin message
54.3.254.238
Jun 26 09:24:54 usrylxap238 openais[5725]: [CPG  ] got joinlist message
from node 1
Jun 26 09:24:54 usrylxap238 openais[5725]: [CPG  ] got joinlist message
from node 2
Jun 26 09:25:23 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 12.
Jun 26 09:25:23 usrylxap238 openais[5725]: [TOTEM] Saving state aru 17
high seq received 17
Jun 26 09:25:23 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 42c
Jun 26 09:25:23 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 430
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 13.
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 434
Jun 26 09:25:33 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 438
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 13.
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 43c
Jun 26 09:25:43 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:53 usrylxap238 openais[5725]: [TOTEM] The token was lost in
the COMMIT state.
Jun 26 09:25:53 usrylxap238 openais[5725]: [TOTEM] entering GATHER state
from 4.
Jun 26 09:25:53 usrylxap238 openais[5725]: [TOTEM] Storing new sequence
id for ring 440
Jun 26 09:25:53 usrylxap238 openais[5725]: [TOTEM] entering COMMIT
state.
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] entering RECOVERY
state.
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] position [0] member
54.3.254.237:
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] previous ring seq
1064 rep 54.3.254.237
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] position [1] member
54.3.254.238:
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] previous ring seq
1064 rep 54.3.254.237
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] aru 17 high delivered
17 received flag 1
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] Did not need to
originate any messages in re
covery.
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] New Configuration:
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] Members Left:
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] Members Joined:
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] CLM CONFIGURATION
CHANGE
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] New Configuration:
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.237)
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ]      r(0)
ip(54.3.254.238)
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] Members Left:
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] Members Joined:
Jun 26 09:25:54 usrylxap238 openais[5725]: [SYNC ] This node is within
the primary component an
d will provide service.
Jun 26 09:25:54 usrylxap238 openais[5725]: [TOTEM] entering OPERATIONAL
state.
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] got nodejoin message
54.3.254.237
Jun 26 09:25:54 usrylxap238 openais[5725]: [CLM  ] got nodejoin message
54.3.254.238
Jun 26 09:25:54 usrylxap238 openais[5725]: [CPG  ] got joinlist message
from node 1
Jun 26 09:25:54 usrylxap238 openais[5725]: [CPG  ] got joinlist message
from node 2

Now my cluster is messed up. Even though clustat and cman_tool show
everything is fine. As I can not move services between the node (they
are running fine on present node). It even does not give any error
message when I try to move them using clusvcadm.

[root at usrylxap238 ~]# clustat
Cluster Status for cluster1 @ Sat Jun 26 11:25:12 2010
Member Status: Quorate

 Member Name                             ID   Status
 ------ ----                             ---- ------
 usrylxap237.merck.com                       1 Online, rgmanager
 usrylxap238.merck.com                       2 Online, Local, rgmanager

 Service Name                   Owner (Last)                   State
 ------- ----                   ----- ------                   -----
 service:http-service           usrylxap237.merck.com          started
 service:mysql                  usrylxap237.merck.com          started
[root at usrylxap238 ~]# cman_tool status
Version: 6.1.0
Config Version: 32
Cluster Name: cluster1
Cluster Id: 26777
Cluster Member: Yes
Cluster Generation: 1276
Membership state: Cluster-Member
Nodes: 2
Expected votes: 1
Total votes: 2
Quorum: 1
Active subsystems: 9
Flags: 2node Dirty
Ports Bound: 0 11 177
Node name: usrylxap238.merck.com
Node ID: 2
Multicast addresses: 239.192.104.2
Node addresses: 54.3.254.238

I have clvmd running with locking_type = 3 and gfs2 file system mounted
(using dlm) which now is hanging on higher priority node but is fine on
lower priority node (Which seems is not part of cluster now).

[root at usrylxap237 ~]# service gfs2 status
Active GFS2 mountpoints:
/oracluster1

[root at usrylxap238 ~]# service gfs2 status
Configured GFS2 mountpoints:
/oracluster1
Active GFS2 mountpoints:
/oracluster1

Not sure why cluster is loosing membership and getting staled and GFS
file system is not accessible.

Thanks
Anoop
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