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[Linux-cluster] Re: kernel noise, "Neighbour table overflow." ?




Now, the same nodes that give the Neighbour table overflow messages are unable to ping?! Chcek this out --

[root gfs02 ~]# ping 192.168.60.188
connect: No buffer space available
[root gfs02 ~]# printk: 4 messages suppressed.
Neighbour table overflow.
printk: 6 messages suppressed.
Neighbour table overflow.
printk: 5 messages suppressed.
Neighbour table overflow.
printk: 1 messages suppressed.

[root gfs02 ~]# uptime
 19:32:32 up 4 days,  2:00,  4 users,  load average: 0.03, 0.07, 0.08
[root gfs02 ~]#

[root gfs02 ~]# clustat
Member Status: Quorate

  Member Name                              Status
  ------ ----                              ------
  gfs03                                    Online, rgmanager
  gfs02                                    Online, Local, rgmanager
  gfs01                                    Online, rgmanager

  Service Name         Owner (Last)                   State
  ------- ----         ----- ------                   -----
  nfshome              gfs03                          started
  ip-test              gfs03                          started
  jukebox              gfs02                          started


[root gfs02 ~]# cman_tool status
Protocol version: 5.0.1
Config version: 93
Cluster name: gfscluster
Cluster ID: 41396
Cluster Member: Yes
Membership state: Cluster-Member
Nodes: 3
Expected_votes: 3
Total_votes: 3
Quorum: 2
Active subsystems: 8
Node name: gfs02
Node addresses: 10.0.19.11




On 4/17/06, aberoham gmail com < aberoham gmail com> wrote:

I'm running a test three-node CS/GFS cluster. At random intervals I get the following kernel messages streaming out to /dev/console on all three nodes.

---
Neighbour table overflow.
printk: 166 messages suppressed.
Neighbour table overflow.
printk: 1 messages suppressed.
Neighbour table overflow.
printk: 1 messages suppressed.
Neighbour table overflow.
printk: 6 messages suppressed.
Neighbour table overflow.
printk: 5 messages suppressed.
Neighbour table overflow.
printk: 15 messages suppressed.
Neighbour table overflow.
printk: 7 messages suppressed.
Neighbour table overflow.
printk: 11 messages suppressed.
---

Are these messages related to CS/GFS? What triggers 'em? And should I worry about it?

I'm running Linux 2.6.9-34.ELsmp, GFS-kernel-smp-2.6.9-45, GFS-6.1.5-0 and dlm-kernel-smp-2.6.9-41.7.

[root gfs02 ~]# service cman status
Protocol version: 5.0.1
Config version: 73
Cluster name: gfscluster
Cluster ID: 41396
Cluster Member: Yes
Membership state: Cluster-Member
Nodes: 3
Expected_votes: 3
Total_votes: 3
Quorum: 2
Active subsystems: 8
Node name: gfs02
Node addresses: 10.0.19.11

[root gfs02 ~]# cat /proc/cluster/services
Service          Name                              GID LID State     Code
Fence Domain:    "default"                           1   2 run       -
[1 2 3]

DLM Lock Space:  "clvmd"                             2   3 run       -
[1 2 3]

DLM Lock Space:  "Magma"                             4   5 run       -
[1 2 3]

DLM Lock Space:  "gfstest"                           5   6 run       -
[1 2]

GFS Mount Group: "gfstest"                           6   7 run       -
[1 2]

User:            "usrm::manager"                     3   4 run       -
[1 2 3]


Thanks.



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