CTDB 2.0: how to get rid of these messages?
Ulrich Sibiller
u.sibiller at science-computing.de
Fri Jun 14 09:14:50 MDT 2013
Hi,
we have a 6 node GPFS cluster running on RHEL5 and 6 (4 RHEL5, 2xRHEL6) using ctdb-2.0-1.x86_64 and
sernet's samba3-3.6.13-45.el6.x86_64 packages. This running fine most of the time. However, I have
lots of lines like the following in the syslogs of all nodes. Example from node 5:
Jun 14 15:01:24 gpfs02s05 ctdbd: Could not add client IP xx.yy.zz.236. This is not a public address.
This address is the private address of the node's bond0 interface.
I am suspecting that ctdb complains because the nodes and the private adresses are located in the
same subnet (the online documentation states "This should be a private non-routable subnet which is
only used for internal cluster traffic."). Is that correct? I cannot
change that because there's is no way to establish a private subnet here. Can I do something -
except changing the source - to get rid of the message?
Uli
PS: Some more info on the setup:
The nodes file:
------------------------------------------------------
[root at gpfs02s05 samba]# cat /etc/ctdb/nodes
xx.yy.zz.236
xx.yy.zz.237
xx.yy.zz.231
xx.yy.zz.230
xx.yy.zz.229
xx.yy.zz.226
------------------------------------------------------
the public_addresses file:
------------------------------------------------------
[root at gpfs02s05 samba]# cat /etc/ctdb/public_addresses
xx.yy.zz.216/24 bond0
xx.yy.zz.217/24 bond0
xx.yy.zz.219/24 bond0
xx.yy.zz.220/24 bond0
xx.yy.zz.221/24 bond0
xx.yy.zz.218/24 bond0
------------------------------------------------------
------------------------------------------------------
[root at gpfs02s05]# ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000
link/ether 34:40:b5:ab:ff:f4 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000
link/ether 34:40:b5:ab:ff:f6 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000
link/ether 34:40:b5:a6:56:e4 brd ff:ff:ff:ff:ff:ff
5: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP qlen 1000
link/ether 34:40:b5:a6:56:e6 brd ff:ff:ff:ff:ff:ff
6: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
link/ether 36:40:b5:ae:ee:bf brd ff:ff:ff:ff:ff:ff
inet 169.254.95.120/24 brd 169.254.95.255 scope global usb0
inet6 fe80::3440:b5ff:feae:eebf/64 scope link
valid_lft forever preferred_lft forever
7: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
link/ether 34:40:b5:ab:ff:f4 brd ff:ff:ff:ff:ff:ff
inet xx.yy.zz.236/24 brd xx.yy.zz.255 scope global bond0
inet xx.yy.zz.218/24 brd xx.yy.zz.255 scope global secondary bond0
inet6 fe80::3640:b5ff:feab:fff4/64 scope link
valid_lft forever preferred_lft forever
------------------------------------------------------
ctdb status show this:
------------------------------------------------------
Number of nodes:6
pnn:0 xx.yy.zz.236 OK (THIS NODE)
pnn:1 xx.yy.zz.237 OK
pnn:2 xx.yy.zz.231 OK
pnn:3 xx.yy.zz.230 OK
pnn:4 xx.yy.zz.229 OK
pnn:5 xx.yy.zz.226 OK
Generation:1676676043
Size:6
hash:0 lmaster:0
hash:1 lmaster:1
hash:2 lmaster:2
hash:3 lmaster:3
hash:4 lmaster:4
hash:5 lmaster:5
Recovery mode:NORMAL (0)
Recovery master:5
------------------------------------------------------
------------------------------------------------------
[root at gpfs02s05 samba]# ctdb listnodes
xx.yy.zz.236
xx.yy.zz.237
xx.yy.zz.231
xx.yy.zz.230
xx.yy.zz.229
xx.yy.zz.226
------------------------------------------------------
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