Hi folks,
After messing around with a couple of multihomed hosts for a while, I
get the impression that AFS, or at least the Debian squeeze install
procedure for it, doesn't like to work this way. It's possible to
prevent the file server from listening to certain interfaces
(addresses) by using NetInfo and NetRestrict, but I wish I knew how to
do something similar for the ptserver and especially for the vlserver.
When setting up a new database server (which is supposed to replicate
via the Internet), it seems that, by default, AFS scans all of the
interfaces on a new host to end up using the IP addresses associated
with them. In my case, this includes several private addresses that I
don't want any of the database servers to use. However, even if
immediately afterwards I remove these addresses from a new server's
CellServDB and restart it, it's too late: they're already in the VLDB
and AFS is already trying to send a new RO copy of root.cell to the
new server... using that server's private range IP address. Now I've
got:
# vos volinfo root.cell -noresolv
root.cell 536870915 RW 6 K On-line
oost.dapadam.nl /vicepa
RWrite 536870915 ROnly 536870916 Backup 0
MaxQuota 5000 K
Creation Sun Jan 9 15:32:11 2011
Copy Sun Jan 9 15:32:11 2011
Backup Never
Last Access Fri Jan 14 18:17:02 2011
Last Update Fri Jan 14 18:16:57 2011
0 accesses in the past day (i.e., vnode references)
RWrite: 536870915 ROnly: 536870916 RClone: 536870916
number of sites -> 3
server 82.95.170.57 partition /vicepa RW Site -- New release
server 82.95.170.57 partition /vicepa RO Site -- New release
server 192.168.26.10 partition /vicepa RO Site -- Old release
It seems to be stuck like this. Can it be fixed?
Before discovering this, I had already used "vos delentry" to remove
the private IP addresses from the VLDB, so "vos listaddrs" currently
shows only the correct (public) IP addresses.
The last time around, I had succeeded in adding each new server only
after first bringing down the internal interfaces. Once installed, the
internal interfaces were brought up again and AFS ignored them. This
afternoon, bringing down those internal interfaces was not an option,
but I was hoping to get it to work anyway. I had no such luck.
This is a fresh setup involving two of the servers planned, so I can
easily blow it all away and start over, but I'm wondering if it's
possible to install OpenAFS on multihomed hosts without having to down
any internal interfaces.
Thanks,
Jaap
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