[OpenAFS] vos dump has timeout 700 second if vlserver down

Michal Svamberg svamberg@gmail.com
Mon, 8 Sep 2008 11:05:05 +0200

I removed the last line from my /etc/openafs/server/CellServDB (server sauron):

>zcu.cz                    # University of West Bohemia, Czech Republic                   #oknos.zcu.cz                   #nic.zcu.cz                   #sauron.zcu.cz

Using of 'vos dump' helped, now it works better,
But 'vos release <volume> -localauth' is faulty:

vos rel common.etc.xen -v -localauth
Could not lock the VLDB entry for the volume 876072271.
u: not synchronization site (should work on sync site)
Error in vos release command.
u: not synchronization site (should work on sync site)

What is wrong?

Michal Svamberg

On Thu, Aug 14, 2008 at 11:58 AM, Hartmut Reuter <reuter@rzg.mpg.de> wrote:
> Michal Svamberg wrote:
>> Hi,
>> I have 3 vlservers. When one of these servers is down, the 'vos dump' is
>> waiting for a long time.
>> The timeout is defined in the function DumpVolume() at volser/vos.c:
>> rx_SetRxDeadTime(60 * 10);
>> With this parameter, the timeout is exactly 700 seconds (by wireshark).
>> Changing the parameter to 10*10 leads to a timeout 112 seconds.
>> In the attachment, I send the wireshark dump of communications of 'vos
>> dump' with
>> vlserver ( is down).
>> Why other openafs commands have smaller timeout (app. 12 seconds)?
> Because when the old (non-pthreaded) volserver asked the fileserver for a
> volume it hung in the read to the socket without a chance to serve
> rx-requests.
>> Why 'vos dump' has such a big timeout?
>> Is there any option to change it?
> If you know one of the vlservers is dead take it out of the CellServDB on
> the machine where you do the vos dump.
>> I have big problems when one vlserver is down and I am creating a dump
>> of thousands volumes.
>> I use bacula for creating backups.
>> Thanks for responses.
>> Michal Svamberg
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