[OpenAFS] Problem starting dafileserver on 1.8.2

[Rich Sudlow]

On 10/25/18 7:36 AM, Neil Brown wrote:
> Hi,
> 
> We are currently running 1.6.23 file servers. We want to upgrade to 1.8.2, but 
> if I just bash on and replace the software, our dafsservers will no longer 
> start, giving errors like:
> 
> /usr/afs/bin/dafileserver: Too many values after switch -vattachpar
> 
> We do pass quite a few arguments to dafs. What we are currently using
> with 1.6.23 is:
> 
> /usr/afs/bin/dafileserver -L -p 128 -rxpck 400 -busyat 600 -s 1200 -l 1200 -cb 
> 500000 -b 240 -vc 1200 -allow-dotted-principals -vattachpar 128 -vlruthresh 240
> 
> But as I say, the same with 1.8.2 gives the above error. If I keep the
> same arguments, but in a different order, I get a different error:
> 
> bash# /usr/afs/bin/dafileserver  -vlruthresh 240 -L -p 128 -rxpck 400 -busyat 
> 600 -s 1200 -l 1200 -cb 500000 -b 240 -vc 1200 -allow-dotted-principals 
> -vattachpar 128
> Illegal -implicit rights character '2'.
> 
> If I reduce the number of arguments dafileserver will start, so on one
> of our experimental servers this does work:
> 
> /usr/afs/bin/dafileserver -L  -busyat 600 -s 1200 -l 1200 -b 240 -vc 1200 
> -allow-dotted-principals
> 
> I'm guessing it is maybe some buffer overflow in the argument
> processing. I'm about to have a look at the source code, but I'll be a
> bit out of my comfort zone.
> 
> Is anyone else running dafs on 1.8.2, what sort of arguments are you
> using?

/usr/afs/bin/dafileserver -L -p 256 -b 512 -l 163840 -s 524288 -vc 1024 -cb 
2621440 -rxpck 800 -udpsize 16777216 -sendsize 2097152 -vattachpar 128 -sync 
onclose -implicit all

> 
> Some extra info. Yes we are using "bos create" to generate a suitable
> BosConfig file, we are not starting dafileserver straight from the
> command line.
> 
> All those extra arguments have grown over time as we try to improve
> the performance of our fileservers. For example a typical file server
> hardware consists of a Dell Poweredge R730xd with 64GB memory, 12x4TB
> disks RAID10'd together. Giving us 10x2TB vicep partitions with an
> average of 130 user home volumes on each partition.
> 
> This is running on Scientific Linux 7.5.
> 
> Thanks,
> 
> Neil


-- 
Rich Sudlow
University of Notre Dame
Center for Research Computing - Union Station
506 W. South St
South Bend, In 46601

(574) 631-7258 (office)
(574) 807-1046 (cell)