[OpenAFS] Crash testing OpenAFS
Fri, 12 Aug 2005 13:59:10 -0700
From: email@example.com [mailto:firstname.lastname@example.org]
On Behalf Of chas williams - CONTRACTOR
Sent: Friday, August 12, 2005 1:28 PM
To: ted creedon
Subject: Re: [OpenAFS] Crash testing OpenAFS
>cp -rvp /afs/.bigcell/foo/* /afs/.home.ted-doris.fam/bar #doesn't work
>Where bigcell is 1.2.11 and home is 1.3.87
both servers running linux?
>> old server bigcell linux 2.4/AFS 1.2.11
>> new Server/client home.ted-doris.fam linux 2.6/AFS 1.3.87
>> note: the cp is being run on the 2.6/1.3.87 machine i.e. copying data
from the old server to the new one.
which kernel? which version of afs on the client
>1. The transfer stops for no apparent reason after transferring for
>quite a while. Looking at TOP - rxlistener, etc just disappear. The OS
>and afs server/clients remained up.
after it stops, on the afs client, run:
cmdebug localhost 7001 -long
also, look in /usr/afs/logs on both servers. in particular, FileLog and
you might also try running 'fstrace setset' (as root) after the cp stops
running properly, wait a minute or two, and then issue 'fstrace dump' and
see if anything is in there.
failing any of that, we will likely need to a tcpdump capture from the
client. check the archives for proper options.
>>groan. Which ports, 7000,7001 or more?
>3. It appears that the crashing is related to actual stress under load i.e.
>when the 24000 files contain actual data.
about how much data?
>>I'll check - deleted the volume and will run again but it was a lot.
>4. cp -rvp /afs/.bigcell/foo/* /afs/.bigcell/bar #does seem to work.
cp -rvp /afs/.home.ted-doris.fam/foo/* /afs/.home.ted-doris.fam/bar
>> I'll load the new 2.6/1.3.87 server from a backup firewire disk and test
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