[OpenAFS] Crash testing OpenAFS
Fri, 12 Aug 2005 20:42:06 -0700
I can make 1.3.87 crash at will.
Tried to cp two 1.2.11 volumes to the new file server and it hung after a
No interesting info in cmdebug or fstrace.
I'll send info tomorrow.
Need some prompting on tcpdump.
From: chas williams - CONTRACTOR [mailto:firstname.lastname@example.org]
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? which kernel? client is running linux?
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.
>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?
>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