Hi all!
When faced with the problem running an afs client with memory cache, I
found that (at least for linux) the afs.rc has no support to make this
really easy. You can always patch the options in the startup script and
use that, of course, but this strikes me as horribly inefficient if
everyone has to do that.
So it occured to me it would be nice if I could simply use
CACHESIZE=50000
OPTIONS=MEMORY
in /etc/sysconfig/afs to get memory cache. I then went ahead and patched
the /etc/init.d/afs startup-script (a copy of
openafs-1.2.13/src/afsd/afs.rc.linux)
in this way:
[EMAIL PROTECTED] configs]# diff -c
/service/openafs/source-1.2.13/openafs-1.2.13/src/afsd/afs.rc.linux
/etc/init.d/afs
*** /service/openafs/source-1.2.13/openafs-1.2.13/src/afsd/afs.rc.linux
2002-08-01 00:41:54.000000000 +0200
--- /etc/init.d/afs 2005-03-30 11:25:17.000000000 +0200
***************
*** 195,200 ****
--- 195,203 ----
CACHESIZE=`echo $PARTSIZE | awk '{printf
"%d",int(($1*.8)/1000)*1000}'`
fi
fi
+ if [ "$OPTIONS" = "MEMORY" ] ; then
+ CACHE="MEMORY"
+ fi
if [ "x$CACHESIZE" != "x" ]; then
echo $AFS:$CACHE:$CACHESIZE >$CACHEINFO
chmod 0644 $CACHEINFO
***************
*** 204,209 ****
--- 207,215 ----
}
choose_afsdoptions() {
+ if [ "$OPTIONS" = "MEMORY" ] ; then
+ OPTIONS="-memcache -blocks $CACHESIZE"
+ fi
if [ -z "$OPTIONS" -o "$OPTIONS" = "AUTOMATIC" ]; then
if [ $CACHESIZE -lt 131072 ]; then
OPTIONS=$SMALL
Before putting more work into this (e.g. doing this for all the other
startup scripts, too), would patches like this be acceptable for 1.2.x
(and 1.3x of course). I'm looking for comments!
Keep up the good work!
Dipl. Chem. Dr. Stephan Wonczak
Zentrum fuer Angewandte Informatik (ZAIK)
Regionales Rechenzentrum der Universitaet zu Koeln (RRZK)
Universitaet zu Koeln, Robert-Koch-Strasse 10, 50931 Koeln
Tel: ++49/(0)221/478-5577, Fax: ++49/(0)221/478-5590
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