ceph/qa/workunits/snaptest-snap-rm-cmp.sh
Sage Weil 466c002f18 qa: add snaptest-snap-rm-cmp
This (usually) reproduced a bug where:

 - we write a big file
 - snap it
 - remove it.  this makes the mds cow it.
 - cp the snapped version.
   - mds syncs the head
   - client starts writeback
   - (sometimes!) client sends other caps back to the mds
     - mds does null flushsnap, not realizing a real one is still coming
2010-08-18 13:44:34 -07:00

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#!/bin/sh -x
set -e
file=linux-2.6.33.tar.bz2
wget http://ceph.newdream.net/qa/$file
real=`md5sum $file | awk '{print $1}'`
for f in `seq 1 20`
do
echo $f
cp $file a
mkdir .snap/s
rm a
cp .snap/s/a /tmp/a
cur=`md5sum /tmp/a | awk '{print $1}'`
if [ "$cur" != "$real" ]; then
echo "FAIL: bad match, /tmp/a $cur != real $real"
false
fi
rmdir .snap/s
done
rm $file