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#!/bin/bash
. $(dirname $0)/../include.rc
. $(dirname $0)/../volume.rc
. $(dirname $0)/../dht.rc
NFILES=100
touch_files () {
for i in $(seq 1 $NFILES); do
touch $(printf $M0/dir/file%02d $i)
done
}
count_files () {
found=0
for i in $(seq 1 $NFILES); do
if [ -f $(printf $M0/dir/file%02d $i) ]; then
found=$((found+1))
fi
done
echo "found $found files" > /dev/tty
echo $found
}
wait_for_rebalance () {
while true; do
tmp=$(rebalance_completed)
if [ $tmp -eq 1 ]; then
sleep 1
else
break
fi
done
}
get_xattr () {
cmd="getfattr --absolute-names --only-values -n trusted.glusterfs.dht"
$cmd $1 | od -tx1 -An | tr -d ' '
}
cleanup
TEST glusterd
TEST pidof glusterd
TEST $CLI volume info
TEST $CLI volume create $V0 $H0:$B0/${V0}{1,2}
EXPECT "$V0" volinfo_field $V0 'Volume Name'
EXPECT 'Created' volinfo_field $V0 'Status'
TEST $CLI volume set $V0 cluster.lookup-unhashed auto
TEST $CLI volume start $V0
EXPECT 'Started' volinfo_field $V0 'Status'
# Create some files for later tests.
TEST $GFS -s $H0 --volfile-id $V0 $M0
TEST mkdir $M0/dir
TEST touch_files
TEST umount $M0
# Add a brick and do the fix-layout part of rebalance to update directory layouts
# (including their directory commit hashes).
TEST $CLI volume add-brick $V0 $H0:$B0/${V0}3
EXPECT '3' brick_count $V0
TEST $CLI volume rebalance $V0 fix-layout start
TEST wait_for_rebalance
# Now for the sneaky part. *Undo* the part of rebalance that updated the volume
# commit hash, forcing a false match between that and the directory commit hashes.
TEST setfattr -x trusted.glusterfs.dht.commithash $B0/${V0}1
TEST setfattr -x trusted.glusterfs.dht.commithash $B0/${V0}2
TEST setfattr -x trusted.glusterfs.dht.commithash $B0/${V0}3
# Mount and check that we do *not* see all of the files. This indicates that we
# correctly skipped the broadcast lookup that would have found them.
TEST $GFS -s $H0 --volfile-id $V0 $M0
TEST [ $(count_files) -ne 100 ]
TEST umount $M0
# Do the fix-layout again to generate a new volume commit hash.
TEST $CLI volume rebalance $V0 fix-layout start
TEST wait_for_rebalance
# Mount and check that we *do* see all of the files. This indicates that we saw
# the mismatch and did the broadcast lookup this time.
TEST $GFS -s $H0 --volfile-id $V0 $M0
TEST [ $(count_files) -eq 100 ]
TEST umount $M0
# Do a *full* rebalance and verify that the directory commit hash changed.
old_val=$(get_xattr $B0/${V0}1/dir)
TEST $CLI volume rebalance $V0 start
TEST wait_for_rebalance
new_val=$(get_xattr $B0/${V0}1/dir)
TEST [ ! x"$old_val" = x"$new_val" ]
cleanup
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