diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/bugs/bug-1099890.t | 120 | ||||
| -rw-r--r-- | tests/dht.rc | 19 |
2 files changed, 139 insertions, 0 deletions
diff --git a/tests/bugs/bug-1099890.t b/tests/bugs/bug-1099890.t new file mode 100644 index 00000000000..1c07b62c02f --- /dev/null +++ b/tests/bugs/bug-1099890.t @@ -0,0 +1,120 @@ +#!/bin/bash + +. $(dirname $0)/../include.rc +. $(dirname $0)/../volume.rc +. $(dirname $0)/../dht.rc + +## TO-DO: Fix the following once the dht du refresh interval issue is fixed: +## 1. Do away with sleep(1). +## 2. Do away with creation of empty files. + +cleanup; + +TEST glusterd; +TEST pidof glusterd; + +# Create 2 loop devices, one per brick. +TEST truncate -s 100M $B0/brick1 +TEST truncate -s 100M $B0/brick2 + +TEST L1=`losetup --find --show $B0/brick1` +TEST mkfs.xfs $L1 + +TEST L2=`losetup --find --show $B0/brick2` +TEST mkfs.xfs $L2 + +TEST mkdir -p $B0/${V0}{1,2} + +TEST mount -t xfs $L1 $B0/${V0}1 +TEST mount -t xfs $L2 $B0/${V0}2 + +# Create a plain distribute volume with 2 subvols. +TEST $CLI volume create $V0 $H0:$B0/${V0}{1,2}; + +TEST $CLI volume start $V0; +EXPECT "Started" volinfo_field $V0 'Status'; + +TEST $CLI volume quota $V0 enable; + +TEST $CLI volume set $V0 features.quota-deem-statfs on + +TEST $CLI volume quota $V0 limit-usage / 150MB; + +TEST $CLI volume set $V0 cluster.min-free-disk 50% + +TEST glusterfs -s $H0 --volfile-id=$V0 $M0 + +# Make sure quota-deem-statfs is working as expected +EXPECT "150M" echo `df -h $M0 -P | tail -1 | awk {'print $2'}` + +# Create a new file 'foo' under the root of the volume, which hashes to subvol-0 +# of DHT, that consumes 40M +TEST dd if=/dev/zero of=$M0/foo bs=5M count=8 + +TEST stat $B0/${V0}1/foo +TEST ! stat $B0/${V0}2/foo + +# Create a new file 'bar' under the root of the volume, which hashes to subvol-1 +# of DHT, that consumes 40M +TEST dd if=/dev/zero of=$M0/bar bs=5M count=8 + +TEST ! stat $B0/${V0}1/bar +TEST stat $B0/${V0}2/bar + +# Touch a zero-byte file on the root of the volume to make sure the statfs data +# on DHT is refreshed +sleep 1; +TEST touch $M0/empty1; + +# At this point, the available space on each subvol {60M,60M} is greater than +# their min-free-disk {50M,50M}, but if this bug still exists, then +# the total available space on the volume as perceived by DHT should be less +# than min-free-disk, i.e., +# +# consumed space returned per subvol by quota = (40M + 40M) = 80M +# +# Therefore, consumed space per subvol computed by DHT WITHOUT the fix would be: +# (80M/150M)*100 = 53% +# +# Available space per subvol as perceived by DHT with the bug = 47% +# which is less than min-free-disk + +# Now I create a file that hashes to subvol-1 (counting from 0) of DHT. +# If this bug still exists,then DHT should be routing this creation to subvol-0. +# If this bug is fixed, then DHT should be routing the creation to subvol-1 only +# as it has more than min-free-disk space available. + +TEST dd if=/dev/zero of=$M0/file bs=1K count=1 +sleep 1; +TEST ! stat $B0/${V0}1/file +TEST stat $B0/${V0}2/file + +# Touch another zero-byte file on the root of the volume to refresh statfs +# values stored by DHT. + +TEST touch $M0/empty2; + +# Now I create a new file that hashes to subvol-0, at the end of which, there +# will be less than min-free-disk space available on it. +TEST dd if=/dev/zero of=$M0/fil bs=5M count=4 +sleep 1; +TEST stat $B0/${V0}1/fil +TEST ! stat $B0/${V0}2/fil + +# Touch to refresh statfs info cached by DHT + +TEST touch $M0/empty3; + +# Now I create a file that hashes to subvol-0 but since it has less than +# min-free-disk space available, its data will be cached on subvol-1. + +TEST dd if=/dev/zero of=$M0/zz bs=5M count=1 + +TEST stat $B0/${V0}1/zz +TEST stat $B0/${V0}2/zz + +EXPECT "$V0-client-1" dht_get_linkto_target "$B0/${V0}1/zz" + +EXPECT "1" is_dht_linkfile "$B0/${V0}1/zz" + +cleanup; diff --git a/tests/dht.rc b/tests/dht.rc index a11bbfd8a97..50c4532617e 100644 --- a/tests/dht.rc +++ b/tests/dht.rc @@ -91,3 +91,22 @@ function remove_brick_completed() echo $val return $val } + +function dht_get_linkto_target() +{ + local path=$1; + echo `getfattr -d -m . -e text --only-values --absolute-names --name=trusted.glusterfs.dht.linkto $path` +} + +function is_dht_linkfile() +{ + local path=$1 + retval=0 + local output=`stat --format=%a $path` + if [ $output -eq 1000 ]; then + retval=1 + fi + + echo $retval + return $retval +} |