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clustermd_tests: control speed limits on both nodes #271

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51 changes: 45 additions & 6 deletions clustermd_tests/func.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -169,20 +169,58 @@ stop_md()
}

record_system_speed_limit() {
system_speed_limit_max=`cat /proc/sys/dev/raid/speed_limit_max`
system_speed_limit_min=`cat /proc/sys/dev/raid/speed_limit_min`
local ip
local idx=0

for ip in $NODE1 $NODE2
do
nodes_system_speed_limit_min[$idx]=$(ssh $ip "cat /proc/sys/dev/raid/speed_limit_min")
nodes_system_speed_limit_max[$idx]=$(ssh $ip "cat /proc/sys/dev/raid/speed_limit_max")
idx=$[idx+1]
done
}

# To avoid sync action finishes before checking it, it needs to limit
# the sync speed
control_system_speed_limit() {
echo $test_speed_limit_min > /proc/sys/dev/raid/speed_limit_min
echo $test_speed_limit_max > /proc/sys/dev/raid/speed_limit_max
local ip
local idx=0

for ip in $NODE1 $NODE2
do
ssh $ip "echo ${nodes_test_speed_limit_min[$idx]} > /proc/sys/dev/raid/speed_limit_min"
ssh $ip "echo ${nodes_test_speed_limit_max[$idx]} > /proc/sys/dev/raid/speed_limit_max"
idx=$[idx+1]
done
}

restore_system_speed_limit() {
echo $system_speed_limit_min > /proc/sys/dev/raid/speed_limit_max
echo $system_speed_limit_max > /proc/sys/dev/raid/speed_limit_max
local ip
local idx=0
local min
local max

for ip in $NODE1 $NODE2
do
min=${nodes_system_speed_limit_min[$idx]}
max=${nodes_system_speed_limit_max[$idx]}

if [ -z "$min" ]
then
echo "$ip: speed_limit_min was not recorded, skip restoring." >> $logdir/$logfile
else
ssh $ip "echo $min > /proc/sys/dev/raid/speed_limit_min"
fi

if [ -z "$max" ]
then
echo "$ip: speed_limit_max was not recorded, skip restoring." >> $logdir/$logfile
else
ssh $ip "echo $max > /proc/sys/dev/raid/speed_limit_max"
fi

idx=$[idx+1]
done
}

record_selinux() {
Expand Down Expand Up @@ -238,6 +276,7 @@ do_setup()
{
check_env
ulimit -c unlimited
record_system_speed_limit
}

do_clean()
Expand Down
10 changes: 10 additions & 0 deletions test
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Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,20 @@ targetdir="/var/tmp"
logdir="$targetdir"
config=/tmp/mdadm.conf
testdir=$PWD/tests

# used by tests
system_speed_limit_max=0
system_speed_limit_min=0
test_speed_limit_min=100
test_speed_limit_max=500

# used by clustermd_tests
nodes_system_speed_limit_min=()
nodes_system_speed_limit_max=()
# NODE1, NODE2
nodes_test_speed_limit_min=(100 1000)
nodes_test_speed_limit_max=(500 100000)

devlist=
# If super1 metadata name doesn't have the same hostname with machine,
# it's treated as foreign.
Expand Down