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#!/bin/bash -ex
NUM_OSDS=$(ceph osd ls | wc -l)
if [ $NUM_OSDS -lt 6 ]; then
echo "test requires at least 6 OSDs"
exit 1
fi
NUM_POOLS=$(ceph osd pool ls | wc -l)
if [ $NUM_POOLS -gt 0 ]; then
echo "test requires no preexisting pools"
exit 1
fi
function wait_for() {
local sec=$1
local cmd=$2
while true ; do
if bash -c "$cmd" ; then
break
fi
sec=$(( $sec - 1 ))
if [ $sec -eq 0 ]; then
echo failed
return 1
fi
sleep 1
done
return 0
}
# enable
ceph config set mgr mgr/pg_autoscaler/sleep_interval 5
ceph mgr module enable pg_autoscaler
# pg_num_min
ceph osd pool create a 16 --pg-num-min 4
ceph osd pool create b 16 --pg-num-min 2
ceph osd pool set a pg_autoscale_mode on
ceph osd pool set b pg_autoscale_mode on
wait_for 120 "ceph osd pool get a pg_num | grep 4"
wait_for 120 "ceph osd pool get b pg_num | grep 2"
# target ratio
ceph osd pool set a target_size_ratio 5
ceph osd pool set b target_size_ratio 1
sleep 10
APGS=$(ceph osd dump -f json-pretty | jq '.pools[0].pg_num_target')
BPGS=$(ceph osd dump -f json-pretty | jq '.pools[1].pg_num_target')
test $APGS -gt 100
test $BPGS -gt 10
# small ratio change does not change pg_num
ceph osd pool set a target_size_ratio 7
ceph osd pool set b target_size_ratio 2
sleep 10
APGS2=$(ceph osd dump -f json-pretty | jq '.pools[0].pg_num_target')
BPGS2=$(ceph osd dump -f json-pretty | jq '.pools[1].pg_num_target')
test $APGS -eq $APGS2
test $BPGS -eq $BPGS2
# target_size
ceph osd pool set a target_size_bytes 1000000000000000
ceph osd pool set b target_size_bytes 1000000000000000
ceph osd pool set a target_size_ratio 0
ceph osd pool set b target_size_ratio 0
wait_for 60 "ceph health detail | grep POOL_TARGET_SIZE_BYTES_OVERCOMMITTED"
ceph osd pool set a target_size_bytes 1000
ceph osd pool set b target_size_bytes 1000
ceph osd pool set a target_size_ratio 1
wait_for 60 "ceph health detail | grep POOL_HAS_TARGET_SIZE_BYTES_AND_RATIO"
ceph osd pool rm a a --yes-i-really-really-mean-it
ceph osd pool rm b b --yes-i-really-really-mean-it
echo OK
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