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tromcho.net/tests/test_change_pg_count_online.sh
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#!/bin/bash -ex
OSD_COUNT=${OSD_COUNT:-6}
PG_COUNT=16
GLOBAL_CONFIG=',"client_retry_interval":1000'
. `dirname $0`/run_3osds.sh
$VITASTOR_FIO -bs=4M -direct=1 -iodepth=1 -fsync=1 -rw=write -pool=1 -inode=2 -size=128M
$VITASTOR_FIO -bs=4k -direct=1 -iodepth=4 -rw=randrw -pool=1 -inode=2 -size=128M -loops=100 \
-cluster_log_level=3 -runtime=60 &>./testdata/fio.log &
FIO_PID=$!
try_change()
{
n=$1
for i in {1..6}; do
echo --- Change PG count to $n --- >>testdata/osd$i.log
done
echo --- Change PG count to $n --- >>testdata/mon.log
$ETCDCTL put /vitastor/config/pools '{"1":{'$POOLCFG',"pg_size":'$PG_SIZE',"pg_minsize":'$PG_MINSIZE',"pg_count":'$n'}}'
echo "Pool 1 (testpool) PG count changed from $PG_COUNT to $n" >> testdata/pgr.log
PG_COUNT=$n
sleep 10
}
sleep 5
# 16 -> 32
try_change 32
# 32 -> 16
try_change 16
# 16 -> 25
try_change 25
# 25 -> 17
try_change 17
# 17 -> 16
try_change 16
wait $FIO_PID
grep -P 'Pool 1 \(testpool\) PG count changed from \d+ to \d+' testdata/fio.log > testdata/pgc.log
diff testdata/pgr.log testdata/pgc.log
format_green OK