ceph/qa/standalone/osd/osd-fast-mark-down.sh

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#!/usr/bin/env bash
#
# Copyright (C) 2016 Piotr Dałek <git@predictor.org.pl>
# Copyright (C) 2014, 2015 Red Hat <contact@redhat.com>
#
# Author: Piotr Dałek <git@predictor.org.pl>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library Public License for more details.
#
source $CEPH_ROOT/qa/standalone/ceph-helpers.sh
MAX_PROPAGATION_TIME=30
function run() {
local dir=$1
shift
rm -f $dir/*.pid
export CEPH_MON="127.0.0.1:7126" # git grep '\<7126\>' : there must be only one
export CEPH_ARGS
CEPH_ARGS+="--fsid=$(uuidgen) --auth-supported=none "
OLD_ARGS=$CEPH_ARGS
CEPH_ARGS+="--osd-fast-fail-on-connection-refused=false "
echo "Ensuring old behavior is there..."
test_fast_kill $dir && (echo "OSDs died too early! Old behavior doesn't work." ; return 1)
CEPH_ARGS=$OLD_ARGS"--osd-fast-fail-on-connection-refused=true "
OLD_ARGS=$CEPH_ARGS
CEPH_ARGS=$OLD_ARGS"--ms_type=async --mon-host=$CEPH_MON"
echo "Testing async msgr..."
test_fast_kill $dir || return 1
return 0
}
function test_fast_kill() {
# create cluster with 3 osds
setup $dir || return 1
run_mon $dir a --osd_pool_default_size=3 || return 1
run_mgr $dir x || return 1
for oi in {0..2}; do
run_osd $dir $oi || return 1
pids[$oi]=$(cat $dir/osd.$oi.pid)
done
create_rbd_pool || return 1
# make some objects so osds to ensure connectivity between osds
timeout 20 rados -p rbd bench 10 write -b 4096 --max-objects 128 --no-cleanup || return 1
sleep 1
killid=0
previd=0
# kill random osd and see if after max MAX_PROPAGATION_TIME, the osd count decreased.
for i in {1..2}; do
while [ $killid -eq $previd ]; do
killid=${pids[$RANDOM%${#pids[@]}]}
done
previd=$killid
kill -9 $killid
time_left=$MAX_PROPAGATION_TIME
down_osds=0
while [ $time_left -gt 0 ]; do
sleep 1
time_left=$[$time_left - 1];
grep -m 1 -c -F "ms_handle_refused" $dir/osd.*.log > /dev/null
if [ $? -ne 0 ]; then
continue
fi
down_osds=$(ceph osd tree | grep -c down)
if [ $down_osds -lt $i ]; then
# osds not marked down yet, try again in a second
continue
elif [ $down_osds -gt $i ]; then
echo Too many \($down_osds\) osds died!
return 1
else
break
fi
done
if [ $down_osds -lt $i ]; then
echo Killed the OSD, yet it is not marked down
ceph osd tree
return 1
fi
done
pkill -SIGTERM rados
teardown $dir || return 1
}
main osd-fast-mark-down "$@"
# Local Variables:
# compile-command: "cd ../.. ; make -j4 && test/osd/osd-fast-mark-down.sh"
# End: