62 lines
2.1 KiB
Bash
62 lines
2.1 KiB
Bash
|
#!/bin/bash
|
||
|
|
|
||
|
|
# Copyright (c) 2016 Red Hat, Inc.
|
||
|
|
#
|
||
|
|
# This program is free software: you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation, either version 3 of the License, 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 General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
# Author: Lin Li <lilin@redhat.com>
|
||
|
|
|
||
|
|
|
||
|
|
source ../include/ec.sh || exit 200
|
||
|
|
|
||
|
|
function main (){
|
||
|
|
Multipath_installation || Fail "fail to install device-mapper-multipath"
|
||
|
|
Print_kernel_info
|
||
|
|
Print_multipath_pkginfo
|
||
|
|
|
||
|
|
local exit_status=0
|
||
|
|
local oom_adj oom_score_adj oom_score lock_file
|
||
|
|
|
||
|
|
# Log "do not kill the mingetty and sshd by oom_killer"
|
||
|
|
# Cmd "pidof mingetty"
|
||
|
|
# local ttys=$_STDOUT
|
||
|
|
# Cmd "pidof sshd"
|
||
|
|
# ttys="$ttys $_STDOUT"
|
||
|
|
# Cmd "for t in $ttys; do echo -1000 > /proc/\$t/oom_score_adj; done"
|
||
|
|
|
||
|
|
Multipathd_start || Fail "fail to start multipathd"
|
||
|
|
local pid=$(pidof multipathd)
|
||
|
|
#this bug is for 6.2 has oom_score_adj
|
||
|
|
Cmd "[ -r /proc/$pid/oom_score_adj ]" || Fail "oom_score_adj not existing, do NOT support this kernel version"
|
||
|
|
|
||
|
|
Cmd "cat /proc/$pid/oom_adj"
|
||
|
|
oom_adj=$_STDOUT
|
||
|
|
Cmd "cat /proc/$pid/oom_score_adj"
|
||
|
|
oom_score_adj=$_STDOUT
|
||
|
|
Cmd "cat /proc/$pid/oom_score"
|
||
|
|
oom_score=$_STDOUT
|
||
|
|
|
||
|
|
#should set the oom_adj to -17 and oom_score_adj to -1000 so that multipathd will never be selected to kill by oom_killer
|
||
|
|
[ X"$oom_adj" = X"-17" ] || Fail "oom_adj is not -17"
|
||
|
|
[ X"$oom_score_adj" = X"-1000" ] || Fail "oom_score_adj is not -1000"
|
||
|
|
|
||
|
|
# we don't need to test the real oom action. just check the oom_adj
|
||
|
|
Multipathd_stop || Fail "fail to stop multipathd"
|
||
|
|
return $exit_status
|
||
|
|
}
|
||
|
|
|
||
|
|
main || Fail "multipathd invokes oom_killer"
|
||
|
|
|
||
|
|
Pass
|