blob: 9961d2d3b0b15a4d6aba57a085b399aa58714eee (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#!/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
|
