blob: 5adfacdc21beaaa62593cfc76997d5485a87b119 (
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
#!/usr/bin/env bash
#
# Copyright (C) 2015 Red Hat <contact@redhat.com>
#
# Author: Kefu Chai <kchai@redhat.com>
#
# 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.
#
verbose=
test -d ../src && export PATH=$PATH:.
if ! which jq ; then
echo "Missing jq binary!"
exit 1
fi
if [ `uname` = FreeBSD ]; then
GETOPT=/usr/local/bin/getopt
else
GETOPT=getopt
fi
function osdmap_get() {
local store_path=$1
local query=$2
local epoch=${3:+-v $3}
local osdmap=`mktemp`
$CEPH_BIN/ceph-monstore-tool $store_path get osdmap -- \
$epoch -o $osdmap > /dev/null || return
echo $($CEPH_BIN/osdmaptool --dump json $osdmap 2> /dev/null | \
jq "$query")
rm -f $osdmap
}
function test_crush() {
local store_path=$1
local epoch=$2
local max_osd=$3
local crush=$4
local osdmap=`mktemp`
$CEPH_BIN/ceph-monstore-tool $store_path get osdmap -- \
-v $epoch -o $osdmap > /dev/null
$CEPH_BIN/osdmaptool --export-crush $crush $osdmap &> /dev/null
if $CEPH_BIN/crushtool --test --check $max_osd -i $crush > /dev/null; then
good=true
else
good=false
fi
rm -f $osdmap
$good || return 1
}
function die() {
local retval=$?
echo "$@" >&2
exit $retval
}
function usage() {
[ $# -gt 0 ] && echo -e "\n$@"
cat <<EOF
Usage: $0 [options ...] <mon-store>
Search backward for a latest known-good epoch in monstore. Rewrite the osdmap
epochs after it with the crush map in the found epoch if asked to do so. By
default, print out the crush map in the good epoch.
[-h|--help] display this message
[--out] write the found crush map to given file (default: stdout)
[--rewrite] rewrite the monitor storage with the found crush map
[--verbose] be more chatty
EOF
[ $# -gt 0 ] && exit 1
exit 0
}
function main() {
local temp
temp=$($GETOPT -o h --long verbose,help,mon-store:,out:,rewrite -n $0 -- "$@") || return 1
eval set -- "$temp"
local rewrite
while [ "$1" != "--" ]; do
case "$1" in
--verbose)
verbose=true
# set -xe
# PS4='${FUNCNAME[0]}: $LINENO: '
shift;;
-h|--help)
usage
return 0;;
--out)
output=$2
shift 2;;
--osdmap-epoch)
osdmap_epoch=$2
shift 2;;
--rewrite)
rewrite=true
shift;;
*)
usage "unexpected argument $1"
shift;;
esac
done
shift
local store_path="$1"
test $store_path || usage "I need the path to mon-store."
# try accessing the store; if it fails, likely means a mon is running
local last_osdmap_epoch
local max_osd
last_osdmap_epoch=$(osdmap_get $store_path ".epoch") || \
die "error accessing mon store at $store_path"
# get the max_osd # in last osdmap epoch, crushtool will use it to check
# the crush maps in previous osdmaps
max_osd=$(osdmap_get $store_path ".max_osd" $last_osdmap_epoch)
local good_crush
local good_epoch
test $verbose && echo "the latest osdmap epoch is $last_osdmap_epoch"
for epoch in `seq $last_osdmap_epoch -1 1`; do
local crush_path=`mktemp`
test $verbose && echo "checking crush map #$epoch"
if test_crush $store_path $epoch $max_osd $crush_path; then
test $verbose && echo "crush map version #$epoch works with osdmap epoch #$osdmap_epoch"
good_epoch=$epoch
good_crush=$crush_path
break
fi
rm -f $crush_path
done
if test $good_epoch; then
echo "good crush map found at epoch $epoch/$last_osdmap_epoch"
else
echo "Unable to find a crush map for osdmap version #$osdmap_epoch." 2>&1
return 1
fi
if test $good_epoch -eq $last_osdmap_epoch; then
echo "and mon store has no faulty crush maps."
elif test $output; then
$CEPH_BIN/crushtool --decompile $good_crush --outfn $output
elif test $rewrite; then
$CEPH_BIN/ceph-monstore-tool $store_path rewrite-crush -- \
--crush $good_crush \
--good-epoch $good_epoch
else
echo
$CEPH_BIN/crushtool --decompile $good_crush
fi
rm -f $good_crush
}
main "$@"
|
