blob: 5f76b5b332498633c04e49d07401fd8e5cb3e3e6 (
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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
#!/bin/sh
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# Configure a postgresql hot standby server
here=`echo "import os; print os.path.realpath('$0')" | python`; here=`dirname $here`
mkdir -p $1
root=`echo "import os; print os.path.realpath('$1')" | python`
# Server address
addr=$2
if [ "$addr" = "" ]; then
host="localhost"
listen="*"
port="5432"
else
host=`$here/../../modules/http/httpd-addr ip $addr`
if [ "$host" = "" ]; then
host="localhost"
listen="*"
else
listen=$host
fi
port=`$here/../../modules/http/httpd-addr port $addr`
fi
bport=`expr $port + 1000`
# Master server address
if [ "$3" = "" ]; then
mhost="localhost"
mport="5432"
mhttpport="80"
else
mhost="$3"
mport="$4"
mhttpport="$5"
fi
pgsql_prefix=`cat $here/pgsql.prefix`
pgbouncer_prefix=`cat $here/pgbouncer.prefix`
user=`id -un`
mkdir -p $root/sqldb/data
chmod 700 $root/sqldb/data
mkdir -p $root/sqldb/archive
mkdir -p $root/sqldb/backup
if [ -f "$root/sqldb/log.conf" ]; then
pgsql_log=`cat $root/sqldb/log.conf`
else
mkdir -p $root/logs
pgsql_log="cat >>$root/logs/postgresql"
fi
mkdir -p $root/sqldb
mkdir -p $root/sqldb/tmp
echo $pgsql_log >$root/sqldb/logger
# Initialize from a backup of the master
if [ ! -f $root/sqldb/data/postgresql.conf ]; then
uname=`uname -s`
if [ $uname = "Darwin" ]; then
tar=gnutar
else
tar=tar
fi
(curl -L -# http://$mhost:$mhttpport/pgsql-restore | $tar -C $root/sqldb -xz) 2>&1 | grep -v "100.0%" | sh $root/sqldb/logger
mkdir -p $root/sqldb/data/pg_xlog/archive_status
chmod 700 $root/sqldb/data/pg_xlog/archive_status
fi
# Generate server configuration
cp $root/sqldb/data/postgresql-init.conf $root/sqldb/data/postgresql.conf
cat >>$root/sqldb/data/postgresql.conf <<EOF
# Generated by: pgsql-standby-conf $*
# Setup logging
log_min_messages = NOTICE
log_min_error_statement = NOTICE
log_min_duration_statement = -1
log_checkpoints = on
log_connections = off
log_disconnections = off
log_duration = off
log_lock_waits = on
log_statement = none
# Listen
listen_addresses = '$listen'
port = $port
unix_socket_directory = '$root/sqldb/tmp'
# Setup archival
archive_mode = on
archive_command = '$here/pgsql-archive $root $host $bport %p %f'
# Setup hot standby with streaming replication
wal_level = hot_standby
max_wal_senders = 5
wal_keep_segments = 32
# Enable hot standby
hot_standby = on
EOF
# Generate recovery configuration
cat >$root/sqldb/data/recovery.conf << EOF
# Generated by: pgsql-standby-conf $*
# Start in standby mode
standby_mode = 'on'
primary_conninfo = 'host=$mhost port=$mport user=standby'
# Failover
trigger_file = '$root/sqldb/failover'
restore_command = 'curl -L -# http://$mhost:$mhttpport/pgsql-archive/%f -o "%p" 2>&1 | grep -v "100.0%"'
EOF
# Generate database restore script
mkdir -p $root/sqldb/scripts
cat >$root/sqldb/scripts/restore <<EOF
#!/bin/sh
$here/pgsql-restore $root
EOF
chmod 700 $root/sqldb/scripts/restore
# Configure HTTPD to serve backup and archive files
if [ -f "$root/conf/httpd.conf" ]; then
cat >>$root/conf/httpd.conf <<EOF
# Generated by: pgsql-standby-conf $*
# Serve PostgreSQL backup and WAL archive files
ScriptAlias /pgsql-restore "$root/sqldb/scripts/restore"
Alias /pgsql-archive "$root/sqldb/archive"
EOF
fi
# Configure PgBouncer
mkdir -p $root/logs
id=`id -un`
cat >$root/sqldb/data/pgbouncer.conf <<EOF
[databases]
db = host=$host port=$port dbname=db user=bouncer
[pgbouncer]
pool_mode = session
listen_addr = $listen
listen_port = $bport
unix_socket_dir =
auth_type = trust
auth_file=$root/sqldb/data/pgbouncer-auth.conf
logfile = $root/logs/pgbouncer
pidfile = $root/logs/pgbouncer.pid
max_client_conn = 1000
pool_mode = transaction
server_reset_query =
default_pool_size = 500
min_pool_size = 5
reserve_pool_size = 50
log_connections = 0
log_disconnections = 0
stats_period = 3600
admin_users = $id
EOF
cat >$root/sqldb/data/pgbouncer-auth.conf <<EOF
"$id" "password"
EOF
|
