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-rwxr-xr-xsca-cpp/trunk/components/sqldb/pgsql-standby-conf122
1 files changed, 122 insertions, 0 deletions
diff --git a/sca-cpp/trunk/components/sqldb/pgsql-standby-conf b/sca-cpp/trunk/components/sqldb/pgsql-standby-conf
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+#!/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=`readlink -f $0`; here=`dirname $here`
+mkdir -p $1
+root=`readlink -f $1`
+
+# Master server address
+if [ "$2" = "" ]; then
+ mhost="localhost"
+ mport="5432"
+ mhttpport="80"
+else
+ mhost="$2"
+ mport="$3"
+ mhttpport="$4"
+fi
+
+# Server address
+addr=$5
+if [ "$addr" = "" ]; then
+ ip="*"
+ port="5432"
+else
+ ip=`$here/../../modules/http/httpd-addr ip $addr`
+ if [ "$ip" = "" ]; then
+ ip="*"
+ fi
+ port=`$here/../../modules/http/httpd-addr port $addr`
+fi
+
+pgsql_prefix=`cat $here/pgsql.prefix`
+mkdir -p $root/sqldb/data
+chmod 700 $root/sqldb/data
+mkdir -p $root/sqldb/archive
+mkdir -p $root/logs
+
+# Initialize from a backup of the master
+if [ ! -f $root/sqldb/data/postgresql.conf ]; then
+ (wget http://$mhost:$mhttpport/pgsql-backup -O - | tar -C $root/sqldb -xz) 1>>$root/logs/postgresql 2>&1
+ rm -rf $root/sqldb/data/postmaster.pid $root/sqldb/data/pg_xlog
+ 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: standby-conf $*
+
+# Listen
+listen_addresses = '$ip'
+port = $port
+
+# Setup archival
+archive_mode = on
+archive_command = 'cp %p $root/sqldb/archive/%f'
+
+# Setup hot standby with streaming replication
+wal_level = hot_standby
+max_wal_senders = 5
+wal_keep_segments = 32
+
+# Enable hot standby
+hot_standby = on
+
+EOF
+
+# Generate recovery configuration
+cat >$root/sqldb/data/recovery.conf << EOF
+# Generated by: pgsql-slave-conf $*
+
+# Start in standby mode
+standby_mode = 'on'
+primary_conninfo = 'host=$mhost port=$mport'
+
+# Failover
+trigger_file = '$root/sqldb/failover'
+
+restore_command = 'wget http://$mhost:$mhttpport/pgsql-archive/%f -O "%p"'
+
+EOF
+
+# Generate database backup script
+mkdir -p $root/sqldb/scripts
+cat >$root/sqldb/scripts/backup <<EOF
+#!/bin/sh
+$here/pgsql-backup $root localhost $port
+EOF
+chmod 700 $root/sqldb/scripts/backup
+
+# Configure HTTPD to serve backup and archive files
+if [ -f "$root/conf/httpd.conf" ]; then
+ cat >>$root/conf/httpd.conf <<EOF
+# Generated by: pgsql-conf $*
+
+# Serve PostgreSQL backup and WAL archive files
+ScriptAlias /pgsql-backup "$root/sqldb/scripts/backup"
+Alias /pgsql-archive "$root/sqldb/archive"
+
+EOF
+
+fi
+