diff options
Diffstat (limited to 'sca-cpp/branches/lightweight-sca/components/sqldb/pgsql-standby-conf')
| -rwxr-xr-x | sca-cpp/branches/lightweight-sca/components/sqldb/pgsql-standby-conf | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/sca-cpp/branches/lightweight-sca/components/sqldb/pgsql-standby-conf b/sca-cpp/branches/lightweight-sca/components/sqldb/pgsql-standby-conf new file mode 100755 index 0000000000..5f76b5b332 --- /dev/null +++ b/sca-cpp/branches/lightweight-sca/components/sqldb/pgsql-standby-conf @@ -0,0 +1,193 @@ +#!/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 + |