DBproxy-0.2.5-1安装与配置

依赖库安装

安装必要的源和包：

yum install -y http://www.percona.com/downloads/percona-release/redhat/0.1-4/percona-release-0.1-4.noarch.rpm
yum install -y  jemalloc jemalloc-devel libevent libevent-devel openssl openssl-devel lua lua-devel glib2 glib2-devel bison flex libtool.x86_64 libtool-devel libffi libffi-devel gettext gettext-devel
yum install -y gtk-doc
yum install -y mysql-devel

安装 glib-2.42.0

1. 下载glib-2.42.0

wget http://saimei.ftp.acc.umu.se/pub/gnome/sources/glib/2.42/glib-2.42.0.tar.xz

2. 解压glib-2.42.0.tar.xz

tar -xvf glib-2.42.0.tar.xz 

3. 安装，默认安装到：

cd glib-2.42.0
autoreconf -ivf
./configure 

编译安装DBproxy

1. 进入DBproxy目录

cd DBProxy/

2. 修改权限，由于文件从window下拷贝上来时，丢失了原有的权限信息

chmod 777 *

2. 编译安装

sh autogen.sh
sh bootstrap.sh
make
make install

配置DBproxy

1. 成功安装DBProxy之后，需要在安装目录下创建配置文件所在的文件夹，例如取名conf，默认安装路径：

/usr/local/mysql-proxy

mkdir /usr/local/mysql-proxy/conf

2. 拷贝示例配置文件

cp script/source.cnf.samples /usr/local/mysql-proxy/conf/source.cnf

3. 编辑db1.cnf配置文件，要注意的时，配置文件名称前缀要和其中的instance值相同

vi /usr/local/mysql-proxy/conf/source.cnf

3. 启动DBProxy

/usr/local/mysql-proxy/bin/mysql-proxy --defaults-file=/usr/local/mysql-proxy/conf/source.cnf

4. 查看日志文件，如果在配置文件中未修改日志存放位置，则默认在/opt/tmp/dbproxy_log/

cd /opt/tmp/dbproxy_log/
cat source.log

4. 这里，如果日志文件如下，已经有启动信息

[root@localhost dbproxy_log]# cat source.log
2018-09-07 16:50:34.632512: (message)chassis-unix-daemon.c:131(chassis_unix_proc_keepalive)[angel] we try to keep PID=3144 alive
2018-09-07 16:50:34.632885: (message)mysql-proxy-cli.c:954(main_cmdline)dbproxy 0.2.5 started - instance: source
2018-09-07 16:50:34.633048: (warning)chassis-filter.c:195(load_sql_filter_from_file)[filter][load from file][failed][No such file or directory]
2018-09-07 16:50:34.633599: (message)proxy-plugin.c:3833(network_mysqld_proxy_plugin_apply_config)proxy listening on port 0.0.0.0:3308
2018-09-07 16:50:34.635837: (message)network-backend.c:615(network_backends_add)add read/write backend: 127.0.0.1:3306 success
2018-09-07 16:50:34.637926: (message)network-backend.c:606(network_backends_add)add read-only backend 127.0.0.1:3306 to default backends
2018-09-07 16:50:34.637934: (message)network-backend.c:615(network_backends_add)add read-only backend: 127.0.0.1:3306 success
2018-09-07 16:50:34.637956: (message)proxy-sql-log.c:484(load_sql_filenames)load_files_from_dir /opt/tmp/dbproxy_log//sql
2018-09-07 16:50:34.637976: (message)proxy-sql-log.c:505(load_sql_filenames)load_files_from_dir /opt/tmp/dbproxy_log//sql success
2018-09-07 16:50:34.638641: (message)proxy-percentile.c:336(check_percentile)check_percentile thread start
2018-09-07 16:50:34.638772: (message)proxy-sql-log.c:25(log_manager)log_manager thread start
2018-09-07 16:50:34.645322: (message)chassis-event-thread.c:382(chassis_event_threads_start)starting 16 threads
2018-09-07 16:50:35.638774: (message)proxy-plugin.c:3444(check_state)check_state thread start
2018-09-07 16:50:35.642434: (warning)proxy-plugin.c:3549(check_state)set backend (127.0.0.1:3306) state to UP

5. 连接DBproxy(与连接mysql命令相同),其中，使用的账户名和密码默认为guest

mysql -uguest -pguest -P3309 -h127.0.0.1

6. 进入DBproxy的控制台，则配置成功

[root@localhost dbproxy_log]#  mysql -uguest -pguest -P3309 -h127.0.0.1
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.0.99-agent-admin

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