PostgreSQL Monitor pg_activity

PostgreSQL Monitor pg_activity

Command line tool for PostgreSQL server activity monitoring.

https://github.com/julmon/pg_activity/

依赖的包

• python ≥ 2.6
• psycopg2 ≥ 2.2.1
• psutil ≥ 0.5.1

软件包

Python-2.7.tar.bz2   psycopg2-2.6.1.tar.gz   psutil-3.2.2.tar.gz

安装 python2.7

[root@node3 soft_bak]# tar jxvf Python-2.7.tar.bz2

[root@node3 soft_bak]# cd Python-2.7

[root@node3 Python-2.7]# ./configure --prefix=/usr/local/python2.7/

[root@node3 Python-2.7]# make

[root@node3 Python-2.7]# make install

添加/usr/local/python2.7/bin/到Linux的环境变量中

[root@node3 bin]# echo $PATH

/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

[root@node3 bin]# PATH="$PATH":/usr/local/python2.7/bin/

[root@node3 bin]# echo $PATH

/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/python2.7/bin/

删除/usr/bin中的python文件，为python2.7创建连接

[root@node3 bin]# cd /usr/bin/

[root@node3 bin]# rm -rf python

[root@node3 bin]# ln -s /usr/local/python2.7/bin/python ./python

[root@node3 bin]# python

Python 2.7 (r27:82500, Jan 14 2016, 16:13:36)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>>

解决Python升级后yum不能用的问题

#修改yum文件

vi /usr/bin/yum

将文件头部的

#！/usr/bin/python

改为如下内容

#！/usr/bin/python2.6

安装psutil

[root@node3 soft_bak]# tar zxvf psutil-3.2.2.tar.gz

[root@node3 PGMonitor]# cd psutil-3.2.2

[root@node3 psutil-3.2.2]# python setup.py install

安装psycopg2

[root@node3 soft_bak]# tar zxvf psycopg2-2.6.1.tar.gz

[root@node3 PGMonitor]# cd psycopg2-2.6.1

[root@node3 psycopg2-2.6.1]# python setup.py build_ext --pg-config /usr/local/pg945/bin/pg_config  build

[root@node3 psycopg2-2.6.1]# python setup.py build_ext --pg-config /usr/local/pg945/bin/pg_config  install

安装setuptools

[root@node3 soft_bak]# tar zxvf setuptools-19.2.tar.gz

[root@node3 setuptools-19.2]# cd setuptools-19.2

[root@node3 setuptools-19.2]# python setup.py install

安装pg_activity

[root@node3 soft_bak]# unzip pg_activity-master.zip

[root@node3 soft_bak]# cd pg_activity-master

[root@node3 pg_activity-master]# python setup.py install

在python2.7安装目录下会产生如下pg_activity命令

[root@node3 pg_activity-master]# cd /usr/local/python2.7/bin/

[root@node3 bin]# ls

2to3  easy_install  easy_install-2.7  idle  pg_activity  pydoc  python  python2.7  python2.7-config  python-config  smtpd.py

启动PostgreSQL

[postgres@node3 bin]$ ./pg_ctl -D ../data/ start

server starting

监控PostgreSQL数据库状态

[postgres@node3 ~]$ cd /usr/local/python2.7/bin/

[postgres@node3 bin]$ ./pg_activity

生成少量数据

[postgres@node3 bin]$ ./pgbench -i -F 100 -s 142 -h localhost -p 5432 -U postgres postgres

进行pgbench测试

[postgres@node3 bin]$ ./pgbench -h localhost -p 5432 -d postgres -c 10 -j 10 -r -T 600