postgresql pgagent 的安装及使用

pgagent 作为postgresql的一个任务调度代理，在postgresql 9.0 以前是附带在pgadmin 包下面的，只是默认不安装，9.0之后作为了一个单独是的安装包。所以要使用pgagent定时任务调度的话还得单独安装。

在安装pgagent之前还需要安装另外的2个依赖包，cmake 以及wxGTK.

这里我选择的软件版本分别是

postgresql 9.5.1
pgagent-3.4.0下载地址：https://www.pgadmin.org/download/pgagent.php
cmake-2.8.5 下载地址：http://cmake.org/download/
wxGTK-2.8.12 下载地址：http://www.wxwidgets.org/downloads/

一、postgresql 的安装

（略）

二、cmake的安装

将安装包上传至服务器并解压，解压后进入解压后生成的cmake-2.8.5目录，执行以下命令。

[root@lsrac97 ~]# tar zxvf pgagent-3.4.0.tar.gz
[root@lsrac97 ~]# cd cmake-2.8.5
[root@lsrac97 cmake-2.8.5]# ./bootstrap && make && make install

三、wxGTK-2.8.12 的安装

首先配置.bash_profile参数文件

[root@lsrac97 ~]#vi .bash_profile
#加入以下内容：

PATH=$PATH:$HOME/bin:/usr/local/wxGTK-2.8.12/bin
export LD_LIBRARY_PATH=/usr/local/wxGTK-2.8.12/lib:$LD_LIBRARY_PATH
#并生效参数文件，命令如下：
[root@lsrac97 ~]#source .bash_profile

接着解压该安装包并进入其目录，然后编译和安装

[root@lsrac97 wxGTK-2.8.12 ]# ./configure --enable-shared=no --enable-unicode=yes --prefix=/usr/local/wxGTK-2.8.12
[root@lsrac97 wxGTK-2.8.12 ]# make && make install

四、pgagent的安装

上传安装包至服务器并解压,进入目录执行如下命令：

[root@lsrac97 pgAgent-3.4.0-Source]# cmake ./

提示报错：没有安装postgresql

CMake Error at cmake/FindPG.cmake:131 (MESSAGE):
No PostgreSQL installation could be found.
Call Stack (most recent call first):
CMakeLists.txt:107 (FIND_PACKAGE)

这里需要先指定postgresql环境变量

[root@lsrac97 pgAgent-3.4.0-Source]# source /home/postgres/.bash_profile
[root@lsrac97 pgAgent-3.4.0-Source]# cmake ./

--  
-- ================================================================================
-- Configuration summary:
--  
--   Project                     : pgagent
--   Description                 : pgAgent is a job scheduling engine for PostgreSQL
--   Version                     : 3.4.0
--  
--   PostgreSQL version string   : PostgreSQL 9.5.1
--   PostgreSQL version parts    : 9.5.1
--   PostgreSQL path             : /app/postgresql/pg951
--   PostgreSQL config binary    : /app/postgresql/pg951/bin/pg_config
--   PostgreSQL include path     : /app/postgresql/pg951/include
--   PostgreSQL library path     : /app/postgresql/pg951/lib
--   PostgreSQL share path       : /app/postgresql/pg951/share
--  
--   wxWidgets version           : 2.8.12
--   wxWidgets path              : /usr/local/wxGTK-2.8.12
--   wxWidgets config binary     : /usr/local/wxGTK-2.8.12/bin/wx-config
--   wxWidgets Static linking    : YES
--   wxWidgets Debug?            : NO
-- ================================================================================
--  
-- Configuring done
-- Generating done
-- Build files have been written to: /app/pgAgent-3.4.0-Source

然后编译安装 make && make install即可

[root@lsrac97 pgAgent-3.4.0-Source]# make && make install
--  
-- ================================================================================
-- Configuration summary:
--  
--   Project                     : pgagent
--   Description                 : pgAgent is a job scheduling engine for PostgreSQL
--   Version                     : 3.4.0
--  
--   PostgreSQL version string   : PostgreSQL 9.5.1
--   PostgreSQL version parts    : 9.5.1
--   PostgreSQL path             : /app/postgresql/pg951
--   PostgreSQL config binary    : /app/postgresql/pg951/bin/pg_config
--   PostgreSQL include path     : /app/postgresql/pg951/include
--   PostgreSQL library path     : /app/postgresql/pg951/lib
--   PostgreSQL share path       : /app/postgresql/pg951/share
--  
--   wxWidgets version           : 2.8.12
--   wxWidgets path              : /usr/local/wxGTK-2.8.12
--   wxWidgets config binary     : /usr/local/wxGTK-2.8.12/bin/wx-config
--   wxWidgets Static linking    : YES
--   wxWidgets Debug?            : NO
-- ================================================================================
--  
-- Configuring done
-- Generating done
-- Build files have been written to: /app/pgAgent-3.4.0-Source
Scanning dependencies of target pgagent
[ 12%] Building CXX object CMakeFiles/pgagent.dir/job.cpp.o
[ 25%] Building CXX object CMakeFiles/pgagent.dir/win32.cpp.o
[ 37%] Building CXX object CMakeFiles/pgagent.dir/precomp.cpp.o
[ 50%] Building CXX object CMakeFiles/pgagent.dir/misc.cpp.o
[ 62%] Building CXX object CMakeFiles/pgagent.dir/unix.cpp.o
[ 75%] Building CXX object CMakeFiles/pgagent.dir/pgAgent.cpp.o
[ 87%] Building CXX object CMakeFiles/pgagent.dir/connection.cpp.o
Linking CXX executable pgagent
[ 87%] Built target pgagent
Scanning dependencies of target run
[ 87%] Generating pgagent--3.4.sql, pgagent.control
[100%] Built target run
[root@lsrac97 pgAgent-3.4.0-Source]# make install
[ 87%] Built target pgagent
[100%] Built target run
Install the project...
-- Install configuration: ""
-- Installing: /usr/local/bin/pgagent
-- Removed runtime path from "/usr/local/bin/pgagent"
-- Installing: /usr/local/share/pgagent.sql
-- Installing: /usr/local/share/pgagent_upgrade.sql
-- Installing: /usr/local/./README
-- Installing: /usr/local/./LICENSE
-- Installing: /app/postgresql/pg951/share/extension/pgagent--3.4.sql
-- Installing: /app/postgresql/pg951/share/extension/pgagent.control
-- Installing: /app/postgresql/pg951/share/extension/pgagent--unpackaged--3.4.sql

编译安装完之后切换postgres用户
进入数据库中，执行create extension pgagent;即可。

postgres=# create extension pgagent ;
CREATE EXTENSION

如此pgagent扩展安装完成。

下面是其中遇到的问题：
安装wxWidGets报错：

checking for GTK+ version...   
checking for pkg-config... /usr/bin/pkg-config  
checking for GTK+ - version >= 2.6.0... no  
*** Could not run GTK+ test program, checking why...  
*** The test program failed to compile or link. See the file config.log for the  
*** exact error that occurred. This usually means GTK+ is incorrectly installed.  
checking for pkg-config... (cached) /usr/bin/pkg-config  
checking for GTK+ - version >= 3.0.0... no  
*** Could not run GTK+ test program, checking why...  
*** The test program failed to compile or link. See the file config.log for the  
*** exact error that occured. This usually means GTK+ is incorrectly installed.  
checking for gtk-config... no  
checking for GTK - version >= 1.2.7... no  
*** The gtk-config script installed by GTK could not be found  
*** If GTK was installed in PREFIX, make sure PREFIX/bin is in  
*** your path, or set the GTK_CONFIG environment variable to the  
*** full path to gtk-config.  
checking for gtk-config... (cached) no  
checking for GTK - version >= 1.2.3... no  
*** The gtk-config script installed by GTK could not be found  
*** If GTK was installed in PREFIX, make sure PREFIX/bin is in  
*** your path, or set the GTK_CONFIG environment variable to the  
*** full path to gtk-config.  
configure: error:   
The development files for GTK+ were not found. For GTK+ 2, please  
ensure that pkg-config is in the path and that gtk+-2.0.pc is  
installed. For GTK+ 1.2 please check that gtk-config is in the path,  
and that the version is 1.2.3 or above. Also check that the  
libraries returned by 'pkg-config gtk+-2.0 --libs' or 'gtk-config  
--libs' are in the LD_LIBRARY_PATH or equivalent.

解决：
需要安装gtk2-devel和binutils