collectd+graphite使用

collectd和graphite是用来做什么的

• collectd: 是一个守护(daemon)进程，用来收集系统性能和提供各种存储方式来存储不同值的机制。比如基本的系统性能的收集（CPU、memory、process等）
• graphite：是一个企业级的监控工具，可以在廉价机硬件上运行；Graphite仅是一个画图工具，不主动地收集数据，而是将接收到的数据以图形的方式展现出来。

这里结合collectd和graphite，collectd用于收集数据，graphite以图表的形式显示数据。

collect安装

• 安装collectd-5.5.0.tar.gz，这个是目前最新版本，对java等支持非常好
• 在root@10.175.180.180这台机：
  
  • 安装包在/tmp目录下，将其解压安装
  • 安装完在/etc目录下有份collectd.conf配置文件，在其中配置需要的即可
  • 启动命令：service collectd restart/start

install process:

1. Install prereqs

   yum -y install libcurl libcurl-devel rrdtool rrdtool-devel rrdtool-prel libgcrypt-devel gcc make gcc-c++

2. Get Collectd, untar it, make it and install

   wget http://collectd.org/files/collectd-5.5.0.tar.gz

   tar zxvf collectd-5.5.0.tar.gz

   cd collectd-5.5.0

   ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --libdir=/usr/lib --mandir=/usr/share/man --enable-all-plugins

   make

   make install

3. Copy the default init.d script

   cp /tmp/collectd-5.4.0/contrib/redhat/init.d-collectd /etc/init.d/collectd

4. Set the correct permissions

   chmod +x /etc/init.d/collectd

5. Start the deamon

   service collectd start

Note:If cannot tar the collectd-5.5.0.tar.gz, you should upload it.

graphite安装

这里不介绍graphite的安装，本人没有安装graphite，在配置的Linux上已经安装好了graphite，就不误导大家了。推荐大家浏览：http://my.oschina.net/fufangchun/blog/232895?p=1，这里有详细的原理、安装等说明。

collectd.conf基本配置

########################################################################################################################################## Global                                                                     ##----------------------------------------------------------------------------## Global settings for the daemon.                                            ###############################################################################Hostname    "localhost"#FQDNLookup   true#BaseDir     "/var/lib/collectd"#PIDFile     "/var/run/collectd.pid"#PluginDir   "/usr/lib/collectd"#TypesDB     "/usr/share/collectd/types.db"

#----------------------------------------------------------------------------## Interval at which to query values. This may be overwritten on a per-plugin ## base by using the 'Interval' option of the LoadPlugin block:               ##   <LoadPlugin foo>                                                         ##       Interval 60                                                          ##   </LoadPlugin>                                                            ##----------------------------------------------------------------------------#<LoadPlugin write_graphite>  Interval 5</LoadPlugin>Interval     10Timeout      2ReadThreads  5WriteThreads 5

############################################################################### Logging                                                                    ##----------------------------------------------------------------------------## Plugins which provide logging functions should be loaded first, so log     ## messages generated when loading or configuring other plugins can be        ## accessed.                                                                  ###############################################################################LoadPlugin syslogLoadPlugin logfile<Plugin logfile>LogLevel infoFile STDOUTTimestamp truePrintSeverity false</Plugin><Plugin syslog>LogLevel info</Plugin>

############################################################################### LoadPlugin section                                                         ##----------------------------------------------------------------------------## Lines beginning with a single `#' belong to plugins which have been built  ## but are disabled by default.                                               ##                                                                            ## Lines begnning with `##' belong to plugins which have not been built due   ## to missing dependencies or because they have been deactivated explicitly.  ###############################################################################LoadPlugin cpuLoadPlugin interfaceLoadPlugin memoryLoadPlugin processesLoadPlugin usersLoadPlugin diskLoadPlugin javaLoadPlugin write_graphite

############################################################################### Plugin configuration                                                       ##----------------------------------------------------------------------------## In this section configuration stubs for each plugin are provided. A desc-  ## ription of those options is available in the collectd.conf(5) manual page. ###############################################################################<Plugin disk>        Disk "/^[vhs]d[a-f][0-9]?$/"        IgnoreSelected false</Plugin><Plugin interface>        Interface "eth0"        IgnoreSelected false</Plugin><Plugin  write_graphite>    <Node "graphing">        Host "localhost"        Port "2003"        Protocol "tcp"        LogSendErrors true        Prefix "collectd."        StoreRates true        AlwaysAppendDS false        EscapeCharacter "_"    </Node></Plugin>

graphite显示的结果