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[email protected]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     10
Timeout      2
ReadThreads  5
WriteThreads 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 syslog
LoadPlugin logfile

<Plugin logfile>
LogLevel info
File STDOUT
Timestamp true
PrintSeverity 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 cpu
LoadPlugin interface
LoadPlugin memory
LoadPlugin processes
LoadPlugin users
LoadPlugin disk
LoadPlugin java
LoadPlugin 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