graphite安装笔记

0.Graphite目录

Graphite安装之后，在安装位置(默认为/opt/graphite)的文件布局如下：

目录	介绍
/opt/graphite/bin	二进制文件目录
/opt/graphite/conf	配置文件目录
/opt/graphite/lib	库目录
/opt/graphite/storage	数据存放目录，包括log，whisper数据库，索引，rrd数据等
/opt/graphite/webapp	webapp文件存放目录
/opt/graphite/examples	获取数据的例子

1.安装环境
Python版本： 2.6.6
系统版本： CentOS release 6.4 (Final) 2.6.32-358.el6.x86_64
yum源：系统原有的

2.所需软件
①. carbon-0.9.10.tar.gz
②. graphite-web-0.9.10.tar.gz
③. whisper-0.9.10.tar.gz
④. check-dependencies.py

3.安装依赖
vi /etc/yum.repos.d/epel.repo
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

yum install bitmap bitmap-fonts-compat Django django-tagging fontconfig cairo python-devel python-memcached python-twisted pycairo mod_python python-ldap python-simplejson memcached python-zope-interface mod_wsgi python-sqlite2 bitmap Django django-tagging mod_python python-sqlite2 -y

可能出现的问题：

(1)yum数据源可能找不到，建议可以配置网易的yum数据源

1、下载新源及将本地源备份
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost ~]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
[root@localhost ~]# mv CentOS-Base.repo CentOS-Base.repo.bak
[root@localhost ~]# mv CentOS6-Base-163.repo CentOS-Base.repo
下载的CentOS6-Base-163.repo建议将里面的$releaserver统一修改为6或者5（根据lsb_release -a查看系统版本)

2、yum源更新

[root@localhost ~]# yum clean all && yum makecache && yum update -y

(2)需要使用代理

在/etc/yum.conf中加入

proxy=http://ip:port

proxy_username=your_proxy_user

proxy_password=your_proxy_password

4.安装Graphite组件
Graphite的默认安装位置是/opt/graphite/。
①.检查依赖：
wget https://launchpadlibrarian.net/104073214/check-dependencies.py
python check-dependencies.py
注：少什么，装什么。

②.安装graphite-web：
wget https://launchpadlibrarian.net/106575888/graphite-web-0.9.10.tar.gz
tar -axf graphite-web-0.9.10.tar.gz -C /usr/local/src/
cd /usr/local/src/graphite-web-0.9.10/
python setup.py install

②.安装whisper：
wget https://launchpadlibrarian.net/106575859/whisper-0.9.10.tar.gz
tar -axf whisper-0.9.10.tar.gz -C /usr/local/src/
cd /usr/local/src/whisper-0.9.10/
python setup.py install

③.安装carbon：
wget https://launchpadlibrarian.net/106575865/carbon-0.9.10.tar.gz
tar -axf carbon-0.9.10.tar.gz -C /usr/local/src/
cd /usr/local/src/carbon-0.9.10/
python setup.py install

5.配置http：

cp /opt/graphite/examples/example-graphite-vhost.conf /etc/httpd/conf.d/graphite.conf

vi /etc/httpd/conf.d/graphite.conf

# This needs to be in your server's config somewhere, probably
# the main httpd.conf
# NameVirtualHost *:80

# This line also needs to be in your server's config.
# LoadModule wsgi_module modules/mod_wsgi.so

# You need to manually edit this file to fit your needs.
# This configuration assumes the default installation prefix
# of /opt/graphite/, if you installed graphite somewhere else
# you will need to change all the occurances of /opt/graphite/
# in this file to your chosen install location.

<IfModule !wsgi_module.c>
LoadModule wsgi_module modules/mod_wsgi.so
</IfModule>

# XXX You need to set this up!
# Read http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGISocketPrefix
WSGISocketPrefix run/wsgi

<VirtualHost *:80>
ServerName 10.10.10.10
DocumentRoot "/opt/graphite/webapp"
ErrorLog /opt/graphite/storage/log/webapp/error.log
CustomLog /opt/graphite/storage/log/webapp/access.log common

# I've found that an equal number of processes & threads tends
# to show the best performance for Graphite (ymmv).
WSGIDaemonProcess graphite processes=5 threads=5 display-name='%{GROUP}' inactivity-timeout=120
WSGIProcessGroup graphite
WSGIApplicationGroup %{GLOBAL}
WSGIImportScript /opt/graphite/conf/graphite.wsgi process-group=graphite application-group=%{GLOBAL}

# XXX You will need to create this file! There is a graphite.wsgi.example
# file in this directory that you can safely use, just copy it to graphite.wgsi
WSGIScriptAlias / /opt/graphite/conf/graphite.wsgi

Alias /content/ /opt/graphite/webapp/content/
<Location "/content/">
SetHandler None
</Location>

# XXX In order for the django admin site media to work you
# must change @DJANGO_ROOT@ to be the path to your django
# installation, which is probably something like:
# /usr/lib/python2.6/site-packages/django
Alias /media/ "@DJANGO_ROOT@/contrib/admin/media/"
<Location "/media/">
SetHandler None
</Location>

# The graphite.wsgi file has to be accessible by apache. It won't
# be visible to clients because of the DocumentRoot though.
<Directory /opt/graphite/conf/>
Order deny,allow
Allow from all
</Directory>

</VirtualHost>

红色字体处要修改为对应IP地址或服务器名

vi /etc/httpd/conf.d/wsgi.conf

LoadModule wsgi_module modules/mod_wsgi.so
WSGISocketPrefix /var/run/wsgi

6.启动httpd

service httpd start

可能出现的问题：

httpd启动失败，报错：

(13)Permission denied: httpd: could not open error log file /opt/graphite/storage/log/webapp/error.log.
Unable to open logs

解决办法：

原因是因为系统启动了SELINUX，只要关闭SELINUX就好。

关闭SELINUX
setenforce 0
或
vim /etc/selinux/config
修改
SELINUX=enforcing
改成
SELINUX=disabled

参考：分享Apache 403 error, (13)Permission denied: access to / denied解决办法

7.配置Graphite
cd /opt/graphite/conf/
cp graphite.wsgi.example graphite.wsgi
cp carbon.conf.example carbon.conf
cp storage-schemas.conf.example storage-schemas.conf
vi /opt/graphite/webapp/graphite/settings.py

#Initialize database settings - Old style (pre 1.2)
DATABASE_ENGINE = 'django.db.backends.mysql'# 'postgresql', 'mysql', 'sqlite3' or 'ado_mssql'.
#DATABASE_NAME = ''# Or path to database file if using sqlite3.
#DATABASE_USER = ''# Not used with sqlite3.
#DATABASE_PASSWORD = ''# Not used with sqlite3.
#DATABASE_HOST = ''# Set to empty string for localhost. Not used with sqlite3.
#DATABASE_PORT = ''# Set to empty string for default. Not used with sqlite3.

DATABASES={
'default': {
'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
'NAME': 'test', # Or path to database file if using sqlite3.
'USER': 'graphite', # Not used with sqlite3.
'PASSWORD': '123456', # Not used with sqlite3.
'HOST': '10.92.35.114', # Set to empty string for localhost. Not used with sqlite3.
'PORT': '3306', # Set to empty string for default. Not used with sqlite3.
}
}

红色为修改部分，使用的是mysql数据库。

注：确保上面的数据库已存在，没有则手动创建。

附mysql创建方法

连接数据库 mysql -u root （默认root密码是空）

创建数据库 create database test;

创建用户 CREATE USER 'username'@'host' IDENTIFIED BY 'password'; （host用%表示不限）

授权grant select on 数据库.* to 用户名@登录主机 identified by “密码”

8.初始化数据库
chown -R apache.apache /opt/graphite
python /opt/graphite/webapp/graphite/manage.py syncdb

可能报缺包，缺啥补啥。

9.启动cabon
/opt/graphite/bin/carbon-cache.py start
10.访问graphite-web
http://10.92.1.177

11.向Graphite发送数据
graphite默认接收数据的端口是2003。
/opt/graphite/examples/example-client.py
[root@localhost ~]# /opt/graphite/examples/example-client.py
sending message

--------------------------------------------------------------------------------
system.loadavg_1min 0.03 1397360637
system.loadavg_5min 0.02 1397360637
system.loadavg_15min 0.00 1397360637

对应在浏览器窗口中的显示为在system目录下，loadavg_15min、loadavg_5min、loadavg_1min这三条线就是example-client.py的数据产生的图形。

注意事项：默认显示24小时，因此可能好像没有图形出现。可以点击上图中右箭头选择时间范围。