cacti

xx-hacker

  Normal
  0
  
  7.8 磅
  0
  2
  
  false
  false
  false
  
   
   
   
   
   
   
   
   
   
   
   
   
  
  MicrosoftInternetExplorer4



/* Style Definitions */
table.MsoNormalTable
        {mso-style-name:普通表格;
        mso-tstyle-rowband-size:0;
        mso-tstyle-colband-size:0;
        mso-style-noshow:yes;
        mso-style-parent:"";
        mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
        mso-para-margin:0cm;
        mso-para-margin-bottom:.0001pt;
        mso-pagination:widow-orphan;
        font-size:10.0pt;
        font-family:"Times New Roman";
        mso-fareast-font-family:"Times New Roman";
        mso-ansi-language:#0400;
        mso-fareast-language:#0400;
        mso-bidi-language:#0400;}


  

What is Cacti?
Cacti is a complete frontend to RRDTool, it stores all of
the necessary information to create graphs and populate them with data in a
MySQL database. The frontend is completely PHP driven. Along with being able to
maintain Graphs, Data Sources, and Round Robin Archives in a database, cacti
handles the data gathering. There is also SNMP support for those used to
creating traffic graphs with MRTG.
Data Sources
To handle data gathering, you can feed cacti the paths to any external
script/command along with any data that the user will need to "fill
in", cacti will then gather this data in a cron-job and populate a MySQL
database/the round robin archives.
Data Sources can also be created, which correspond to
actual data on the graph. For instance, if a user would want to graph the ping
times to a host, you could create a data source utilizing a script that pings a
host and returns it's value in milliseconds. After defining options for RRDTool
such as how to store the data you will be able to define any additional
information that the data input source requires, such as a host to ping in this
case. Once a data source is created, it is automatically maintained at 5 minute
intervals.
Graphs
Once one or more data sources are defined, an RRDTool graph can be created
using the data. Cacti allows you to create almost any imaginable RRDTool graph
using all of the standard RRDTool graph types and consolidation functions. A
color selection area and automatic text padding function also aid in the
creation of graphs to make the process easier.
Not only can you create RRDTool based graphs in cacti, but
there are many ways to display them. Along with a standard "list
view" and a "preview mode", which resembles the RRDTool frontend
14all, there is a "tree view", which allows you to put graphs onto a
hierarchical tree for organizational purposes.
User Management
Due to the many functions of cacti, a user based management tool is built in so
you can add users and give them rights to certain areas of cacti. This would allow
someone to create some users that can change graph parameters, while others can
only view graphs. Each user also maintains their own settings when it comes to
viewing graphs.
Templating
Lastly, cacti is able to scale to a large number of data sources and graphs
through the use of templates. This allows the creation of a single graph or
data source template which defines any graph or data source associated with it.
Host templates enable you to define the capabilities of a host so cacti can
poll it for information upon the addition of a new host.

               
               
               

本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/13319/showart_730846.html