Database Reference
In-Depth Information
Ganglia
License
BSD
Activity
Medium
Purpose
Monitoring
Official Page
Hadoop Integration API Compatible
Ganglia is a distributed monitoring system specifically designed to work with clusters and
grids consisting of many machines. It allows you to quickly visualize how your systems are
being used and can be a useful tool for keeping track of the general welfare of your cluster.
Ganglia is best used to understand how your system is behaving at a very broad but very
shallow level. Folks who are looking to debug or optimize specific analytics would be better
served to look at other tools that are geared toward providing much deeper information at a
much narrower scope, such as White Elephant.
By default, Ganglia is capable of providing information about much of the inner workings of
your system right out of the box. This includes a number of data points describing such
things as how much of your total computing capability is being used, how much data is mov-
ing through your network, and how your persistent storage is being utilized. Users with addi-
tional needs can also extend Ganglia to capture and display more information, such as
application-specific metrics, through the use of plug-ins. Hadoop is packaged with a set of
plug-ins for reporting information about HDFS and MapReduce to Ganglia (see the
Ganglia
Metrics
project for more information).
