Database Reference
In-Depth Information
Another added advantage is framework is completely decoupled and custom imple-
mentations for mapper, reducer, file format, and record reading.
Let's simplify this with the help of a famous word count problem. Here, the pro-
gram needs to output a number of occurrences of each word of the input file (see
Fig-
Figure 5-2
.
How MapReduce works with word count
Figure 5-2
is a graphical representation of the MapReduce program of word count
for three given lines from a Word file.
1.
Welcome to the Cassandra world
2.
Apress book Cassandra made easy
3.
Cassandra 2.0.8 out now
