Table 1.

Cluster details.

Namenode	CPU: Core i7@3 GHz Memory: 8 GB SSD: 750 GB OS: Fedora
Datanodes	CPU: Core i7@3.8 GHz Memory: 32 GB SSD: 250 GB OS: Fedora
Network bandwidth	1 Gbps
Hadoop version	2.3.0, 32 bits