Tool to visualise block distribution on Hadoop (HDFS) cluster

Distributed systems always bring new challenges for administrators and users. This is the case with HDFS, the default distributed file system that Hadoop uses for storing data.

In order to face these challenges, tools to facilitate administration and usage of these systems are developed. At CERN, a Hadoop service is provided and we have developed and deployed on our clusters some tools, today we present one of these tools.