Hannibal is a tool to help monitor and maintain HBase-Clusters that are configured for manual splitting.
While HBase provides metrics to monitor overall cluster health via JMX or Ganglia, it lacks the ability to monitor single regions in an easy way. This information is essential when your cluster is configured for manual splits, especially when the data growth is not uniform.
This tool tries to fill that gap by answering the following questions:
How well are regions balanced over the cluster?
How well are the regions split for each table?
How do regions evolve over time?
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