If you are seeing periodic network spikes you might want to check the compactionQueues to see if major compactions are happening.

See ??? for more information on managing compactions.

HBase expects the loopback IP Address to be 127.0.0.1. See the Getting Started section on ???.

Are all the network interfaces functioning correctly? Are you sure? See the Troubleshooting Case Study in Section 1.14, “Case Studies”.