If you are seeing periodic network spikes you might want to check the
compactionQueues to see if major
compactions are happening.
See Section 18.104.22.168, “Managed Compactions” for more information on managing compactions.
HBase expects the loopback IP Address to be 127.0.0.1. See the Getting Started section on Section 22.214.171.124, “Loopback IP”.
Are all the network interfaces functioning correctly? Are you sure? See the Troubleshooting Case Study in Section 13.15, “Case Studies”.