1

I was surveying middleware to build a home automation, and I came across Kaa.

I noticed that one of Kaa supported NoSQL database option is Cassandra, and I would like to understand more about its deployment scenario in cluster mode.

  1. I followed the installation guide on official link to build a standalone Kaa node with a Cassandra installed on the same node. However, my question would be that is there a way to have a external Cassandra cluster served as a separate storage node? I do not see there is an option in etc configuration file.
  2. What is the default RF for storing large amount of endpoints, and what is the CL for read / write operation if using Cassandra as storage engine.

Thanks.

mcfongtw
  • 217
  • 2
  • 13

1 Answers1

0

  1. You can configure Cassandra cluster on separate nodes, use new Cluster-setup documentation for details.

  2. RF and CL value you can choose based on Cassandra documentation. For example Data distribution and replication.

Oleksandr
  • 449
  • 3
  • 7
  • 1
    Got it! Seems all those parameter is configurable in /etc/kaa-node/conf/common-dao-cassandra.properties, as specified in the doc you provided above. Thanks! – mcfongtw Jan 04 '17 at 02:27