Database Reference
In-Depth Information
grows to terabytes. With Cassandra, you may set up a configuration that makes it really
hard to lose data. For example, a setup with three data centers in Virginia (US East), Cali-
fornia (US West), and Tokyo (Japan), where data is replicated across all the three data
centers, you will seldom need to worry about data. If you are nervous, you may have a
cron job backing up the data from one of the data centers, at every time interval up to
which you may take a risk. With this setup, in the rare event of the two US data centers
going down, you can serve the users without any repercussions. Things will catch up as
soon as the data centers come back up.
