Monitoring DynamoDB tables

To start with, let's get familiar with AWS CloudWatch, which is a network-monitoring service offered by Amazon Web Service. While creating a table, you can set alarms for various events such as provisioning a throughput with exceeded exceptions, maintaining certain threshold, and so on. A table's size in terms of bytes or number of items is not available as a CloudWatch metric by default; however, this can be set up using the DescribeTable operation, and it is a good practice to keep watch on this metric. These metrics are very important from the database admin's point of view, but as we are using a hosted service here, we need not hire a DBA specialist. These metrics would help us keep track of whether there is any sudden demand of resources happening or not, and if the peak and slow time frames can be drawn for our application so that we can keep more read and write throughput for peak time frames and lesser throughput for slow time frames. CloudWatch gives us...