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I have a graph with a plotted line showing the count sum each hour, however this plotted line has some gaps. See this screengrab, near 07/29:
Does anyone know why? If it means zero, then why doesn't the line continue to the X-axis?
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Use the CloudWatch console to graph metric data generated by other AWS services. This makes it more efficient to see the metric activity on your services. The following procedures describe how to graph metrics in CloudWatch.
Open the CloudWatch console. Select Metrics. Select EBS, and then select Per volume metrics. Select the metrics you want to graph. Select Average from the Statistic drop-down menu. Select the period of time you want to view from the Period drop down menu.
For example, EC2 metrics are stored in the “AWS/EC2” namespace, RDS metrics are stored in the “AWS/RDS” namespace, and so forth. Browsing metrics on the CloudWatch console is very easy. You need to first log in to the AWS console and navigate to the CloudWatch service.
A metric represents a time-ordered set of data points that are published to CloudWatch. Think of a metric as a variable to monitor, and the data points as representing the values of that variable over time.
All CloudWatch knows is that it didn't receive any data for that metric during that time period. It doesn't know if it was due to a failure in the data reporting or something else. So it shows that as a gap.
You would have to have something actually sending a value of "0" during reporting periods where there is no activity for that metric, in order fill in the gaps. That's usually more trouble than it's worth.
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