Monthly Archives: August 2014

Plotting a counting process in an IPython notebook

There are lots of interesting timeseries data in software systems: events that occur over time such as numbers of users signed up, or errors of a certain type. I like visualizing these as a counting process, which is a cumulative count of the … Continue reading

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Start stopped instances that all have the same name

It’s worth learning the AWS CLI and jq in order to do one-off batch operations to EC2 instances. I needed to start a group of stopped instances that all had the same name. Here’s the one-liner: aws ec2 describe-instances –filters \ Name=tag:Name,Values=”name goes here” | … Continue reading

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