This post builds on my previous posts in the Raspberry Pi Cluster series by changing how the slave sends messages. From now on the slave will send useful information about the system to the master. The master will also be configured to receive messages of many types.
This post builds on my previous posts in the Raspberry Pi Cluster series by changing the format of the data I send. In this tutorial I am now sending data as JSON to allow a richer set of messages to be sent.
This post builds on the third step to create a Raspberry Pi Cluster Node to store our configuration settings in a config file. Here we move all the configuration settings in our script into a useful .cfg file using the python ConfigParser.
I am going to upgrade our previous Raspberry Pi backup script that previously used Secure Copy to one that uses rsync. The primary reason for this is that rsync will only copy new or changed files over. This post goes through the reasons why you might want to use rsync instead of scp when performing a
This post builds on the second step to create a Raspberry Pi Cluster Node to create a hello world application across two different scripts. Here we will create a socket connection between the two and use it to send a message to the master.
Today I will be improving the basic script used to backup my Raspberry Pi’s so that it compresses the files after they have been copied. This will allow me to store several backups instead of having a single copy stored on my computer. This assumes you have followed the first tutorial to create a Raspberry
This post describes how you can upgrade Raspbian Jessie, version 8, to Raspbian Stretch, version 9. Raspbian Stretch was recently released and while they recommend installing from fresh you are able to upgrade the versions. Here I follow the steps of upgrading the Raspberry Pi’s in my cluster including some of the common problems that