Make SimpleAuthority work with Cassandra 1.1.6 permissions

A few days ago I was about to upgrade Cassandra cluster from 1.1.0 (+ Authentication patch I wrote) to 1.1.6, but – a bit surprisingly – I realized that something is wrong with new Cassandra. I had no problems with creating keyspaces before, as I set proper modify-keyspaces property in, but after the upgrade it stopped to work. After a short investigation I found out that there were some significant changes in Cassandra’s Permission system which broke SimpleAuthenticator. This article is about how to make it work again.

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My first Cassandra contribution

A bit surprisingly and somehow accidentally, today I became a Cassandra contributor. I had a problem with the project I do for work, which made us unable to make our bulkloading script work together with Cassandra authentication (which I described in one of the previous articles on this blog), so we decided to try solving this issue on our own.

The solution was quite simple, but gave me a bit more of Cassandra knowledge and understanding. If you are interested in contributing to Cassandra I think you can take a look at this problem and the solution or even try to reproduce this problem (on Cassandra 1.1.0-rc1 or earlier) and then try to solve it on your own. As I said it was simple, so you won’t get frustrated with the problems you will face, but I think it’s good start for something more. Here is the link to Cassandra’s bug tracker issue:

Working on interesting things, being nicely paid for this and contributing to remarkable Open Source projects in the same time – could it be any better? ;)