Using OCI Burstable Instance

With the work that I’ve been doing with Open Street Map (here), I’ve been provisioning Pelias (here) – an open-source implementation of geocoding. This architecture is not small (consisting of 10+ docker images, and potentially 100+GB of raw geo data) especially if you are looking to geocode the whole world. The workload (or pipeline) had 4 main stages – download, prepare, import and query.

  • Download – to get the raw data sources
  • Prepare – to get the raw data into a format that can be easily imported
  • Import – to import the data into the elastic search (which is the backend)
  • Query – to accept geocode queries

Each of these stages have different performance characteristics and required different resources. The main thing that I’m looking at here is the use of compute. The need for compute during the prepare and import stages is significantly different from the download and query stages. I’m also not confidently in terms of when or how much I need.

And this is why I configured a burstable instance.

Here’s a couple of things to know …

  • There is a baseline utilisation OCPU. Consider this as a the minimum compute you want. For my scenario, it was primarily how much compute that I needed for the download and query stages.
  • There is full utilisation OCPU. Where this is can be 2x or 8x the baseline utilisation. (in the terms of the documentation – the baseline utilisation can be either 12.5% or 50% of the full utilisation OCPU). For my scenario, it was primarily the prepare and import stages that needed the additional compute.
  • The increased capacity is based upon the CPU utilisation metrics to determine whether to burst.
  • The average CPU utilisation for the month needs to up to the baseline utilisation OCPU.

Burstable Instances billing is known. It doesn’t come with Bill Shock.

You can find out more about Oracle Cloud Infrastructure burstable instances (here). If you want to try this out yourself or work on your own application, sign-up (here) for the free Oracle Cloud Trial. I’d be interested to hear your experiences and learn from others as well. Leave a comment or contact me at jason.lowe@oracle.com if you want to collaborate.

Author: Jason Lowe

I am passionate about how organisations adopt IT quickly and sustainably to achieve a specific and measurable outcome. This thinking is supported through lean IT practices in operational support and project delivery, and adopting these practices with Oracle technologies by creating sustainable platforms. I'm also interested different perspectives and drivers - from enterprise to start-ups, academia to commercial to public sector, cost-sensitive (risk) to value-driven (reward) - all of which influences decisions that organisations make. I have a passion for community and have been called "a connector" - meeting new people that are trying to solve valuable and hard problems and connecting them with others that can validate and help realise their full potential. I've supported different organisations like TADHack and Hacking Health as a global organiser. I'm is a persistent blogger on medium.com and redthunder.blog and on LinkedIn - https://www.linkedin.com/in/lowe-jason #CommunityMatters #ItTakesAVillage

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