20 Matching Annotations
  1. Last 7 days
    1. To me, abandoning all these live upgrades to have only k8s is like someone is asking me to just get rid of all error and exceptions handling and reboot the computer each time a small thing goes wrong.

      the Function-as-a-Service offering often have multiple fine-grained updateable code modules (functions) running within the same vm, which comes pretty close to the Erlang model.

      then add service mesh, which in some cases can do automatic retry at the network layer, and you start to recoup some of the supervisor tree advantages a little more.

      really fun article though, talking about the digital matter that is code & how we handle it. great reminder that there's much to explore. and some really great works we could be looking to.

  2. Jul 2020
  3. May 2020
  4. Jan 2020
  5. Mar 2019
    1. Pipeline de CI/CD no Kubernetes usando Jenkins e Spinnaker

      Uau! Muitos assuntos da prova LPI DevOps são explorados nessa palestra. Fica de olho no tópico: 702 Container Management.

  6. Jan 2019
  7. Oct 2018
  8. Sep 2018
  9. Jul 2018
  10. Sep 2017
    1. Singularity containers can be used to package entire scientific workflows, software and libraries, and even data.

      Very interesting, basically Singularity allows containers to run in HPC environments, so that code running in the container can take advantage of the HPC tools, like massive scale and message passing, while at the same time keeping the stuff in the container safer.

  11. Apr 2016
  12. Jan 2014
    1. Difference between XZ and LZMA2 Short answer: xz is a format that (currently) only uses the lzma2 compression algorithm. Long answer: think of xz as a container for the compression data generated by the lzma2 algorithm. We also have this paradigm for video files for example: avi/mkv/mov/mp4/ogv are containers, and xvid/x264/theora are compression algorithms. The confusion is often made because currently, the xz format only supports the lzma2 algorithm (and it’ll remain the default, even if some day, others algorithms may be added). This confusion doesn’t happen with other formats/algorithms, as for example gzip is both a compression algorithm and a format. To be exact, the gzip format only supports to encapsulate data generated by gzip… the compression algorithm. In this article I’ll use “xz” to say “the lzma2 algorithm whose data is being encapsulated by the xz format”. You’ll probably agree it’s way simpler

      The key here is the notion of a format as a container. Lots of content is moving towards that notion-- that a "file" is really an opaque (to the OS filesystem) directory or container of some sort and some other program understands the format of the "file" as a container to know how to open it to access the files inside.