* Posts by skies2006

21 posts • joined 21 Apr 2016

Mainframes are hip now! Compuware fires its dev environment into cloud

skies2006

Re: Mainframes ARE slow.

"I/O of a mainframe is superior" that is a myth that was true in the 80'ies and 90'ies then the best you could get was a Intel 286 or 386 machine.

Nothing magic about I/O. I/O is just Input and Output of bits and bytes. There are different kinds of I/O, there is disk I/O, there is network I/O, there is memory I/O, there is ASCII terminal I/O, there is bus I/O.

What kind of I/O is the mainframe superior on I may ask. And where is the open and public benchmarks to prove it.

Kubernetes bug ate my banking app! How code flaw crashed Brit upstart

skies2006

No, pure Kubernetes is ready for production use.

This is a issue with integration of third party tools with Kubernetes, then one has to be very careful and always make sure to research and test that versions are compatible and work together.

One can not just grab any version of Linkerd, Envoy, Istio, Spinnaker, et all and just expect things to work. That is foolish.

Why the Kubernetes Kids can't hurt Bezos' Amazon beast

skies2006

Kubernetes not comparable with OpenStack

I do not agree with the article that Kubernetes competes with AWS. Kubernetes is about containers and AWS is about fat Virtual Machines. Kubernetes in an application that floats on top of AWS or any other IaaS operator.

Kubernetes work very well on top of AWS and it would not surprise me if Amazon offers an Kuberntes-as-a-Service in the future.

Companies are gyrating towards Kubernetes because it enables true hybrid-cloud where work-loads can float freely between cloud operators.

AWS's Kubernetes dilemma: It's a burden and a pleasure

skies2006

Slight misunderstanding from your side I see how it is ment to work.

Developers should not them self set up a Kubernetes cluster. They should consume and use an existing cluster by it's API. It's operations and devops engineers job to run and operate the cluster.

Developers never need to touch any of complex parts that makes it tick, just be consumers of the service.

WebAssembly: Finally something everyone agrees on – websites running C/C++ code

skies2006

Re: Portability??

"How on earth can a binary C/C++ package be portable?"

Look up PNaCl, C/C++ or other lang is compiled into portable bitcode which runs with or without a sandbox. Sadly Chrome and Chromium is the only browsers supporting it currently. This WebAssembly thingie seams similiar except it executes on the JS runtime instead of natively.

https://developer.chrome.com/native-client/nacl-and-pnacl

US reactor breaks fusion record – then runs out of cash and shuts down

skies2006

Why not call Bill Gates or Warren Buffet and have them fork over the cash. 1 billion is peanuts for them.

What do microservices do to data stores? Netflix is built on them and had no idea!

skies2006

Re: Stop the madness

Monolithic applications derive from an age then hardware resources like memory and disk where scarce and networks where slow.

As Dijkstra said "simplicity is prerequisite for reliability" and who in their right mind would deny that?

A load of BS.

Running multiple copies of same service (software function) increases reliability and resilience. In a correctly designed architecture, you can walk around in the datacenter and randomy yank servers, and no one will notice. The application will continue operating.

Being able to upgrade your application while it is running is very valuable. Not only does it increase availability and uptime, but allows one to push out new updates faster.

The concept of Micro Service is nothing new, remember CORBA from the 80/90's? where the designers did envision many small software components communicating with each other over a shared bus.

Linus Torvalds won't apply 'sh*t-for-brains stupid patch'

skies2006

Re: He's right. Again.

Yes, but even this would not work in Linux (given current policies), because the driver API is not so stable even at the source level. This is justified by the need to preserve the freedom to change the kernel implementation.

The API doesn't change that often. There is only four kernel releases in one year. A vendor should be able to output a new driver version within a few weeks after 4.8 is out of Linus hands. As soon as the first Release Candidate is out the API is available for vendors to start working on their driver.

skies2006

Re: He's right. Again.

The Linux driver ABI have never been stable and never will be stable. That is just how it is intended to work. If some companies want to be proprietary, hide stuff and have secrets, it's their choice and their problem.

Drivers should be shipped as source code and built with a compiler at install time. That's how UNIX always have worked. From the beginning it was all source code shipped on tape reels and installing a new system was equal to building everything, the kernel, all binaries and libraries from source code.

Height of stupidity: Heathrow airliner buzzed by drone at 7,000ft

skies2006

Directed EMP pulse or radio jammer that will take care of it. But on the other side one does not want a drone falling from 7000 feet on someones head or property.

DevOps: The spotty faced yoof waiting to blossom

skies2006

As an Ops person I think containerization/Docker is the best thing that happen since sliced bread. With nifty containers that the Dev's are responsible for putting together we move some of the Ops responsibility from us to THEM. We know who to point the finger and blame then a fuck up happens. ;-)

The right time to drink coffee

skies2006

I don't eat breakfast at all, I just have two cups of coffee before lunch. Have been doing this for 15 years now.

Decaf? that is the point with that I wonder, why not drink water then. It is mostly a strange US thing? Decaf coffee is virtually non-existant here in Sweden. Caffeine is not bad, it is GOOD for your body and health in normal doses.

Forget YouTube – meet ChewTube: Strangers watching millennials eat

skies2006

The next is young attractive woman eating.. while NUDE

I'll bet you a dollar we will se that as we have seen gamer girls do on Twitch..

Linux is so grown up, it's ready for marriage with containers

skies2006

Re: Succinct

Ya mate, that is the where the trend is going, towards small and stripped down Linux OS that only got the necessary things to run the containers, networking fabric, storage fabric and the orchestration agents, so there is more RAM and clock cycles over to run actual workloads. See CoreOS and Project Atomic.

Thinking of using multiple clouds? Don't do it, stick with us says AWS CEO

skies2006

Kubernetes and Docker/Rkt makes it much easier to setup and manage. It was much harder to pull off in the old VM centric world due to incompatible formats of both config and images. AWS having it's own format and the need to convert config and images between cloud vendors. Manage the network fabric, etc.

Fedora 24 is here. Go ahead – dive in

skies2006

Left Ubuntu around Fedora version 19, haven't looked back since.

Been running a Kubernetes 1.2 Docker cluster on Fedora 24 Server for a few weeks and it works like a charm, haven't had a single issue with it. Always loved the high quality of Fedora. Thanks RedHat for puting out an other great release!

Your next server will be a box full of connected stuff, not a server

skies2006

Stupid

Sounds like bollox to me. Why would we like to customise hardware? We already partition and customise our servers in software using VM's, containers and SDN.

Servers should just be one big slab of dumb hardware hooked up to equal dumb networking. Preferably 4 CPU-sockets with +200 cores and a gazillion GB's of memory.

Virtuozzo to build full container stack, target the data centre

skies2006

Regarding Virtuozzo/VZ

Do not confuse their solution with app containers . VZ is a system container solution which is a wast different beast than application containers like Docker and Rkt. VZ, LXC and LXD is system container software that run a full OS in container fashion. App containers are for running one or a few single application only.

VZ is a mature and good product. The drawback is that is requires a custom kernel, so one can not install and use vanilla RHEL/CentOS. I would pick LXC/LXD due to this big issue.

Ubuntu 16.04 LTS arrives today complete with forbidden ZFS

skies2006

So this means it can share raw disk volumes with FreeBSD and Solaris? that's nifty. I don't doubt the code quality of ZFS-on-Linux as it was developed at a major US government lab, just like the Lustre filesystem. If it is good for DoD/DoE nuclear research centers, it is good enough for you! ;-)

VMware says users run away screaming after trying OpenStack

skies2006

Maybe true previously. It have gotten a lot easier setting up large scale OpenStack clusters with the with the new reengineering engine (Core v2) in the Liberty release. With Mitaka it is much easier on both the operational side running and deploying the OpenStack cluster across many hardware servers.

But in the long term the containerization datacenter architecture pioneered by Google will eat both VMware and OpenStack alive.

The future belong to Rocket, CoreOS, Kubernettes, LXC/LVXD, Mesos, Dockers, containers-on-bare-iron, etc. Due to one driving thing: money (energy efficiency, hardware efficiency, increased speed in deployment and migration, perform more work with same hardware investment).

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