Look Ma, no OS • Hacker News Board

Re: Look Ma, no OS

#31

Post by MCRed » Wed, May 06, 2015, 2:13 AM UTC

bcl wrote: post #27

Russell Pavlicek had a pretty good high level talk on Unikernels at Linuxfest Northwest this year - http://linuxfestnorthwest.org/2015/sessions/next-generation-...

Excellent abstract, but unable to view slides on a Mac. (ODP format not supported by keynote?)

Re: Look Ma, no OS

#32

Post by FraaJad » Wed, May 06, 2015, 2:14 AM UTC

MCRed wrote: post #31

bcl wrote: post #27

Russell Pavlicek had a pretty good high level talk on Unikernels at Linuxfest Northwest this year - http://linuxfestnorthwest.org/2015/sessions/next-generation-...

Excellent abstract, but unable to view slides on a Mac. (ODP format not supported by keynote?)

LibreOffice.

Edit: you should be able to import it into your google drive, and view it there if you do not wish to install libreoffice.

Re: Look Ma, no OS

#33

Post by MCRed » Wed, May 06, 2015, 2:15 AM UTC

zalmoxes wrote: post #30

MCRed wrote: post #22

I have to say, this is one of the most exciting technologies I've seen in awhile. It predates docker by a fair bit, and I would have hoped it would have gotten more traction. So I'm very happy to see slides from a user group. Alas, the brilliance of Erlang has not been sufficiently appreciated, so hopefully Elixir -- aka: Erlang Returns -- might catch on and become a popular hipster language. With Docker you still ha…

> and then on top of that more and more infrastructure is being built. I don't see how unikernels solve orchestration. You still need databases, load balancing, service discovery and so on. Kubernetes or something like it would still be a necessity.

Good point. My feeling isn't so much that it exists, but that it's all new and dockery-- and doesn't feel like it's gelled into something really useable yet. And by usable, I mean "usable for non-ops people". I'm hoping managing hypervisors will be more of a solved problem given more time in the market... but I may well be wrong.

Re: Look Ma, no OS

#34

Post by jacques_chester » Wed, May 06, 2015, 2:15 AM UTC

frou_dh wrote: post #26

jacques_chester wrote: post #21

Earlier quoted context omitted.

This is "Why is the bike shed missing three walls and half the roof?"ing.

Chapters bother you that much huh?

Not when they're arranged as a book, rather than a quilt disguised as a book.

Re: Look Ma, no OS

#35

Post by digi_owl » Wed, May 06, 2015, 2:17 AM UTC

stonogo wrote: post #7

The next logical step is to elide the virtualized network and disk interfaces, and then we're back to shared hosting! See you again in twenty years.

I can't seem to shake the first thought i had when reading about unikernels. That they are DOS in a VM.

Maybe it is overly simplified, but as i understand it we are looking at a "kernel" stripped down to handling the disk and network interfaces provided by the VM. No user separation (there is only a single "user"), no memory protection (it is only running a single process as best i can tell), and resource provisioning is done by the VM.

Re: Look Ma, no OS

#36

Post by yjh0502 » Wed, May 06, 2015, 2:37 AM UTC

I'm not sure Erlang with a immutable infrastructure concept is good idea. Dynamic code reloading and upgrading without downtime is a key feature of Erlang, and immutable infrastructure do not play well with these features. If you make Erlang immutable, you should add another layer to ensure availability like HAProxy, which adds management burden. If you use dynamic code reloading, it is no longer 'immutable'.

Re: Look Ma, no OS

#37

Post by phrasz » Wed, May 06, 2015, 2:44 AM UTC

Is it me or is the wrong word being used (0.o)? See -- http://en.wikipedia.org/wiki/Microkernel

Re: Look Ma, no OS

#38

Post by ossreality » Wed, May 06, 2015, 2:52 AM UTC

MCRed wrote: post #22

I have to say, this is one of the most exciting technologies I've seen in awhile. It predates docker by a fair bit, and I would have hoped it would have gotten more traction. So I'm very happy to see slides from a user group. Alas, the brilliance of Erlang has not been sufficiently appreciated, so hopefully Elixir -- aka: Erlang Returns -- might catch on and become a popular hipster language. With Docker you still ha…

>With Docker you still have all the overhead of Linux, and personally, I'm finding it a bit overwrought

You have an app whose bottleneck is the underlying OS? Or you just don't know how to UNIX sysop? Kubernetes sounds like the ticket for you if you're using Docker.

Re: Look Ma, no OS

#39

Post by zefei » Wed, May 06, 2015, 2:57 AM UTC

phrasz wrote: post #37

Is it me or is the wrong word being used (0.o)? See -- http://en.wikipedia.org/wiki/Microkernel

It is you. See https://queue.acm.org/detail.cfm?id=2566628

Re: Look Ma, no OS

#40

Post by kungfooguru » Wed, May 06, 2015, 3:04 AM UTC

yjh0502 wrote: post #36

I'm not sure Erlang with a immutable infrastructure concept is good idea. Dynamic code reloading and upgrading without downtime is a key feature of Erlang, and immutable infrastructure do not play well with these features. If you make Erlang immutable, you should add another layer to ensure availability like HAProxy, which adds management burden. If you use dynamic code reloading, it is no longer 'immutable'.

My thoughts as well. And if you one does accept the restrictions I'd hope they remove the performance penalties associated with binding everything so late so it can be swapped.