Show HN: ZFS Implementation in Python

#1

Post by alcari » Sat, May 04, 2019, 4:15 PM UTC

Show HN: ZFS Implementation in Python
github.com

Re: Show HN: ZFS Implementation in Python

#2

Post by lunixbochs » Sat, May 04, 2019, 4:18 PM UTC

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

Re: Show HN: ZFS Implementation in Python

#3

Post by AlexanderDhoore » Sat, May 04, 2019, 4:55 PM UTC

What?! How?! Why?!

This is the greatest thing ever. I wish I could just write code for the fun of it. Every time I wonder whether people will use it and give up before I even get started.

Re: Show HN: ZFS Implementation in Python

#4

Post by josteink » Sat, May 04, 2019, 5:00 PM UTC

lunixbochs wrote: post #2

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

So we port this python to something not slow, and all the kernel-people can shut up about ZFS being terrible ;)

Re: Show HN: ZFS Implementation in Python

#5

Post by newnewpdro » Sat, May 04, 2019, 5:00 PM UTC

lunixbochs wrote: post #2

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

Would the CDDL matter for a python implementation that will never become part of the kernel?

Re: Show HN: ZFS Implementation in Python

#6

Post by j88439h84 » Sat, May 04, 2019, 5:05 PM UTC

josteink wrote: post #4

lunixbochs wrote: post #2

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

So we port this python to something not slow, and all the kernel-people can shut up about ZFS being terrible ;)

Dont forget, pypy is fast.

Re: Show HN: ZFS Implementation in Python

#7

Post by mirceal » Sat, May 04, 2019, 5:15 PM UTC

AlexanderDhoore wrote: post #3

What?! How?! Why?! This is the greatest thing ever. I wish I could just write code for the fun of it. Every time I wonder whether people will use it and give up before I even get started.

why not? writing code can fall into one of a few bucket. one of them is play.

Re: Show HN: ZFS Implementation in Python

#8

Post by dr0verride » Sat, May 04, 2019, 5:19 PM UTC

newnewpdro wrote: post #5

lunixbochs wrote: post #2

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

Would the CDDL matter for a python implementation that will never become part of the kernel?

It's clear to me that the solution is to integrate python into the kernel.

Re: Show HN: ZFS Implementation in Python

#9

Post by ivanbakel » Sat, May 04, 2019, 5:23 PM UTC

Pierre Menard, author of The Filesystem.

But I'm surprised this is possible without a specification - how can you test a filesystem through hexdumps? The effects of some operations are going to pretty far-reaching, surely?

Re: Show HN: ZFS Implementation in Python

#10

Post by CaliforniaKarl » Sat, May 04, 2019, 5:29 PM UTC

newnewpdro wrote: post #5

lunixbochs wrote: post #2

Note: this was implemented without referencing any ZFS source code and should not be subject to the CDDL.

Would the CDDL matter for a python implementation that will never become part of the kernel?

You'd want a reverse-engineering lawyer, so be certain. But my (IANAL) guess is: If this is a proper reverse-engineered implementation, you could then convert _this_ implementation to C, and contribute _that_ into the kernel.

Except, it seems this is BSD-licensed, so I'm not sure how that would work in the kernel (which is GPLv2).