See https://www.apache.org/legal/resolved.html#weak-copyleft-licenses
Reuse is permitted in binary form only but MPL 2.0 is incompatible for reuse or derivative works in source form. This means to use any of such code as a starting point for new source code development in Apache Arrow is not possible. On Mon, Feb 17, 2020 at 8:02 AM Raúl Bocanegra Algarra <[email protected]> wrote: > > Hi Wes, > > As far as we understand it we use MPL2 because you can use it privately for > your projects, but if you modify it you must contribute to our library, > keeping the rest of your project private. I wonder what kind of situation > could you find that prevents you from using the library in any Apache > projects. > > Raúl Bocanegra Algarra. C++ Software Engineer. > > ________________________________ > De: Wes McKinney <[email protected]> > Enviado: jueves, 13 de febrero de 2020 22:41 > Para: [email protected] > Cc: Raúl Bocanegra Algarra > Asunto: Re: Arrow & Time series analytics > > Raúl -- it's an aside, but could you comment on your choice of the MPL > 2.0 license? It puts you in an odd no-man's land between GPL and > permissive licenses, neither satisfying GPL proponents nor allowing > reuse in Apache 2.0 projects. > > Thanks > > On Thu, Feb 13, 2020 at 10:27 AM Simon Dumke <[email protected]> wrote: > > > > Thanks Joris, Wes and Raul for the feedback. I'm still working on > > convincing other people in our organisation that we would benefit from > > integrating artow into our systems and gradually replacing differen > > proprietary, internal data structures ;-) > > > > The Khiva project sounds like a good starting point for integrating time > > series analytics into the arrow-verse™, although i can not measure from > > some shallow looks into the code, whether or how much thosealgorithms are > > working on arrow structures. I'll keep an eye on it. > > > > Great thanks and kind regards, > > Simon > > > > Am 7. Februar 2020 13:07:06 schrieb Raúl Bocanegra Algarra > > <[email protected]>: > >> > >> Hi Simon, > >> > >> I am actually working in a Time Series data analytics platform using > >> Apache Arrow called Shapelets. > >> We have an open-source library called Khiva which is a collection of > >> algorithms optimized for GPU-CPU for time-series analysis. > >> Currently we use Arrow to share in memory time series between different > >> processes. > >> You can DM for more information. > >> > >> Thanks, > >> > >> Raúl Bocanegra Algarra > >> > >> Software Engineer > >> > >> M: + 34 617 83 64 45 - E: [email protected] > >> > >> > >> ________________________________ > >> From: Simon Dumke <[email protected]> > >> Sent: Tuesday, February 4, 2020 12:58 PM > >> To: [email protected] <[email protected]> > >> Subject: Arrow & Time series analytics > >> > >> Hi all, > >> > >> I have not yet found anything in that regard - hence my asking here: > >> > >> Do you know of any application of, any library about, architecture > >> around... Apache Arrow for time series data analytics? > >> > >> Thanks a lot for the great work! > >> Simon > >> > >> > > >
