Hmm...that's not exactly how Jaques described things to me when he briefed me on Arrow ahead of the announcement.
-----Original Message----- From: Zhe Zhang [mailto:z...@apache.org] Sent: Wednesday, February 24, 2016 2:08 PM To: dev@arrow.apache.org Subject: Re: Question about mutability I don't think one application/process's memory space will be made available to other applications/processes. It's fundamentally hard for processes to share their address spaces. IIUC, with Arrow, when application A shares data with application B, the data is still duplicated in the memory spaces of A and B. It's just that data serialization/deserialization are much faster with Arrow (compared with Protobuf). On Wed, Feb 24, 2016 at 10:40 AM Corey Nolet <cjno...@gmail.com> wrote: > Forgive me if this question seems ill-informed. I just started looking > at Arrow yesterday. I looked around the github a tad. > > Are you expecting the memory space held by one application to be > mutable by that application and made available to all applications > trying to read the memory space? >