[erlang-questions] best way to do live code update

beepblip@REDACTED beepblip@REDACTED
Wed Jul 11 09:13:19 CEST 2007

Possibly. Is that the only way to go... is OTP the answer
or is there another paradigm/behaviour/pattern that works
for these situations. Hot code loading is one of the reasons
I like Erlang and quite often my processes crash because
of dependencies on the old code.

On 7/9/07, jm <jeffm@REDACTED> wrote:
> beepblip@REDACTED wrote:
> > hi,
> >
> > what is the best way to do design a system for live code update?
> > in theory, i would like to ship a tar/bundle/etc with all the necessary
> > code. the end user should be able to load that while the system
> > is running and then proceed as thogh nothing much has changed.
> >
> > this should be similar to a live code update that was done on the
> > network gear that erlang ran on.
> >
> > how does one structure their project to accomplish this?
> If you don't mind the blind leading the blind...There's a section in
> "OTP Design Principles" (
> http://www.erlang.org/doc/pdf/design_principles.pdf ) that covers
> releases starts around page 46.
> http://www.trapexit.org/index.php/Building_An_OTP_Application also has a
> section on releases. I've done niether myself though. Is this what your
> referring to or some finer point I've missed?
> Jeff.
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