[erlang-questions] WTF?

Mike Oxford moxford@REDACTED
Wed Jul 6 02:52:34 CEST 2011

erl running inside of a backgrounded emacs in the original directory
seems to have been the culprit.
Killed it off, nuked the directory, used the merged backup with the
rebuilt-nodes and things are good again.

If two things are going to kill Erlang's uptake it's not going to be
the syntax, the performance, the functional-way-of-thinking... it'll
be the terrible error messages and the arcane build/packaging, both of
which make Erlang feel like a house of cards you can't even look at
wrong and, thus, give no confidence in actually running it in
production.  (Not to mention just plain annoying devs to the point
they walk away from it, which is what kills more languages over time
than anything else.)

Party on...


On Tue, Jul 5, 2011 at 5:09 PM, Mike Oxford <moxford@REDACTED> wrote:
> Application tree was working...has been for weeks.
> Ran rebar and it crashed, shit all over my nodes (again.)  No problem,
> been there done that, fix it up...
> Now when I run it (after rebar's generate) it gives me the "undef
> start/2" error.
> Spend hours trying to figure out everything from how my lib_dirs got
> changed, env, everything, full cleans, everything.
> Pull a backup ... it works.
> Hand merge all new changes... works, runs fine.
> Nuke the directory and copy the backup into the directory....undef start/2.
> Copy the entire tree to another directory ... runs fine.
> What/where/WTF has been corrupted that running it from a specific
> directory would cause issues?
> /opt/name/proj <-- undef start/2, used to work
> /opt/name/wtf/proj <-- works
> My lib_dirs have not changed, binary cp -r between the two directories
> so they're identical.
> Rebar may have caused it, but now that it's in this completely f'd up
> state I need to figure out how to get it OUT of this state, since
> rebar's just a packaging system in front of erlexec.
> So ... two identical directory structures, one works and one does not.
> Again, it's been working for weeks .. this is not a fundamental issue
> but more "state."
> I have -not- rebooted.  I want to understand this fully before I push
> in into production.
> Anyone know of a good place to start digging?
> TIA.
> -mox

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