From: John Wells <lists@...>
Date: 2008-01-02T11:59:51+09:00
Subject: Re: Modifying parent shell's attributes?

On 12/13/07, Austin Ziegler <halostatue@gmail.com> wrote:
> On 12/13/07, John Wells <lists@sourceillustrated.com> wrote:
> > I asked this on the rails list, but received no traction. Since it's
> > more of a ruby question anyway, thought I'd give it a shot here.
> >
> > I have a problem with one of my rake tasks. It loads a very large yaml
> > file into the db, but because of the default limitation on stack size
> > in the Linux shell, the task craps out. Executing "ulimit -s 16384"
> > fixes the issue, and the task completes just fine.
> >
> > What I'd like to do within my task is this (in ruby-ish pseudo):
> >
> > if on_linux?
> >  set_stack_of_running_shell_via_ulimit 16384
> > end
> >
> > Is there any way to do this? Can I modify the attributes of the shell
> > that is running me?
>
> Check out the Process class; specifically getrlimit and setrlimit. It
> won't change the shell, but it will change Ruby.

Following up a bit late on this, but this doesn't solve my problem.
for some reason.

I have tried:

Process.setrlimit Process::RLIMIT_STACK, Process::RLIM_INFINITY,
Process::RLIM_INFINITY
Process.setrlimit Process::RLIMIT_STACK, 0, Process::RLIM_INFINITY

Is this the proper usage? It still craps out with same error, but
setting ulimit in the calling shell to 16000 works just fine.

Thanks!
John