Re: how to debug when server hangs?

Hi,

At Thu, 22 Jan 2004 16:34:30 -0800 (PST),
Alan Bram <[email protected]> wrote:
> Occasionally, as I'm developing new Ruby code in my .rhtml page, the
> server hangs indefinitely when I try to request a page.  I'm sure it's
> because of my own bug, but how can I begin to debug this?
> 
> The only way I know of is to restart the whole Apache server, comment
> out half my new code at a time, and in a kind of binary search,
> eventually figure out what's causing the problem.  And that, of
> course, is only in the case where it's repeatable; sometimes I get a
> Heisen-bug that just shows up once in a while.
> 
> Is there any other way?

You can attach gdb to the apache process that hanged, but it may
be hard to recognize the behaviour of the ruby interpreter.

Shugo