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From: Ashley Sheridan on 13 Jul 2010 16:26
On Tue, 2010-07-13 at 14:22 -0600, Larry Martell wrote:

> On Tue, Jul 13, 2010 at 11:11 AM, Ashley Sheridan
> <ash(a)ashleysheridan.co.uk> wrote:
> >
> > On Tue, 2010-07-13 at 11:06 -0600, Larry Martell wrote:
> >
> > I have an app that runs just fine on an older Solaris apache server
> > (Apache/2.0.53 PHP/5.0.4), but when I run the same app on a newer
> > Linux server (Apache/2.2.3-11 PHP/5.2.8) against the same database on
> > the same mysql server, it fails with "Allowed memory size exhausted".
> > This occurs on a:
> >
> > $result = mysql_query($query, $db)
> >
> > statement. Both servers are running the identical query, which returns
> > a result set under 0.5M. The Solaris server is configured with
> > memory_limit = 8M in php.ini, and the Linux one with 32M, so clearly
> > something other then what I'm seeing is going on. Anyone know what
> > could be causing this? Any php or apache build or config options that
> > I could look at?
> >
> > TIA!
> >
> >
> > Is there any other place which your code is changing the memory_limit parameter? I would assume this is unlikely, but sometimes even the unlikely happens more than than it should!
>
> The error message actually says "Allowed memory size of 3355432 bytes
> exhausted" so I know it's using the 32M that it's set to php.ini. But
> as I wrote above, on the Solaris server where it works, the
> memory_limit is set to 8M.
>
> > Can you maybe strip the code down to a test case which causes the error?
>
> I've already done that - all it does it run a query and display the results.
>
> > Lastly, I do notice that you've got two different versions of PHP & Apache installed on each OS, which could be the reason for the failure.
>
> Well, yes, that's what I said. And they may been built with different
> config options. But what options could cause a difference like this?
>
> > Maybe set up a VM or two to test things out. Have one VM with Solaris and Apache/2.2.3-11 & PHP/5.2.8, and another VM with Apache/2.0.53 & PHP/5.0.4 and see what happens. It could be that it's either Apache or PHP or both
> > causing the problems on your Linux system.
>
> I don't have control of that. This is at a client site - they want to
> get rid of their existing older Solaris apache server and move to a
> newer Linux one. The servers are already set up they way they are. I
> asked the admis for info on the build - they have it for the newer
> Linux one, but not for the older Solaris one. They did give me another
> machine to test on - that one is Linux, Apache 2.2.3, PHP 5.2.6 - that
> also gets the out of memory error.
>


That's why I suggested a VM, as you can have as many of these set up as
you need on your own computer to test things.

Thanks,
Ash
http://www.ashleysheridan.co.uk


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