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Posted to users@httpd.apache.org by Jakov Sosic <ja...@srce.hr> on 2011/12/14 11:08:54 UTC
[users@httpd] Strange entries in error_log
Hi,
I use CentOS 5.x with Apache 2.2., and have came across strange error in
error_log:
tr: write error: Broken pipe
tr: write error
There is no timestamp, it happens periodically with no apparent reason.
I have NameVirtualHost in place, and PHP, so I really don't get it why
is this error logged in general log, and there is nothing in the access_log.
I have no idea why this happens. Any help appreciated!
--
Jakov Sosic
www.srce.unizg.hr
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Re: [users@httpd] Strange entries in error_log
Posted by Igor Galić <i....@brainsware.org>.
----- Original Message -----
> On Wed, Dec 14, 2011 at 10:08 AM, Jakov Sosic <ja...@srce.hr>
> wrote:
> > Hi,
> >
> > I use CentOS 5.x with Apache 2.2., and have came across strange
> > error in
> > error_log:
> >
> > tr: write error: Broken pipe
> > tr: write error
> >
> >
> > There is no timestamp, it happens periodically with no apparent
> > reason.
> > I have NameVirtualHost in place, and PHP, so I really don't get it
> > why
> > is this error logged in general log, and there is nothing in the
> > access_log.
> >
> > I have no idea why this happens. Any help appreciated!
> >
>
> The error log is literally stderr for the apache process. Anything
> run
> in Apache (mod_php) or any process launched by Apache (mod_php
> invoking tr) that prints to stderr will appear in the error log
> without a timestamp, just like that.
>
> So the real question is, what bit of your PHP app is invoking tr.
Or any kind of CGI, for that matter.
But I'm wondering if this couldn't also be caused by a piped log
gone.. very wrong. Anyway, the mod_php/CGI stuff is a good start.
> Cheers
>
> Tom
i
--
Igor Galić
Tel: +43 (0) 664 886 22 883
Mail: i.galic@brainsware.org
URL: http://brainsware.org/
GPG: 6880 4155 74BD FD7C B515 2EA5 4B1D 9E08 A097 C9AE
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Re: [users@httpd] Strange entries in error_log
Posted by Tom Evans <te...@googlemail.com>.
On Wed, Dec 14, 2011 at 10:08 AM, Jakov Sosic <ja...@srce.hr> wrote:
> Hi,
>
> I use CentOS 5.x with Apache 2.2., and have came across strange error in
> error_log:
>
> tr: write error: Broken pipe
> tr: write error
>
>
> There is no timestamp, it happens periodically with no apparent reason.
> I have NameVirtualHost in place, and PHP, so I really don't get it why
> is this error logged in general log, and there is nothing in the access_log.
>
> I have no idea why this happens. Any help appreciated!
>
The error log is literally stderr for the apache process. Anything run
in Apache (mod_php) or any process launched by Apache (mod_php
invoking tr) that prints to stderr will appear in the error log
without a timestamp, just like that.
So the real question is, what bit of your PHP app is invoking tr.
Cheers
Tom
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