Random perl errors

2001-11-21 Thread Michael Nelson 

I have two web servers carrying a light load that are encountering errors
like the following. They occur randomly but often enough to be a serious
problem. Example #2 in particular seems to repeat itself continuously
until I restart Apache.

I have perused the mod_perl archives and some other places but haven't
seen anything that looks similar. I suspect some kind of memory problem
somewhere but I am out of ideas, short of instrumenting Perl's source
code by hand.

Errors:

1) Not a CODE reference at [blah] line 482. The offending line looks
something like:

   Function (String, String '$self-{Blah}');

2) Undefined subroutine FOO::BAR::BAZ called at file line 74. The code
that invokes FOO::FAR::BAZ looks something like:

   eval use FOO::BAR;
   {FOO::BAR::BAZ} ($parameter);

3) Undefined subroutine amp;main:: called at blib/lib/Net/SSLeay.pm [blah
blah blah...] occurred once on Monday on the one machine that uses
Net::SSLeay.

We are running FreeBSD 4.2, Apache 1.3.22, mod_perl 1.26, and both Perl
5.00503 and Perl 5.6.1. Native libraries used on _both_ servers:

  - DBD::Sybase 0.93 w/ FreeTDS 0.53 to talk to SQL Server
  - XML-Parser-2.29 (though typically only used once when a configuration
module is use'd for the first time).

I would appreciate any ideas people might have on how to nail this.

Thanks,
-mike

Re: Random perl errors

2001-11-21 Thread Stas Bekman 

Michael Nelson wrote:

 I have two web servers carrying a light load that are encountering errors
 like the following. They occur randomly but often enough to be a serious
 problem. Example #2 in particular seems to repeat itself continuously
 until I restart Apache.
 
 I have perused the mod_perl archives and some other places but haven't
 seen anything that looks similar. I suspect some kind of memory problem
 somewhere but I am out of ideas, short of instrumenting Perl's source
 code by hand.
 
 Errors:
 
 1) Not a CODE reference at [blah] line 482. The offending line looks
 something like:
 
Function (String, String '$self-{Blah}');
 
 2) Undefined subroutine FOO::BAR::BAZ called at file line 74. The code
 that invokes FOO::FAR::BAZ looks something like:
 
eval use FOO::BAR;
{FOO::BAR::BAZ} ($parameter);
 
 3) Undefined subroutine amp;main:: called at blib/lib/Net/SSLeay.pm [blah
 blah blah...] occurred once on Monday on the one machine that uses
 Net::SSLeay.
 
 We are running FreeBSD 4.2, Apache 1.3.22, mod_perl 1.26, and both Perl
 5.00503 and Perl 5.6.1. Native libraries used on _both_ servers:
 
   - DBD::Sybase 0.93 w/ FreeTDS 0.53 to talk to SQL Server
   - XML-Parser-2.29 (though typically only used once when a configuration
 module is use'd for the first time).
 
 I would appreciate any ideas people might have on how to nail this.


the short answer test the code under -X,

the long answer in the beginning of this chapter:
http://perl.apache.org/guide/porting.html



_
Stas Bekman JAm_pH  --   Just Another mod_perl Hacker
http://stason.org/  mod_perl Guide   http://perl.apache.org/guide
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