[26927] in Perl-Users-Digest
Perl-Users Digest, Issue: 8899 Volume: 10
daemon@ATHENA.MIT.EDU (Perl-Users Digest)
Sun Jan 29 21:05:23 2006
Date: Sun, 29 Jan 2006 18:05:06 -0800 (PST)
From: Perl-Users Digest <Perl-Users-Request@ruby.OCE.ORST.EDU>
To: Perl-Users@ruby.OCE.ORST.EDU (Perl-Users Digest)
Perl-Users Digest Sun, 29 Jan 2006 Volume: 10 Number: 8899
Today's topics:
Problem with search.cpan.org grep tool <jkeen_via_google@yahoo.com>
Re: Problem with search.cpan.org grep tool <jkeen_via_google@yahoo.com>
Re: When were @- and @+ added <sisyphus1@nomail.afraid.org>
Re: When were @- and @+ added <rvtol+news@isolution.nl>
Re: When were @- and @+ added <1usa@llenroc.ude.invalid>
Re: When were @- and @+ added <sisyphus1@nomail.afraid.org>
Re: When were @- and @+ added <sisyphus1@nomail.afraid.org>
Re: When were @- and @+ added <1usa@llenroc.ude.invalid>
Re: When were @- and @+ added <sisyphus1@nomail.afraid.org>
Re: When were @- and @+ added <rvtol+news@isolution.nl>
Digest Administrivia (Last modified: 6 Apr 01) (Perl-Users-Digest Admin)
----------------------------------------------------------------------
Date: Mon, 30 Jan 2006 00:02:05 GMT
From: James E Keenan <jkeen_via_google@yahoo.com>
Subject: Problem with search.cpan.org grep tool
Message-Id: <1IcDf.838$OY4.514@trndny02>
I am encountering a problem using search.cpan.org's grep tool tonight to
locate strings which I know to be found within particular distributions.
Example 1: I go to http://search.cpan.org/tools/CPAN-1.83 and grep for
'CPAN'. Result:
### BEGIN ERROR MESSAGE ###
ERROR
The requested URL could not be retrieved
While trying to retrieve the URL:
http://search.cpan.org:9290/grep?release=CPAN-1.83&string=CPAN&i=1&n=1
The following error was encountered:
* Zero Sized Reply
Squid did not receive any data for this request.
### END ERROR MESSAGE ###
The string 'CPAN' obviously must be found somewhere within that
distribution.
Example 2: I go to
http://search.cpan.org/grep?release=List-Compare-0.32&string=List&i=1&n=1
and grep for 'list'. I know that string exists in that module, because
I wrote it! Result:
### BEGIN ERROR MESSAGE ###
ERROR
The requested URL could not be retrieved
While trying to retrieve the URL:
http://search.cpan.org:9290/grep?release=List-Compare-0.32&string=List&i=1&n=1
The following error was encountered:
* Zero Sized Reply
Squid did not receive any data for this request.
### END ERROR MESSAGE ###
Googling for "Zero Sized Reply" suggests that this is a server-side
problem with Squid. Are other people experiencing this? Thanks.
Jim Keenan
------------------------------
Date: Mon, 30 Jan 2006 00:08:39 GMT
From: James E Keenan <jkeen_via_google@yahoo.com>
Subject: Re: Problem with search.cpan.org grep tool
Message-Id: <43DD5908.1030300@yahoo.com>
James E Keenan wrote:
> I am encountering a problem using search.cpan.org's grep tool tonight to
> locate strings which I know to be found within particular distributions.
>
>
> The following error was encountered:
>
> * Zero Sized Reply
>
> Squid did not receive any data for this request.
> ### END ERROR MESSAGE ###
>
Here's an excerpt from Squid's FAQ
(http://www.squid-cache.org/Doc/FAQ/FAQ_long.html):
11.51 Why do I sometimes get ``Zero Sized Reply''?
This happens when Squid makes a TCP connection to an origin server, but
for some reason, the connection is closed before Squid reads any data.
Depending on various factors, Squid may be able to retry the request
again. If you see the ``Zero Sized Reply'' error message, it means that
Squid was unable to retry, or that all retry attempts also failed.
What causes a connection to close prematurely? It could be a number of
things, including:
1 An overloaded origin server.
2 TCP implementation/interoperability bugs. See the System-Dependent
Weirdnesses section for details.
3 Race conditions with HTTP persistent connections.
4 Buggy or misconfigured NAT boxes, firewalls, and load-balancers.
5 Denial of service attacks.
6 Utilizing TCP blackholing on FreeBSD.
You may be able to use tcpdump to track down and observe the problem.
Jim Keenan
------------------------------
Date: Mon, 30 Jan 2006 10:07:24 +1100
From: "Sisyphus" <sisyphus1@nomail.afraid.org>
Subject: Re: When were @- and @+ added
Message-Id: <43dd4b3b$0$21414$afc38c87@news.optusnet.com.au>
"A. Sinan Unur" <1usa@llenroc.ude.invalid> wrote in message
news:Xns975A62FF45729asu1cornelledu@127.0.0.1...
> "Sisyphus" <sisyphus1@nomail.afraid.org> wrote in
> news:43dc85d3$0$5922$afc38c87@news.optusnet.com.au:
>
> > ActiveState's build 815 seems immune to the problem.
> > However, their build 810 (perl 5.8.4) *does* suffer this strange
> > affliction, as does my MinGW-built perl 5.8.7, and my VC++7.0-built
> > perl 5.8.7. I'll wait and see what perl 5.8.8 brings.
>
> Are these all on the same machine?
>
Yes - on the same Windows 2000 box.
I'm wondering whether build 815 incorporates a patch that addresses this
isuue. With ActiveState perl, 'perl -V' lists the patches that have been
applied, but I can't see anything listed there (see below) that looks like
it might have fixed this particular problem. Of course, the fix might have
been applied in build 814 or 813 ... but I don't know how to find out which
patches were applied to those builds (unless I actually install those 2
builds and run 'perl -V' :-)
I'll make some further enquiries on the perl-win32-users list hosted by
ActiveState. Someone there might be able to point me to more definitive
information.
Here are the patches listed for build 815:
Locally applied patches:
ActivePerl Build 815 [211909]
Iin_load_module moved for compatibility with build 806
PerlEx support in CGI::Carp
Less verbose ExtUtils::Install and Pod::Find
instmodsh upgraded from ExtUtils-MakeMaker-6.25
Patch for CAN-2005-0448 from Debian with modifications
Upgrade to Time-HiRes-1.76
25774 Keys of %INC always use forward slashes
25747 Accidental interpolation of $@ in Pod::Html
25362 File::Path::mkpath resets errno
25181 Incorrect (X)HTML generated by Pod::Html
24999 Avoid redefinition warning for MinGW
24699 ICMP_UNREACHABLE handling in Net::Ping
21540 Fix backward-compatibility issues in if.pm
Cheers,
Rob
------------------------------
Date: Sun, 29 Jan 2006 23:32:38 +0100
From: "Dr.Ruud" <rvtol+news@isolution.nl>
Subject: Re: When were @- and @+ added
Message-Id: <drjk77.1a8.1@news.isolution.nl>
Dr.Ruud schreef:
> Abigail schreef:
>> Sisyphus:
>
>>> use warnings;
>>> "foo" =~ /o/g;
>>> print scalar @-;
>>>
>>> If I don't 'use warnings;' in that script, it reverts to
>>> outputting '1'.
>>
>> I can't reproduce that with any version of Perl that supports @-.
>
> perl, v5.8.6 built for i386-freebsd-64int
>
> $ perl -e 'use strict; use warnings; "foo" =~ /o/g; print scalar @-'
> 134641065
> $ perl -e 'use warnings; "foo" =~ /o/g; print scalar @-'
> 134621613
> $ perl -e '"foo" =~ /o/g; print scalar @-'
> 1
perl, v5.8.7 built for cygwin-thread-multi-64int
$ perl -e 'use strict; use warnings; "foo" =~ /o/g; print scalar @-'
1628668893
$ perl -e 'use warnings; "foo" =~ /o/g; print scalar @-'
35
$ perl -e '"foo" =~ /o/g; print scalar @-'
1
perl, v5.8.7 built for MSWin32-x86-multi-thread (ActivePerl build 815)
C:\>perl -e "use strict; use warnings; 'foo' =~ /o/g; print scalar @-"
27651977
C:\>perl -e "use warnings; 'foo' =~ /o/g; print scalar @-"
786437
C:\>perl -e "'foo' =~ /o/g; print scalar @-"
1
--
Affijn, Ruud
"Gewoon is een tijger."
------------------------------
Date: Sun, 29 Jan 2006 23:51:05 GMT
From: "A. Sinan Unur" <1usa@llenroc.ude.invalid>
Subject: Re: When were @- and @+ added
Message-Id: <Xns975ABFD8D3695asu1cornelledu@127.0.0.1>
"Sisyphus" <sisyphus1@nomail.afraid.org> wrote in
news:43dd4b3b$0$21414$afc38c87@news.optusnet.com.au:
>
> "A. Sinan Unur" <1usa@llenroc.ude.invalid> wrote in message
> news:Xns975A62FF45729asu1cornelledu@127.0.0.1...
>> "Sisyphus" <sisyphus1@nomail.afraid.org> wrote in
>> news:43dc85d3$0$5922$afc38c87@news.optusnet.com.au:
>>
>> > ActiveState's build 815 seems immune to the problem.
>> > However, their build 810 (perl 5.8.4) *does* suffer this strange
>> > affliction, as does my MinGW-built perl 5.8.7, and my VC++7.0-built
>> > perl 5.8.7. I'll wait and see what perl 5.8.8 brings.
>>
>> Are these all on the same machine?
>>
>
> Yes - on the same Windows 2000 box.
> I'm wondering whether build 815 incorporates a patch that addresses
> this isuue. With ActiveState perl, 'perl -V' lists the patches that
> have been applied, but I can't see anything listed there (see below)
> that looks like it might have fixed this particular problem. Of
> course, the fix might have been applied in build 814 or 813 ... but I
> don't know how to find out which patches were applied to those builds
> (unless I actually install those 2 builds and run 'perl -V' :-)
http://aspn.activestate.com/ASPN/docs/ActivePerl/5.8/changes-58.html
Hope this helps.
Sinan
--
A. Sinan Unur <1usa@llenroc.ude.invalid>
(reverse each component and remove .invalid for email address)
comp.lang.perl.misc guidelines on the WWW:
http://mail.augustmail.com/~tadmc/clpmisc/clpmisc_guidelines.html
------------------------------
Date: Mon, 30 Jan 2006 11:17:14 +1100
From: "Sisyphus" <sisyphus1@nomail.afraid.org>
Subject: Re: When were @- and @+ added
Message-Id: <43dd5b98$0$10626$afc38c87@news.optusnet.com.au>
"Dr.Ruud" <rvtol+news@isolution.nl>
>
>
> perl, v5.8.7 built for MSWin32-x86-multi-thread (ActivePerl build 815)
>
> C:\>perl -e "use strict; use warnings; 'foo' =~ /o/g; print scalar @-"
> 27651977
> C:\>perl -e "use warnings; 'foo' =~ /o/g; print scalar @-"
> 786437
> C:\>perl -e "'foo' =~ /o/g; print scalar @-"
> 1
>
Aaah, so AS build 815 *is* afflicted (I get the same) - but not in the same
way as my other builds. I'll file a bug report now.
Cheers,
Rob
------------------------------
Date: Mon, 30 Jan 2006 11:22:14 +1100
From: "Sisyphus" <sisyphus1@nomail.afraid.org>
Subject: Re: When were @- and @+ added
Message-Id: <43dd5cc4$0$11102$afc38c87@news.optusnet.com.au>
"A. Sinan Unur" <1usa@llenroc.ude.invalid>
>> but I
> > don't know how to find out which patches were applied to those builds
> > (unless I actually install those 2 builds and run 'perl -V' :-)
>
> http://aspn.activestate.com/ASPN/docs/ActivePerl/5.8/changes-58.html
>
Thanks for the link (which I've saved). Couldn't really see anything that
would explain the change in behaviour.
Dr.Ruud has just pointed out that build 815 is afflicted - though in
not-quite-the-same-way as my other builds, so I'll file a bug report.
Cheers,
Rob
------------------------------
Date: Mon, 30 Jan 2006 00:38:23 GMT
From: "A. Sinan Unur" <1usa@llenroc.ude.invalid>
Subject: Re: When were @- and @+ added
Message-Id: <Xns975AC7DDCFE09asu1cornelledu@127.0.0.1>
"Sisyphus" <sisyphus1@nomail.afraid.org> wrote in
news:43dd5cc4$0$11102$afc38c87@news.optusnet.com.au:
>
> "A. Sinan Unur" <1usa@llenroc.ude.invalid>
>
>>> but I
>> > don't know how to find out which patches were applied to those
>> > builds (unless I actually install those 2 builds and run 'perl -V'
>> > :-)
>>
>> http://aspn.activestate.com/ASPN/docs/ActivePerl/5.8/changes-58.html
>>
>
> Thanks for the link (which I've saved). Couldn't really see anything
> that would explain the change in behaviour.
>
> Dr.Ruud has just pointed out that build 815 is afflicted - though in
> not-quite-the-same-way as my other builds, so I'll file a bug report.
It is a little crazy ... I tried the cases he posted, and I get
something different (with the same AS Perl):
C:\opt> perl -e "use warnings; 'foo' =~ /o/g; print scalar @-"
262152
C:\opt> perl -e "use strict; use warnings; 'foo' =~ /o/g; print scalar
@-"
1
C:\opt> perl -e "'foo' =~ /o/g; print scalar @-"
1
Anyway, a bug report is probably the best way to go at this point.
Thank you.
Sinan
--
A. Sinan Unur <1usa@llenroc.ude.invalid>
(reverse each component and remove .invalid for email address)
comp.lang.perl.misc guidelines on the WWW:
http://mail.augustmail.com/~tadmc/clpmisc/clpmisc_guidelines.html
------------------------------
Date: Mon, 30 Jan 2006 12:07:02 +1100
From: "Sisyphus" <sisyphus1@nomail.afraid.org>
Subject: Re: When were @- and @+ added
Message-Id: <43dd6745$0$15127$afc38c87@news.optusnet.com.au>
"A. Sinan Unur" <1usa@llenroc.ude.invalid> wrote in message
>
> Anyway, a bug report is probably the best way to go at this point.
>
For anyone interested, the perlbug auto-reply informs me that my ticket has
been assigned an ID of [perl #38363].
Cheers,
Rob
------------------------------
Date: Mon, 30 Jan 2006 02:20:21 +0100
From: "Dr.Ruud" <rvtol+news@isolution.nl>
Subject: Re: When were @- and @+ added
Message-Id: <drjt6m.do.1@news.isolution.nl>
Sisyphus schreef:
> Aaah, so AS build 815 *is* afflicted [...]
> I'll file a bug report now.
OK, thanks.
--
Affijn, Ruud
"Gewoon is een tijger."
------------------------------
Date: 6 Apr 2001 21:33:47 GMT (Last modified)
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Subject: Digest Administrivia (Last modified: 6 Apr 01)
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------------------------------
End of Perl-Users Digest V10 Issue 8899
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