You are viewing a plain text version of this content. The canonical link for it is here.
Posted to modperl@perl.apache.org by "Marc M. Adkins" <mm...@Doorways.org> on 2003/07/17 22:16:32 UTC
clones and parents
Let's say I want to create a site with five virtual hosts. I want all of
them to share the basic MP2 stuff, Apache-related modules and so forth.
Then, for Virtual Host 1 (VH1 for short ;) I want to specify a set of
modules unique to VH1. For VH2-VH4 I want to specify another set of
modules, but the same set for all of those virtual hosts.
So I feel like I want to have two interpreter pools. I want a parent at the
top-most level (outside of all of the virtual hosts) that loads the basic
stuff. Then I want a parent and a pool for VH1. Then I want a parent and a
pool for VH2-VH4 to share.
I'm not clear on how to do this or even if it is possible. I understand how
the Clone and Parent options work, but they depend on the structure of the
Apache configuration file. I don't offhand know of a way to group four
virtual hosts into a block so that they can inherit the same parent/pool.
If I were trying to solve this (assuming that it isn't already possible
somehow) I might come up with the concept of named interpreter parent/pools.
Something like:
<PerlInterpPool VH1>
PerlRequire "VH1/startup.pl"
...
</PerlInterpPool>
<PerlInterpPool VHX>
PerlRequire "VHX/startup.pl"
...
</PerlInterpPool>
<VirtualHost VH1>
PerlInterpPool VH1
</VirtualHost>
<VirtualHost VH2>
PerlInterpPool VHX
</VirtualHost>
...
<VirtualHost VH5>
PerlInterpPool VHX
</VirtualHost>
But that's just off the top of my head and probably wrong for any number of
reasons.
Any thoughts? Or better yet, a way to do this with MP2 already?
mma
Re: clones and parents (bug report)
Posted by Stas Bekman <st...@stason.org>.
Randy Kobes wrote:
[..]
> Just to verify, I also get this with ActivePerl 806,
> Apache/2.0.47, and the current mod_perl cvs version.
> Here's some partial debug information:
> ============================================================
> PERL58! 28083490()
> PERL58! 280648b5()
and what are these two perl calls?
> modperl_perl_destruct(interpreter * 0x0089c794):
> line 130 + 9 bytes: modperl_perl.c
Perhaps the interpreter struct is corrupt?
> modperl_interp_destroy(modperl_interp_t * 0x008a47c8):
> line 128 + 12 bytes: modperl_interp.c
> modperl_interp_pool_destroy(void * 0x00869b78):
> line 184 + 12 bytes: modperl_interp.c
> run_cleanups(cleanup_t * * 0x0089a7a8):
> line 1980: httpd-2.0.47\srclib\apr\memory\unix\apr_pools.c
> apr_pool_destroy(apr_pool_t * 0x00401585):
> line 758: httpd-2.0.47\srclib\apr\memory\unix\apr_pools.c
> main(int 0x00401d82, const char * const * 0x00000001) line 619
> APACHE! mainCRTStartup + 227 bytes
> KERNEL32! 77e7eb69()
> ===================================================================
>
--
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
RE: clones and parents (bug report)
Posted by Randy Kobes <ra...@theoryx5.uwinnipeg.ca>.
On Fri, 18 Jul 2003, Marc M. Adkins wrote:
>
> -------------8<---------- Start Bug Report ------------8<----------
> 1. Problem Description:
>
> # Problem: When I add PerlOptions +Parent I get a segfault.
> #
> # Breaks with:
> # Windows 2000 SP2
> # Apache 2.0.46
> # ActiveState Perl 5.8.0 (build 804)
> # mod_perl 1.99.10dev (installed using mpinstall.pl,
> # re-installed TODAY to be safe)
> #
> # C:\Apache2\conf\parental.conf
> LoadFile C:/Perl/bin/perl58.dll
> LoadModule perl_module modules/mod_perl.so
> ###########################################################################
> #
> # Setup for named virtual hosts on port 80:
> #
>
> NameVirtualHost *:80
> Listen 80
>
> ###########################################################################
>
> <VirtualHost *:80>
> ServerName localhost:80
> ServerAdmin admin@localhost
> DocumentRoot C:/Apache2/htdocs
> PerlOptions +Parent
> PerlSwitches -wT
> </VirtualHost>
Just to verify, I also get this with ActivePerl 806,
Apache/2.0.47, and the current mod_perl cvs version.
Here's some partial debug information:
============================================================
PERL58! 28083490()
PERL58! 280648b5()
modperl_perl_destruct(interpreter * 0x0089c794):
line 130 + 9 bytes: modperl_perl.c
modperl_interp_destroy(modperl_interp_t * 0x008a47c8):
line 128 + 12 bytes: modperl_interp.c
modperl_interp_pool_destroy(void * 0x00869b78):
line 184 + 12 bytes: modperl_interp.c
run_cleanups(cleanup_t * * 0x0089a7a8):
line 1980: httpd-2.0.47\srclib\apr\memory\unix\apr_pools.c
apr_pool_destroy(apr_pool_t * 0x00401585):
line 758: httpd-2.0.47\srclib\apr\memory\unix\apr_pools.c
main(int 0x00401d82, const char * const * 0x00000001) line 619
APACHE! mainCRTStartup + 227 bytes
KERNEL32! 77e7eb69()
===================================================================
--
best regards,
randy kobes
RE: clones and parents (bug report)
Posted by "Marc M. Adkins" <mm...@Doorways.org>.
-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:
# Problem: When I add PerlOptions +Parent I get a segfault.
#
# Breaks with:
# Windows 2000 SP2
# Apache 2.0.46
# ActiveState Perl 5.8.0 (build 804)
# mod_perl 1.99.10dev (installed using mpinstall.pl,
# re-installed TODAY to be safe)
#
# Pops up "Apache.exe - Application Error" box:
# The instruction at "0x280830ed"
# referenced memory at "0x00000000".
# The memory could not be "written".
#
# After killing the box the command line says:
# C:\Apache2\bin> apache
# Starting Apache...
# and must be killed via <ctrl-C>. The error log is empty.
#
# In at least one case the Apache.exe process refused to stop
# and COULD NOT BE SHUT DOWN VIA TASK MANAGER, requiring reboot.
# This seems to happen when <ctrl-c> is not invoked immediately
# after cancelling the message box.
2. Used Components and their Configuration:
*** mod_perl version 1.9910
*** using C:/Perl/site/lib/Apache/BuildConfig.pm
*** Makefile.PL options:
MP_AP_PREFIX => \Apache2
MP_COMPAT_1X => 1
MP_GENERATE_XS => 1
MP_INST_APACHE2 => 1
MP_LIBNAME => mod_perl
MP_USE_DSO => 1
MP_USE_STATIC => 1
*** \Apache2/bin/Apache.exe -V
Server version: Apache/2.0.46
Server built: May 27 2003 23:15:42
Server's Module Magic Number: 20020903:3
Architecture: 32-bit
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/winnt"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D HTTPD_ROOT="/apache"
-D SUEXEC_BIN="/apache/bin/suexec"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error.log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
*** C:\Perl\bin\perl.exe -V
Summary of my perl5 (revision 5 version 8 subversion 0) configuration:
Platform:
osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread
uname=''
config_args='undef'
hint=recommended, useposix=true, d_sigaction=undef
usethreads=undef use5005threads=undef useithreads=define
usemultiplicity=define
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cl', ccflags
='-nologo -Gf -W3 -MD -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES
_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSV
CRT_READFIX',
optimize='-MD -DNDEBUG -O1',
cppflags='-DWIN32'
ccversion='', gccversion='', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64',
lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='link', ldflags
'-nologo -nodefaultlib -release -libpath:"C:\Perl\lib\CORE" -machine:x86'
libpth="C:\Program Files\Microsoft.Net\Odbc.Net\" "C:\Perl\lib\CORE"
libs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib
comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib wsock32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib
msvcrt.lib
perllibs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib
comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib
uuid.lib wsock32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib
msvcrt.lib
libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib
gnulibc_version='undef'
Dynamic Linking:
dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
cccdlflags=' ',
ddlflags='-dll -nologo -nodefaultlib -release -libpath:"C:\Perl\lib\CORE"
-machine:x86'
Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES
PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
Locally applied patches:
ActivePerl Build 804
Built under MSWin32
Compiled at Dec 1 2002 23:15:13
%ENV:
PERL_LWP_USE_HTTP_10="1"
@INC:
C:/Perl/lib
C:/Perl/site/lib
.
3. This is the core dump trace: (if you get a core dump):
# I don't have anything built with debug but even so the stack shows:
# PERL58.DLL
# PERL58.DLL
# MOD_PERL.DLL
# when I pop into the debugger from the alert panel.
This report was generated by -e on Fri Jul 18 23:48:59 2003 GMT.
-------------8<---------- End Bug Report --------------8<----------
#
# C:\Apache2\conf\parental.conf
#
# Minimal configuration for breaking PerlOptions +parent.
# Use Include directive in generic httpd.conf
#
# There is no startup.pl here, nor much of anything else.
# I first discovered this issue in a fully populated environment
# with all of that good stuff. I removed all of the other goop
# and it still blows up here. When I had startup.pl going I
# added trace statements and startup.pl appeared to execute
# to completion before the message box appeared.
#
# Removing PerlOptions +parent makes the crash go away.
#
###########################################################################
#
# Logging more than the default messages:
#
LogLevel debug
###########################################################################
#
# Setup mod_perl
#
LoadFile C:/Perl/bin/perl58.dll
LoadModule perl_module modules/mod_perl.so
###########################################################################
#
# Setup for named virtual hosts on port 80:
#
NameVirtualHost *:80
Listen 80
###########################################################################
#
#
#
<VirtualHost *:80>
ServerName localhost:80
ServerAdmin admin@localhost
DocumentRoot C:/Apache2/htdocs
PerlOptions +Parent
PerlSwitches -wT
</VirtualHost>
RE: clones and parents
Posted by "Marc M. Adkins" <mm...@Doorways.org>.
> > I never know whether to submit a bug report or not. Often
> these things turn
> > out to be known issues or I find out it was my own bug at some
> later time...
>
> If you get a segfault, chances are that something is broken, since the sw
> should gracefully handle cases when someone does something wrong
> and not segfault.
OK. Give me a day or so to double-check by coming up with a minimal test
case. Which will aid in the debugging effort (one hopes).
mma
Re: clones and parents
Posted by Stas Bekman <st...@stason.org>.
Marc M. Adkins wrote:
>>>So is PerlOptions +Parent working? Whenever I enable it I get
>>
>>a segfault on
>>
>>>W2K / Ap2.0.46 / mp1.99.10dev.
>>
>>have you submitted a bug report?
>>http://perl.apache.org/docs/2.0/user/help/help.html#Reporting_Problems
>
>
> I never know whether to submit a bug report or not. Often these things turn
> out to be known issues or I find out it was my own bug at some later time...
If you get a segfault, chances are that something is broken, since the sw
should gracefully handle cases when someone does something wrong and not segfault.
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
RE: clones and parents
Posted by "Marc M. Adkins" <mm...@Doorways.org>.
> > So is PerlOptions +Parent working? Whenever I enable it I get
> a segfault on
> > W2K / Ap2.0.46 / mp1.99.10dev.
>
> have you submitted a bug report?
> http://perl.apache.org/docs/2.0/user/help/help.html#Reporting_Problems
I never know whether to submit a bug report or not. Often these things turn
out to be known issues or I find out it was my own bug at some later time...
mma
Re: clones and parents
Posted by Stas Bekman <st...@stason.org>.
Marc M. Adkins wrote:
> No wonder this seemed familiar. I wrote pretty much the same memo six weeks
> ago. D'oh! I've been spending too much time at the keyboard...
I thought I had dejavu ;)
> So is PerlOptions +Parent working? Whenever I enable it I get a segfault on
> W2K / Ap2.0.46 / mp1.99.10dev.
have you submitted a bug report?
http://perl.apache.org/docs/2.0/user/help/help.html#Reporting_Problems
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
RE: clones and parents
Posted by "Marc M. Adkins" <mm...@Doorways.org>.
No wonder this seemed familiar. I wrote pretty much the same memo six weeks
ago. D'oh! I've been spending too much time at the keyboard...
So is PerlOptions +Parent working? Whenever I enable it I get a segfault on
W2K / Ap2.0.46 / mp1.99.10dev.
mma
> -----Original Message-----
> From: Marc M. Adkins [mailto:mmadki@Doorways.org]
> Sent: Thursday, July 17, 2003 1:17 PM
> To: modperl@perl.apache.org
> Subject: clones and parents
>
>
> Let's say I want to create a site with five virtual hosts. I want all of
> them to share the basic MP2 stuff, Apache-related modules and so forth.
> Then, for Virtual Host 1 (VH1 for short ;) I want to specify a set of
> modules unique to VH1. For VH2-VH4 I want to specify another set of
> modules, but the same set for all of those virtual hosts.
>
> So I feel like I want to have two interpreter pools. I want a
> parent at the
> top-most level (outside of all of the virtual hosts) that loads the basic
> stuff. Then I want a parent and a pool for VH1. Then I want a
> parent and a
> pool for VH2-VH4 to share.
>
> I'm not clear on how to do this or even if it is possible. I
> understand how
> the Clone and Parent options work, but they depend on the structure of the
> Apache configuration file. I don't offhand know of a way to group four
> virtual hosts into a block so that they can inherit the same parent/pool.
>
> If I were trying to solve this (assuming that it isn't already possible
> somehow) I might come up with the concept of named interpreter
> parent/pools.
> Something like:
>
> <PerlInterpPool VH1>
> PerlRequire "VH1/startup.pl"
> ...
> </PerlInterpPool>
>
>
> <PerlInterpPool VHX>
> PerlRequire "VHX/startup.pl"
> ...
> </PerlInterpPool>
>
> <VirtualHost VH1>
> PerlInterpPool VH1
> </VirtualHost>
>
> <VirtualHost VH2>
> PerlInterpPool VHX
> </VirtualHost>
>
> ...
>
> <VirtualHost VH5>
> PerlInterpPool VHX
> </VirtualHost>
>
> But that's just off the top of my head and probably wrong for any
> number of
> reasons.
>
> Any thoughts? Or better yet, a way to do this with MP2 already?
>
> mma
>
>