Re: SQL log analyzer for Apache::DBILogger
On Mon, 5 Feb 2001 [EMAIL PROTECTED] wrote: Sometime in the next month I need to embark on a log analyzer for the logs we've been accumulating for many moons via Apache::DBILogger. Has anyone made any effort to do such a thing already? I've dug around the web for a while and come up with zilch. I have a script that reads the logs from the database and dumps it out to a flat file in the standard format Apache uses when writing access_log, then I run a program called webalizer on it. I actually don't use Apache::DBILogger, but the database table is similar to the table generated by Apache::DBILogger. _ T.J. Mather http://tjmather.com http://cpan2.org/ New CPAN Search Engine http://www.anidea.com/ Digital Asset Management http://www.theinnkeeper.com/Bed and Breakfast Directory
Re: Environnement stability and maturity
In local.modperl you write: What is the "official" home of 5.6.1rev2? I can't seem to locate it on CPAN anywhere. The p5p summary on http://www.perl.com/ seems to be under the impression that 5.6.1 isn't going to be out for a while. I remember seeing a pointer to one of the very early patches, but I can't seem to find it again. Thanks in advance-- Probably because you looked for 5.6.1rev2. The name is perl-5.6.1-TRIAL2. Look for it at $CPAN/authors/id/G/GS/GSAR/perl-5.6.1-TRIAL2.tar.gz . Sarathy is on it, and I expect the final 5.6.1 Real Soon Now. The TRIAL2 had a couple of problems, and there will probably a TRIAL3. (My personal guess.) -- | [EMAIL PROTECTED] |http://free.prohosting.com/~lupe | | "Real stupidity beats artificial intelligence every time." | | Hogfather | | Terry Pratchett|
Re: Apache::Session::File
How do i change this locking mechanish of win32?
Am i using the wrong module? From apache::session::* modules
do you know which are supposed to work on win32?
Thanks
Gunther Birznieks wrote:
You need to change the locking mechanism on Win32 to not use IPC. I believe
there are examples for using Flock based locking but am not sure.
If you are using win32 mod_perl, locking is irrelevant anyway because all
requests are serialized through one engine.
At 03:43 PM 2/5/01 +, harilaos wrote:
Hello,
I ma trying to use this module to store persident data on file
on win32 environment.
I use the code:
use Apache;
use Apache::Session::File;
use CGI qw/:standard/;
use CGI::Carp qw(fatalsToBrowser);
print header();
print start_html;
my %global_data;
eval {
tie %global_data, 'Apache::Session::File', 1,
{Directory = '/temp/sessiondata'};
};
if ($@) {
die "Global data is not accessible: $@";
}
print "hello";
print end_html;
I get error in apache logs :
Can't locate IPC/SysV.pm in @INC
do I need the IPC/SysV.pm module?
I have searched the documentation but i don't see a simple clear example
to do this.
Can you help please?
Thanks
__
Gunther Birznieks ([EMAIL PROTECTED])
eXtropia - The Web Technology Company
http://www.extropia.com/
RE: Help: Can't use string (Exchange::Account::My) as a HASH ref while strict refs in use trying to use instance variables in my handler
Subject: Help: Can't use string ("Exchange::Account::My") as
a HASH ref
while "strict refs" in use trying to use instance variables in my
handler
[snip]
sub handler ($$) {
my ($self, $q) = @_;
my $r= Apache::Request-new($q);
$self-child_init unless $self-{_child_started_up}; # dies
here!
[snip]
I think that you really need to have a legitimate constructor, not one that
is called conditionally. $self is not a blessed reference - just a string
containing the class name. The call to $self-child_init works, even with
strict refs, because there is a child_init subroutine defined in your
package's namespace. With $self-{_child_started_up}, you're just calling
"Exchange::Account::My"-{_child_started_up}, which will cause the error
since the string "Exchange::Account::My" is not a reference to a hash, it's
just a string.
Anyway, what you should do is create a constructor:
sub new {
my $class = shift;
my $self {@_};
bless $self, $class;
return $self;
}
Then rewrite the above snippet of your code to:
sub handler ($$) {
my ($class, $q) = @_;
my $r = Apache::Request-new($q);
my $self = $class-new(request=$r);
$self-child_init unless $self-{_child_started_up};
# The rest of the code...
Then you should be good to go (instance variables and all!). Hope that
helps,
Chris
Apache::DBILogger
I have set this up with our Oracle Database, but I am not getting anything in the database nor am I getting any errors. Everything still seems to log to the log files? If errors are being generated, where would I find them? Any way to trace through and see what is happening? -- C Wayne Huling [EMAIL PROTECTED]
Re: SQL log analyzer for Apache::DBILogger
On Tue, 6 Feb 2001, T.J. Mather wrote: I have a script that reads the logs from the database and dumps it out to a flat file in the standard format Apache uses when writing access_log, then I run a program called webalizer on it. I actually don't use Apache::DBILogger, but the database table is similar to the table generated by Apache::DBILogger. I'd thought of doing that or modifying webalizer to work off the SQL tables. It seems to me like there's so much more possible with storing summary information in the database that's periodically refreshed and avoiding HTML generation except when the user requests it. I'm going to look at the code Ask recommended today. -- /chris Those who cannot remember the past are doomed to buy Microsoft products.
Re: [OT] Design Patterns in mod_perl apps?
Thank you for that pointer. I checked http://www.pagekit.org/. Looks very interesting. While on the subject I'd like to mention another really nice book by Mark Grand called "Patterns in Java" that might be of interest to those looking into Design Patterns. This book has many additional pattern to those in GoF such as 'concurrency patterns' and 'filter' which Gunther was alluding to. Also there is a chapter on UML which was very useful to me. The patterns are all illustrated with UML. It would be terrific if those who ARE using Design Patterns in their web apps could contribute to a 'Design patterns' chapter to Stas's Guide. I would have been happy to volunteer but for the fact that I am way early on my learning curve and it will be a while before I can do it. -or- Gunther, I have two of your books on my shelf and would love to add a third one, how about it? :)) -bakki Perrin Harkins wrote: Gunther Birznieks wrote: GoF did not introduce Model-View-Controller architecture. But it is discussed in Wiley's "A System of Patterns: Pattern-Oriented Software Architecture". MVC is frequently used in mod_perl apps. For example, see Apache::PageKit. - Perrin -- _ _ .-. |M|S| Bakki Kudva |D|_|a|y| Navaco |o|m|n|s|\420 Pasadena Drive |c|e|a|t| \\ Erie, PA 16505-1037 |u|n|g|e| \\ http://www.navaco.com/ | |T|e|m| \ ph: 814-833-2592 "" fax:603-947-5747 e-Docs
RE: Doh; StatINC can't find files?
wm looks like a home directory. The default perms on the home directory are usually 700. Try changing that to something like 755 or even 744 (it may not need execute). Actually, the x bit on directory perms means "accessible," meaning if you KNOW the name of the file, U can reach it at all... I ran into this when trying to allow ~/public_html. 701 is the correct mask. L8r, Rob
RE: Doh; StatINC can't find files?
Neither of the following combinations worked for me: drwx--x--x3 rlandrum devel4096 Jan 30 14:14 public_html (711, Forbidden) drwx-x3 rlandrum devel4096 Jan 30 14:14 public_html (701, Forbidden) The only one that worked was: drwxr-xr-x3 rlandrum devel4096 Jan 30 14:14 public_html (755) I didn't try 705, but I'm pretty sure it would work. Under Linux, 'x' does mean execute... from the chmod manpage The letters `rwxXstugo' select the new permissions for the affected users: read (r), write (w), execute (or access for directories) (x), execute only if the file is a direc- tory or already has execute permission for some user (X), set user or group ID on execution (s), save program text on swap device (t), the permissions that the user who owns the file currently has for it (u), the permissions that other users in the file's group have for it (g), and the permissions that other users not in the file's group have for it (o). Without the x bit, a user does not have permission to execute anything from within the scope of that directory. Nor can the user change into that directory. Robert Landrum At 10:49 AM -0800 2/6/01, Rob Bloodgood wrote: wm looks like a home directory. The default perms on the home directory are usually 700. Try changing that to something like 755 or even 744 (it may not need execute). Actually, the x bit on directory perms means "accessible," meaning if you KNOW the name of the file, U can reach it at all... I ran into this when trying to allow ~/public_html. 701 is the correct mask. L8r, Rob Robert L. Landrum Senior Programmer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "It's working correctly. It's simply working in contrast to what you have perceived to be correct."
Re: Debugging mod_perl with gdb
Hi there, On Tue, 6 Feb 2001, Shane Adams wrote: I've found a "write to a dangling pointer" when apache/mod_perl evaluates a perl section of the apache config file. My question: How do I go about attacking this problem? 1. Reduce your test case to the absolute minimum. 2. 'perldoc perldebug' 3. 'man gdb' 4. http://perl.apache.org/guide. 73, Ged.
Re: Debugging mod_perl with gdb
If you're looking for which piece of perl code being processed, there are some gdb macros to help. If you source the .gdbinit in the root of your modperl dir you have access to a bunch of cool macros to use. In this case, curinfo will give you the current line number in your perl code. here's the macro: define curinfo printf "%d:%s\n", PL_curcop-cop_line, \ ((XPV*)(*(XPVGV*)PL_curcop-cop_filegv-sv_any)\ -xgv_gp-gp_sv-sv_any)-xpv_pv end hope that helps. sterling On Tue, 6 Feb 2001, Shane Adams wrote: Hey there - I've successfully built apache/mod_perl with full debugging. In addition, I'm running the whole setup through insure, a commercial memory leak/corruption tool. I've found a "write to a dangling pointer" when apache/mod_perl evaluates a perl section of the apache config file. My question: How do I go about attacking this problem? I only know that I'm in a Perl section due to printing out some variables somewhere at ap_read_config() to invoke_cmd(). I guess I'm trying to find out what the perl script is doing when the memory corruption occurs. Obviously if I could narrow the offending line of code (if possible) I might be able to better understand where the real bug is. Shane -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 30, 2001 5:25 PM To: AxKit Users Mailing List Cc: [EMAIL PROTECTED] Subject: (Correction) Re: Object-XML serialization [was Re: AxKit Users?] On Tue, 30 Jan 2001 [EMAIL PROTECTED] wrote: Castor (for Java, from www.exolab.com), uses an actual XML Schema for this. The advantage is that you can leverage off the fairly rich existing set of defined datatypes. Sorry, it's www.exolab.org, don't you hate that? --Chris
RE: Debugging mod_perl with gdb
Title: RE: Debugging mod_perl with gdb Hey thanks. I'll try this. I tried the 'man gdb' command and it didn't help much I'm afraid... -Original Message- From: sterling [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 06, 2001 12:33 PM To: Shane Adams Cc: [EMAIL PROTECTED] Subject: Re: Debugging mod_perl with gdb If you're looking for which piece of perl code being processed, there are some gdb macros to help. If you source the .gdbinit in the root of your modperl dir you have access to a bunch of cool macros to use. In this case, curinfo will give you the current line number in your perl code. here's the macro: define curinfo printf %d:%s\n, PL_curcop-cop_line, \ ((XPV*)(*(XPVGV*)PL_curcop-cop_filegv-sv_any)\ -xgv_gp-gp_sv-sv_any)-xpv_pv end hope that helps. sterling On Tue, 6 Feb 2001, Shane Adams wrote: Hey there - I've successfully built apache/mod_perl with full debugging. In addition, I'm running the whole setup through insure, a commercial memory leak/corruption tool. I've found a write to a dangling pointer when apache/mod_perl evaluates a perl section of the apache config file. My question: How do I go about attacking this problem? I only know that I'm in a Perl section due to printing out some variables somewhere at ap_read_config() to invoke_cmd(). I guess I'm trying to find out what the perl script is doing when the memory corruption occurs. Obviously if I could narrow the offending line of code (if possible) I might be able to better understand where the real bug is. Shane -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 30, 2001 5:25 PM To: AxKit Users Mailing List Cc: [EMAIL PROTECTED] Subject: (Correction) Re: Object-XML serialization [was Re: AxKit Users?] On Tue, 30 Jan 2001 [EMAIL PROTECTED] wrote: Castor (for Java, from www.exolab.com), uses an actual XML Schema for this. The advantage is that you can leverage off the fairly rich existing set of defined datatypes. Sorry, it's www.exolab.org, don't you hate that? --Chris
Re: Help: Can't use string (Exchange::Account::My) as a HASH ref while strict refs in use trying to use instance variables in my handler
Anyway, what you should do is create a constructor:
sub new {
my $class = shift;
my $self {@_};
bless $self, $class;
return $self;
}
You mean like this code segment that I included in my original post
just below the handler code :)
sub init {
my $invocant = shift;
my $class = ref ($invocant) || $invocant;
my $self = {};
bless ($self, $class);
$self-{config}= $self-init_config;
$self-{dispatch} = $self-init_dispatch_table;
$self-{templates} = $self-init_templates;
$self-{_child_started_up} = 0;
return $self;
}
... straight out of "Programming Perl" ...
Then rewrite the above snippet of your code to:
sub handler ($$) {
my ($class, $q) = @_;
my $r = Apache::Request-new($q);
my $self = $class-new(request=$r);
Hunh?!?
Wait a second. I have a startup.pl, and inside that I have the lines:
use Exchange::Account::My;
my $account_interface = Exchange::Account::My-init;
Won't that do what I need it to do? When the root process forks off
children, won't a complete copy of $account_interface go with it, with
everything all set and ready to go?
$self-child_init unless $self-{_child_started_up};
# The rest of the code...
Then you should be good to go (instance variables and all!). Hope that
helps,
Chris
Except for calling the contructor with every call of the handler,
I think I've done everything right. Isn't the part of idea behind
mod_perl handlers that one _doesn't_ have to call the contructor
_every_ time the handler gets called? Otherwise invites massive
overhead.
Obviously, what I'm doing doesn't work. But could someone show me
how to call the constructor just once in in a childs lifetime?
Please?
--Christopher
RE: Doh; StatINC can't find files?
"RL" == Robert Landrum [EMAIL PROTECTED] writes: RL Under Linux, 'x' does mean execute... from the chmod manpage RL The letters `rwxXstugo' select the new permissions for the RL affected users: read (r), write (w), execute (or access RL for directories) (x), execute only if the file is a direc- But it is a directory, so it means "access". If you know the file name, you can access it. You just need to ensure that you don't need to read the directory itself, if you don't want "r" permissions.
Re: Error reporting mod_perl 1.25 + apache 1.3.17
Actually My current builds are very similar. 1.3.17+1.25w/5.6.0 on slackware linux 7.1, dually intel boxes. Works fine and while watching error logs i haven't seen any segfaults. returns our pages just fine. Scott On Mon, 5 Feb 2001, Paul Lindner wrote: On Mon, Feb 05, 2001 at 06:41:00PM +, G.W. Haywood wrote: Hi there, On Mon, 5 Feb 2001, Matisse Enzer wrote: I compiled perl 5.6 and Apache 1.3.17 using gcc egcs-2.91.66 on a RH Linux 6.1 system. I'm sure there must be people on this List who have successfully built mod_perl systems using exactly the packages you have mentioned. Anyone care to confirm that? I've seen some strange segementation fault problems with mod_perl 1.25. I have not had the time to document these. Environment is similar to others: mod_perl 1.25, apache 1.3.17, perl 5.00503, solaris 2.6...
RE: Apache::ASP Best Language to use?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Matthew Schroeder Sent: 05 February 2001 21:13 To: '[EMAIL PROTECTED]' Subject:Apache::ASP Best Language to use? Currently the company I work for is using ASP code running on Windows servers. We'd like to run a web server that isn't microsoft based for obvious reasons. We don't have so much ASP code, so it would be possible to scrap it and start over. What would you guys suggest as the best option: 1. Porting our ASP code to Apache::ASP and continue development in ASP 2. Doing new development in JSP 3. Doing new development in CGI 4. Doing new development in Coldfusion ANSWER : 2 (TWO) Please reply to my private email, since I'm not a subscriber to the modperl mailing list. Sincerely, Matthew Schroeder PMAI Software Developer Phone: 517-788--8100 ext. 352
RE: Debugging mod_perl with gdb
Hi again, On Tue, 6 Feb 2001, Shane Adams wrote: I tried the 'man gdb' command and it didn't help much I'm afraid... Then why not have a look at http://www.gnu.org/manual/gdb-4.17/gdb.html I'm not a great fan of using debuggers, but as they go it's fantastic, it's really worth getting to know it - especially when you may be looking inside complex data structures, there it really shines. 73, Ged.
Re: Error reporting mod_perl 1.25 + apache 1.3.17
I used to have all these seg faults when dealing with apache1.3.14 and mod_perl1.24_01 (perl5.6.0/redhat 6.2) when built as DSO. As soon as you get a request through log files just get flooded with segmentation faults. However when I switched over to apache1.3.17 + mod_perl1.25 everything goes on just fine. Try using PERL_USELARGEFILES=0 when building mod_perl too. cheers, dima On Mon, 5 Feb 2001, modperl wrote: Actually My current builds are very similar. 1.3.17+1.25w/5.6.0 on slackware linux 7.1, dually intel boxes. Works fine and while watching error logs i haven't seen any segfaults. returns our pages just fine. Scott On Mon, 5 Feb 2001, Paul Lindner wrote: On Mon, Feb 05, 2001 at 06:41:00PM +, G.W. Haywood wrote: Hi there, On Mon, 5 Feb 2001, Matisse Enzer wrote: I compiled perl 5.6 and Apache 1.3.17 using gcc egcs-2.91.66 on a RH Linux 6.1 system. I'm sure there must be people on this List who have successfully built mod_perl systems using exactly the packages you have mentioned. Anyone care to confirm that? I've seen some strange segementation fault problems with mod_perl 1.25. I have not had the time to document these. Environment is similar to others: mod_perl 1.25, apache 1.3.17, perl 5.00503, solaris 2.6...
object not being destroyed in a TemplateToolkit-based handler
I sent this to the Template Toolkit list but got no responses. I'm
pretty sure it is a mod_perl issue, but I can't for the life of me
figure out why the object doesn't get destroyed in the mod_perl
context. A standalone test program always destroys the object at the
expected time.
This bug happens even under httpd -X.
--original message--
I have a plugin I'm writing to access an Apache::Session::MySQL
object. What I do is create a hash that contains the fields
"_CONTEXT" pointing to the context, "verbose" being a debug flag, and
"_session" being a reference to the tied hash from
Apache::Session::MySQL. The constructor looks something like this:
my $self = { _CONTEXT = $context, verbose = 0 };
bless $self, $class;
# do the tie, error checks, etc.
$self-{_session} = \%session;
return $self;
Now I have a handler in mod_perl that runs *.mlm files through $tt,
which is a TT object that has pre/post process, plugin path, and some
global stash variables pre-defined.
This works fine from my templates:
[% USE s = session %]
[% s.stepsdone = s.stepsdone + 1 %]
Psteps done = [% s.stepsdone %]/P
However, at the end of the template processing, the object is not
destroyed; that is, the DESTROY() method is never called, and
therefore the tied hash never gets untied and Apache::Session::MySQL
doesn't get a chance to write the data back to the store.
But when I kill httpd, all the objects created are then destroyed
(my DESTROY() has a debug statement that gets printed) and the session
is saved to the database (albeit, all identical since each new object
read the original data rather than the updated values).
It matters not whether I [% PROCESS %] or [% INCLUDE %] the template
that instantiates this object.
I tried to isolate a case of this in its own program, but of course
the object was destroyed every time...
Any ideas on where to trace this down?
FW: Doh; StatINC can't find files?
execute (or access for directories) (x) drwx-x3 rlandrum devel4096 Jan 30 14:14 public_html (701, Forbidden) that's not what I meant, I should have been more clear. 755 on public_html 701 on ~user so ~user is still "hidden" from general eyes but ~user/public_html is ACCESSIBLE (x) thru ~user, and public_html is READABLE/ACCESSIBLE (r-x) to nobody.
FW: Doh; StatINC can't find files?
Thanks for the clarification. It worked perfect. drwx-x 12 rlandrum rlandrum 4096 Feb 6 14:05 rlandrum drwxr-xr-x3 rlandrum devel4096 Jan 30 14:14 rlandrum/public_html Rob execute (or access for directories) (x) drwx-x3 rlandrum devel4096 Jan 30 14:14 public_html (701, Forbidden) that's not what I meant, I should have been more clear. 755 on public_html 701 on ~user so ~user is still "hidden" from general eyes but ~user/public_html is ACCESSIBLE (x) thru ~user, and public_html is READABLE/ACCESSIBLE (r-x) to nobody. Robert L. Landrum Senior Programmer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "It's working correctly. It's simply working in contrast to what you have perceived to be correct."
Re: object not being destroyed in a TemplateToolkit-based handler
Vivek Khera ([EMAIL PROTECTED]) said something to this effect on 02/06/2001: However, at the end of the template processing, the object is not destroyed; that is, the DESTROY() method is never called, and therefore the tied hash never gets untied and Apache::Session::MySQL doesn't get a chance to write the data back to the store. You aren't clear about the scope of $tt; it sounds like a package level global, if it's being destroyed when the children exit. How about creating a PerlCleanupHandler to explicit destroy $tt? (darren) -- Entropy isn't what it used to be.
Re: object not being destroyed in a TemplateToolkit-based handler
On Tue, 6 Feb 2001, Vivek Khera wrote: However, at the end of the template processing, the object is not destroyed; that is, the DESTROY() method is never called, and therefore the tied hash never gets untied and Apache::Session::MySQL doesn't get a chance to write the data back to the store. Hmmm... If I'm reading the code correctly, what's supposed to happen is that the stash (where your plugin instance lives) gets localized when you call $tt-process() and de-localized at the end, which should result in anything you added to it (with your USE s = session) getting DESTROY-ed. Maybe there's a bug in this process somewhere? Are you keeping a copy of the stash anywhere else? Are you doing something in your plugin's load() method that involves a reference to the session object? That could cause this kind of problem. Maybe you could post a bit more of your plugin code. To make sure your stash is getting cleared, try putting some other object into it (by passing it to process) and see if it gets destroyed. If it does, then there's something about the way your plugin is written that's causing the problem. If not, TT has a problem. - Perrin
Re: object not being destroyed in a TemplateToolkit-based handler
On Tue, 6 Feb 2001, darren chamberlain wrote: Vivek Khera ([EMAIL PROTECTED]) said something to this effect on 02/06/2001: However, at the end of the template processing, the object is not destroyed; that is, the DESTROY() method is never called, and therefore the tied hash never gets untied and Apache::Session::MySQL doesn't get a chance to write the data back to the store. You aren't clear about the scope of $tt; it sounds like a package level global, if it's being destroyed when the children exit. How about creating a PerlCleanupHandler to explicit destroy $tt? No, don't do that. You need $tt to stick around, so that you can get the large speed increase from using the in-memory cache. - Perrin
Apache: ASP
I am getting errors when I try and run ASP on my Linux box... Here is what pops up on the web page, I am not sure how to fix it or what exactly is wrong with it. Any help you can offer will be appreciated.. #!/usr/local/bin/perl5 asp [0]% ([0]%source) Thanks, Paul Scott [EMAIL PROTECTED]
ANNOUNCE: OpenInteract Web Application Server
I'm jazzed to announce the public release of OpenInteract, an
extensible web application framework using mod_perl and the Template
Toolkit as its core technologies. But the README already does all the
heavy lifting:
WHAT IS IT?
=
OpenInteract is an extensible application server using Apache and
mod_perl built for developers but also to be manageable almost
entirely via the web browser. It includes:
- A robust system of components built on templates that can access
your data just about any way that you can think of.
- A very flexible separation of presentation and data access: you can
use one template for accessing data from different sources (e.g., a
listing of users from the system, from an LDAP server, from an NT/SMB
authentication controller, etc.) or you can use one set of data to
fill multiple templates.
- A consistent security mechanism makes it a snap to control security
for users and groups not only at the task level, but also at the
individual data object level.
- A simple user and group-management system that allows users to
create their own accounts and an administrator to assign them to one
or more groups.
- A convenient packaging system that makes it simple for developers
to distribute code, configuration and all other information necessary
for an application. It also makes the installation and upgrading
processes very straightforward.
- An integrated, database-independent method for distributing data
necessary for a package. You should be able to install any
package on any database that's been tested with OpenInteract. (Some
of this work must be done by the package authors, but OpenInteract
tries to make this as painless as possible.)
OpenInteract is available via CPAN in a bundle form
('Bundle::OpenInteract') for EZ install. SourceForge currently hosts
CVS and mailing lists at:
http://sourceforge.net/projects/openinteract/
Other information about the project (including press releases) is
available at:
http://www.openinteract.org/
OpenInteract is available under the same Artistic/GPL license as
Perl. Hope you find it as much fun as I do!
Chris
--
Chris Winters ([EMAIL PROTECTED])
Building enterprise-capable snack solutions since 1988.
Re: ANNOUNCE: OpenInteract Web Application Server
Chris Winters wrote: I'm jazzed to announce the public release of OpenInteract, an extensible web application framework using mod_perl and the Template Toolkit as its core technologies. Hi Chris, I've been reading the docs for the last couple of days and it looks very interesting. It's great to see a well-documented open source project. I have a couple of specific questions, which I guess are really about SPOPS more than OpenInteract. First, how much control do I have over what gets loaded when in objects with dependencies? For example, if I have an object with relationships to other objects, some of which are expensive to fetch from the database, can I defer certain parts from loading until I actually use them? Second, how hard is it to override the default load/save stuff in a SPOPS object in order to do some fancy SQL? I've had situations before with O/R mappers where I want to use some more complex SQL for efficiency reasons (optimizer hints, etc.) or to load a set of objects at once (like a tree structure). Is that possible with SPOPS? Finally, if I'm using a SQL database, what support is provided for evolving the data model? Do I have to change my schema and write conversion scripts every time I change an object attribute, or does SPOPS try to use some sort of "generic" schema? And just out of curiosity, are you familiar with any of the similar projects that others have worked on, like Iaido (formerly Iaijutsu) or Jellybean? - Perrin
Re: ANNOUNCE: OpenInteract Web Application Server
* Perrin Harkins ([EMAIL PROTECTED]) [010206 22:43]: Hi Chris, I've been reading the docs for the last couple of days and it looks very interesting. It's great to see a well-documented open source project. I have a couple of specific questions, which I guess are really about SPOPS more than OpenInteract. Hi Perrin, Thanks for the doc comments! More work always remains First, how much control do I have over what gets loaded when in objects with dependencies? For example, if I have an object with relationships to other objects, some of which are expensive to fetch from the database, can I defer certain parts from loading until I actually use them? Nothing gets loaded until you do a fetch() on an object or on one of its dependent objects. For instance, in the standard user/group way of doing things: # Fetch the user object my $user = My::User-fetch( $user_id ); # None of the associated group objects get fetched until you ask for # them like this my $group_list = $user-group; That said, efficiency hasn't been at the top of the list yet. (Some basic caching hooks are there but nothing attached yet.) I'm following Andy Wardley's example with the Template Toolkit -- make it right first and fast second :-) Second, how hard is it to override the default load/save stuff in a SPOPS object in order to do some fancy SQL? I've had situations before with O/R mappers where I want to use some more complex SQL for efficiency reasons (optimizer hints, etc.) or to load a set of objects at once (like a tree structure). Is that possible with SPOPS? It's not too difficult. The SQL stuff for DBI SPOPS objects actually goes through two layers -- one dealing with more abstract notions of 'save()' and 'remove()' and the other dealing with more concrete INSERT/UPDATE/DELETE statements. The second one (SPOPS::SQLInterface) is quite flexible but at a lower level which should enable you to do custom statements. You can do as much or as little as you like -- passing a fully-formed SQL statement with a list of values to bind does the right thing. So if you wanted to modify how objects get saved but not removed, you should just be able to override the 'save()' interface of SPOPS::DBI and nothing else. But I haven't tried this yet :-) Finally, if I'm using a SQL database, what support is provided for evolving the data model? Do I have to change my schema and write conversion scripts every time I change an object attribute, or does SPOPS try to use some sort of "generic" schema? It's actually much simpler than that. Since SPOPS doesn't save any schema information in the database itself, all you have to do is add the field to your database (with an 'ALTER TABLE' statement or whatnot) and add the field name to the SPOPS configuration definition in the 'field' key. Removals are the same. And datatype definitions shouldn't require any changes at all, as long as the DBD supports datatype discovery sufficient for SPOPS to bind variables smartly. It's a more lightweight approach than Tangram or Alzabo but deals with most of the issues I've run across in a few years of web (etc.) programming. And just out of curiosity, are you familiar with any of the similar projects that others have worked on, like Iaido (formerly Iaijutsu) or Jellybean? I've looked into both of them at one time or another -- OpenInteract has been under construction for about a year and SPOPS (and ancestors) more another half-year before that. I'm jealous of Jellybean's self-sufficiency, of the cool apps built on Iaido so far and of the clean model of both of them. I hope to swipe (with generous attribution) as much as possible. Chris -- Chris Winters ([EMAIL PROTECTED]) Building enterprise-capable snack solutions since 1988.
Re: [Templates] Re: ANNOUNCE: OpenInteract Web Application Server
* L.M.Orchard ([EMAIL PROTECTED]) [010207 00:07]: So, I'm trying to install OpenInteract now since from 50,000 ft it sounds a lot like what I was trying to do with Iaido. Using Template Toolkit for the presentation... abstracted data management... Need to look around more. I'd be more than glad to help you and maybe even have Iaido get eaten up by your project since I seem to have lost the momentum to sustain it by myself. There are a lot of neat things going in in Iaido, and still on my TODO list for it to get completely tossed, though. (Like, I really want to get that FTPd interface to the data store up and running again :) ) Anyway, having major problems getting past the oi_manage install_sql step so far, maybe I'll post to the -dev list or the bugs on sourceforge. It's probably early to talk about one project swallowing another :-) I'm certainly not shy about looking for great ideas wherever they are. And now that OpenInteract is out I hope to take a step back and look at other environments for inspiration. (Building some services on top of POE would be extremely cool, for starters.) One of the things OpenInteract has going for it is that a company (intes.net) uses it constantly and pays people to develop applications for it. I'm finding how difficult it is to do more programming after hours, even fun stuff like this. This is getting rapidly OT. Moving this onto the -dev list is a good idea. Thanks, Chris -- Chris Winters ([EMAIL PROTECTED]) Building enterprise-capable snack solutions since 1988.
File::Cache problem
Hello modperl,
There is Apache Perl module, which uses File::Cache.
File::Cache object is initialized in every request with params
namespace PRTL
max_size 10485760
expires_in 86400
cache_depth 3
Cache size after 24 hours of working
via 'du -s' - 53M
via 'perl -MFile::Cacje -e"print File::Cache::SIZE('PRTL')"' - 10M
Count of cache nodes is several thousands.
And when cache size is exceeded all mod_perl processes are hanging.
In logs
[Wed Feb 7 08:50:50 2001] [error] Undefined subroutine File::Cache::thaw called at
/usr/local/lib/site_perl/File/Cache.pm line 601.
What is the best way to limit cache ?
May be variant when File::Cache::REDUCE_SIZE(10485760) in cron.dayly
will be better solution ? I this case max_size doesnt need to specify
in object initialization params...
And another question (I'm use Linux Debian Potato)...
Is there way to define params of the currently performing request
(URI, script, etc) of hanging mod_perl process ? I browsed /proc/[PID of
mod_perl]/, but I think this info is about first request. Am I wrong ?
Sergey Polyakov aka "BeerBong"
Chief of WebZavod http://www.webzavod.ru
Tel. +7 (8462) 43-93-85 | +7 (8462) 43-93-86
mailto:[EMAIL PROTECTED]
