Re: Failing to reconnect after Oracle shutdown abort (Apache::DBI)
Tim Bunce [EMAIL PROTECTED] writes: Has anyone experienced a situation where a process (httpd for example) can't reconnect to Oracle after a "shutdown abort"? Tim. As far as I can tell we never get a clean reconnection after any sort of connection problem. I don't even think it takes a shutdown abort to cause this. -- greg
[Perl Q]: Calendar function
hi list, [sorry for the OT] I'm about to develop a monthly calendar, something akin to netscape's scheduler. To start, I'm looking for a reliable function to calculate each day of any given month/year. Or pointers to a usable formula to calculate it. I don't really mind doing it myself, just trying not to reinvent the calendar. Thanks! martin ps: I know most of you laugh at such a Q. This must be a college exercise, but I 've never been into a programming college. Sorry. -- - Martin Langhoff @ S C I M Multimedia Technology - - http://www.scim.net | God is real until - - mailto:[EMAIL PROTECTED] | declared integer -
Memory problems
Hi I had huge problems yesterday. Our web site made it in to the Sunday Times and has had to serve 1/2 million request in the last 2 days. Had I set it up to have proxy servers and a separate mod_perl server? No. DOH! So what happened to my 1Gig baby? It died. A sad and unhappy death. I am in the process of fixing that, but if anybody could help with this question, it'd be appreciated. I am running Apache 1.3.9, mod_perl 1.21, Linux 2.2.11, mysql 3.23.3-alpha. What happened was this: My memory usage went up and up until I got "Out of memory" messages MySQL bailed out. Memory usage was high, and the server was swapping as well. So I thought - restart MySQL and restart Apache. But I couldn't reclaim memory. It was just unavailable. How do you reclaim memory other than by stopping the processes or powering down? Is this something that might have happened because it went past the Out of Memory stage? Thanks Clint
Re: Memory problems
I had huge problems yesterday. Our web site made it in to the Sunday Times and has had to serve 1/2 million request in the last 2 days. Oh, I thought there was a /. effect, now it's a sunday effect :) Had I set it up to have proxy servers and a separate mod_perl server? No. DOH! So what happened to my 1Gig baby? It died. A sad and unhappy death. I am in the process of fixing that, but if anybody could help with this question, it'd be appreciated. I am running Apache 1.3.9, mod_perl 1.21, Linux 2.2.11, mysql 3.23.3-alpha. What happened was this: My memory usage went up and up until I got "Out of memory" messages MySQL bailed out. Memory usage was high, and the server was swapping as well. First, what you had to do in first place, is to set MaxClients to such a number, that when you take the worst case of the process growing to X size in memory, your machine wouldn't swap. Which will probably return an Error to some of the users, when processes would be able to queue all the requests, but it would never keep your machine down! Other than that you have to set a limit on the resources if you need , see Apache::SizeLimit, Apache::GTopLimit, BSD::Resource So I thought - restart MySQL and restart Apache. But I couldn't reclaim memory. It was just unavailable. How do you reclaim memory other than by stopping the processes or powering down? Is this something that might have happened because it went past the Out of Memory stage? Sure, when machine starts to make a heavy swapping you might wait for hours before it gets stabilized. Since all it does it swapping in and immediately swapping out. But when it's finished - you wouldn't see swap zeroed - it would be still used when you check it with top (or other tool) but it wouldn't be actually used if you have enough free real memory (well not really - it would use it for a while). What I usually do is swapoff /dev/hdxxx swapon /dev/hdxxx on the swap partition if I know that there is enough real memory available to absorb the data that will be deleted from swap. it might take a while and make sure that you have ENOUGH memory to absorb, it otherwise the machine will stack (I wouldn't it on a live server for sure :) Just remember that what you see in the stat, is not what really being used, since linux and other OSes do lots of caching... Hope this helps... ___ Stas Bekman mailto:[EMAIL PROTECTED]www.singlesheaven.com/stas Perl,CGI,Apache,Linux,Web,Java,PC at www.singlesheaven.com/stas/TULARC www.apache.org www.perl.com == www.modperl.com || perl.apache.org single o- + single o-+ = singlesheavenhttp://www.singlesheaven.com
OT: Re: mod-perl logo
Chris Thompson wrote: On Mon, Nov 01, 1999 at 04:42:50PM -0400, Neil Kandalgaonkar wrote: Joshua Chamas [EMAIL PROTECTED] wrote: That said, they do allow non-profits and others to use the camel, e.g. the Perl Mongers. It's not evil, they're just trying to protect a trademark which they built. AFAIK no one associated a camel w/perl before the ORA books. There's a slightly different reason that you are all missing. It's not that they WANT to defend their trademark, it's that they HAVE to defend their trademark, or they lose it. As I recall under US trademark law, if I can prove that you knew of a use of your trademark and did nothing, The courts can say that you werent defending it, and take it away. [cut] Just goes to show, in the US if you dont vigorously defend your rights to any registered or implicit trademark, you can lose it. Trademark law is probably designed to avoid the very kind of situation that is going on with Unisys and GIFs. Unfortunately, that's a *patent*.
Re: setting cookies?
On Mon, Nov 01, 1999 at 05:03:58PM -0500, Robin Berjon wrote: I've never tried this but doesn't sending two 401s in a row for the same document have the auth popup appear again ? I feel like this topic gets slightly confusing. Browser sends request, gets 401 back, asks user for username and password if it doesn't have one cached already. If it has one cached for this particular realm then it attempts to send the cached values. If in response it gets 401 again then it asks user for new username and password for this realm. As far as I know it always takes 2 requests to get protected document. First one returns with 401 code and realm for authentication, second request is done with appropriate user name and password. So if for some reason you decide that some user name and password is not valid any more then you should make sure that if they are sent any number of times later then your authentication handler says no always. Andrei --
Re: [Perl Q]: Calendar function
Hi,
Check out the man pages for strftime and and the perldoc pages for
localtime for more detailed info.
For example
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
$currentDate = POSIX::strftime("%Y%m%d", localtime(time));
Hope this helps
naren
At 10:12 AM 11/2/99 +, Martin A. Langhoff wrote:
hi list,
[sorry for the OT] I'm about to develop a monthly calendar,
something akin to netscape's scheduler. To start, I'm looking for a
reliable function to calculate each day of any given month/year.
Or pointers to a usable formula to calculate it.
I don't really mind doing it myself, just trying not to reinvent the
calendar.
Thanks!
martin
ps: I know most of you laugh at such a Q. This must be a college
exercise, but I
've never been into a programming college. Sorry.
--
- Martin Langhoff @ S C I M Multimedia Technology -
- http://www.scim.net | God is real until -
- mailto:[EMAIL PROTECTED] | declared integer -
Checking for valid dates
Is there a reasonably easy method to make sure that an entered date is valid, I.E. is not 30 Jan 99? I am using Time::Local to convert a date entered through an HTML form into the epoch offset (or whatever you call it) and would like to make sure that valid dates are entered. Thanks Derric L. Tubbs CITIS Administrator Boeing - Fort Walton Beach, Florida [EMAIL PROTECTED] (850)302-4494
Re: Checking for valid dates
"Tubbs, Derric L" wrote: Is there a reasonably easy method to make sure that an entered date is valid, I.E. is not 30 Jan 99? I am using Time::Local to convert a date entered through an HTML form into the epoch offset (or whatever you call it) and would like to make sure that valid dates are entered. Thanks Just because I'm curious, please explain what isn't valid about 30 Jan 99. ObPerl: The Date::Calc module might be what you need. -- Jeffrey W. Baker * [EMAIL PROTECTED] Critical Path, Inc. * we handle the world's email * www.cp.net 415.808.8807
Re: Memory problems
Stas Bekman [EMAIL PROTECTED] writes: I had huge problems yesterday. Our web site made it in to the Sunday Times and has had to serve 1/2 million request in the last 2 days. Oh, I thought there was a /. effect, now it's a sunday effect :) The original concept should be credited to Larry Niven, he called the effect "Flash crowds" Had I set it up to have proxy servers and a separate mod_perl server? No. DOH! So what happened to my 1Gig baby? It died. A sad and unhappy death. I strongly suggest you move the images to a separate hostname altogether. The proxy is a good idea but there are other useful effects of having a separate server altogether that I plan to write about in a separate message sometime. This does mean rewriting all your img tags though. What happened was this: My memory usage went up and up until I got "Out of memory" messages MySQL bailed out. Memory usage was high, and the server was swapping as well. So I thought - restart MySQL and restart Apache. But I couldn't reclaim memory. It was just unavailable. How do you reclaim memory other than by stopping the processes or powering down? Is this something that might have happened because it went past the Out of Memory stage? Have you rebooted yet? Linux has some problems recovering when you run out of memory really badly. I haven't tried debugging but our mail exchangers have done some extremely wonky things once they ran out of memory even once everything had returned to normal. Once non-root users couldn't fork, they just got "Resource unavailable" but root was fine and memory usage was low. First, what you had to do in first place, is to set MaxClients to such a number, that when you take the worst case of the process growing to X size in memory, your machine wouldn't swap. Which will probably return an Error to some of the users, when processes would be able to queue all the requests, but it would never keep your machine down! I claim MaxClients should only be large enough to force 100% cpu usage whether from your database or the perl script. There's no benefit to having more processes running if they're just context switching and splitting the same resources finer. Better to queue the users in the listen queue. On that note you might want to set the BackLog parameter (I forget the precise name), it depends on whether you want users to wait indefinitely or just get an error. -- greg
Re: setting cookies?
I think if you send a 401 in response to a request that contained auth data the user will typically see a "Authentication failed" box, which may look bad compared to just getting the password dialog. Actually I couldn't get this to work a while back, but I didn't try very hard. "Andrei A. Voropaev" [EMAIL PROTECTED] writes: On Mon, Nov 01, 1999 at 05:03:58PM -0500, Robin Berjon wrote: I've never tried this but doesn't sending two 401s in a row for the same document have the auth popup appear again ? I feel like this topic gets slightly confusing. Browser sends request, gets 401 back, asks user for username and password if it doesn't have one cached already. If it has one cached for this particular realm then it attempts to send the cached values. If in response it gets 401 again then it asks user for new username and password for this realm. As far as I know it always takes 2 requests to get protected document. First one returns with 401 code and realm for authentication, second request is done with appropriate user name and password. So if for some reason you decide that some user name and password is not valid any more then you should make sure that if they are sent any number of times later then your authentication handler says no always. Andrei -- -- greg
Re: Checking for valid dates -- off topic!
At 10:33 -0800 1999-11-02, Tubbs, Derric L wrote: Is there a reasonably easy method to make sure that an entered date is valid, I.E. is not 30 Jan 99? I am using Time::Local to convert a date entered through an HTML form into the epoch offset (or whatever you call it) and would like to make sure that valid dates are entered. Thanks This isn't on topic. Could people please stick to the list topic? If you are looking for general perl help, please try other avenues. Anyway, as you may already know, Time::Local does not reject impossible dates. [neil@tux neil]$ perl -MTime::Local -e 'print scalar localtime ( timelocal (0,0,0,30,1,1999) ) . "\n"' Tue Mar 2 00:00:00 1999 As usual, if you have a problem you know other people have dealt with you should always check the CPAN http://search.cpan.org/ first. Date::Calc has a check_date function. -- Neil Kandalgaonkar [EMAIL PROTECTED] Systems Architect, Stylus Inc. http://www.stylus.ca/
Re: setting cookies?
Success! The problem is, the tokencode sent by the user expires the instant its validity is determined. That the browser caches this and returns it over and over is not only a nuisance, it can cause the SecurID server to disable the token. Problem was, the client kept coughing up an invalid cookie which was checked, deemed invalid, and the AUTH_REQUIRED sent back. Just made a loop the module could never escape. Now I (correctly) hand expired cookies off to the SecurID portion of our show, which forces another basic auth. At any rate, point is, two 401s in quick succession will throw an authorization failed message at the user, then prompt for a new username/password. I haven't had a user who didn't understand, in some vague way, that his surfing had come to an end and he'd have to fish the tokencard out one more time. Thanks! Wy On 2 Nov 1999, Greg Stark wrote: I think if you send a 401 in response to a request that contained auth data the user will typically see a "Authentication failed" box, which may look bad compared to just getting the password dialog. Actually I couldn't get this to work a while back, but I didn't try very hard. "Andrei A. Voropaev" [EMAIL PROTECTED] writes: On Mon, Nov 01, 1999 at 05:03:58PM -0500, Robin Berjon wrote: I've never tried this but doesn't sending two 401s in a row for the same document have the auth popup appear again ? I feel like this topic gets slightly confusing. Browser sends request, gets 401 back, asks user for username and password if it doesn't have one cached already. If it has one cached for this particular realm then it attempts to send the cached values. If in response it gets 401 again then it asks user for new username and password for this realm. As far as I know it always takes 2 requests to get protected document. First one returns with 401 code and realm for authentication, second request is done with appropriate user name and password. So if for some reason you decide that some user name and password is not valid any more then you should make sure that if they are sent any number of times later then your authentication handler says no always. Andrei -- -- greg Wyman Miles Senior Systems Administrator, Rice University, Texas. (713) 737-5827, e-mail:[EMAIL PROTECTED], pager:[EMAIL PROTECTED]
RE: Checking for valid dates -- off topic!
Sorry about that, you're absolutely right. I got several responses and they solved my problem. Thanks. And now back to the topic ... -- From: Neil Kandalgaonkar[SMTP:[EMAIL PROTECTED]] Sent: Tuesday, November 02, 1999 12:40 PM To: Tubbs, Derric L; '[EMAIL PROTECTED]' Subject: Re: Checking for valid dates -- off topic! At 10:33 -0800 1999-11-02, Tubbs, Derric L wrote: Is there a reasonably easy method to make sure that an entered date is valid, I.E. is not 30 Jan 99? I am using Time::Local to convert a date entered through an HTML form into the epoch offset (or whatever you call it) and would like to make sure that valid dates are entered. Thanks This isn't on topic. Could people please stick to the list topic? If you are looking for general perl help, please try other avenues. Anyway, as you may already know, Time::Local does not reject impossible dates. [neil@tux neil]$ perl -MTime::Local -e 'print scalar localtime ( timelocal (0,0,0,30,1,1999) ) . "\n"' Tue Mar 2 00:00:00 1999 As usual, if you have a problem you know other people have dealt with you should always check the CPAN http://search.cpan.org/ first. Date::Calc has a check_date function. -- Neil Kandalgaonkar [EMAIL PROTECTED] Systems Architect, Stylus Inc. http://www.stylus.ca/
validating dates
Sorry that I had put this on the modperl list. I got several responses both on the list and privately and they solved my problem. Thanks Derric L. Tubbs CITIS Administrator Boeing - Fort Walton Beach, Florida [EMAIL PROTECTED] (850)302-4494
OT: database redundancy in web env
Hi guys, I know its totally off-topic and prolly better suited for the DBI list. But I believe this list is read by more experienced people. Anyways my apologies. I am looking for working setups for database redundancy in a web environment; 24/7 stuff!! Using a farm of machines running mod_perl and slimlined apaches behind a box like the ArrowPoint content smart switch (wicked layer 5 load balancer) has proved successfull. But how to further redundancy in the back end; the databases?! The only things I can think of are: - replication (like Oracle does, but suitable for web ?!?) - multiplexing process to forward write-transactions to all db's .. and they both don't really sound smashing :( I love to hear from Ask, imdb guys (Rob you alive?!) or anyone else offcourse how they maintain ~100% uptime. And again sorry for the off-topic. Cheers, -Renzo ps. anyone working with BroadVision products? Like to talk..
mod_perl programming logic error
(Note: I'm no longer on the mailing list; so if you wish to respond
to me, please be certain to include my email address in the response.
Also, [EMAIL PROTECTED] no longer works FYI. Thanks.)
Granted we're running an older copy of mod_perl; but when we noticed
that we were getting hammered by the spam of "rwrite returned -1"
in our log files, I took a look at the source code. I then compared
it to the current source code; I believe I have found a programming
logic error that is still in the current version. Below is the
code (from the current version) that I believe needs to be modified
for correctness (in the write_client function):
while(len 0) {
sent = 0;
if(len HUGE_STRING_LEN) {
sent = rwrite(buffer, len, r);
}
else {
sent = rwrite(buffer, HUGE_STRING_LEN, r);
buffer += HUGE_STRING_LEN;
}
if(sent 0) {
rwrite_neg_trace(r);
break;
}
len -= sent;
RETVAL += sent;
}
Notice that if len HUGE_STRING_LEN; we REQUEST to write 'len' bytes,
but we only write 'sent' bytes. If 0 sent len; then we iterate
back over this while loop because len 0 after the len -= sent command.
On the next write, however, we are rewriting from the position the
buffer had on the LAST write because the buffer was not incremented.
Notice also, that if len = HUGE_STRING_LEN that we are requesting
to write HUGE_STRING_LEN bytes; but we only write 'sent' bytes. Now,
if sent HUGE_STRING_LEN, then we decrement our len by the correct
number of bytes--but we increment our buffer HUGE_STRING_LEN - sent
bytes beyond the correct position.
Below is code that corrects for these counting errors. I've consolidated
the rwrite into one command using the ?: operator to decide the length
to request be written. Then I've incremented buffer by the correct the
amount sent--no matter what is written this incrementation will be correct.
while(len 0) {
sent = rwrite (buffer,
(lenHUGE_STRING_LEN) ? len : HUGE_STRING_LEN,
r );
if(sent 0) {
rwrite_neg_trace(r);
break;
}
buffer += sent;
len -= sent;
RETVAL += sent;
}
I look forward to any comments you have on this; including "you've missed
the point of the function entirely" if that is the case. :)
--
Michael Douglass
Texas Networking, Inc.
Any sufficiently advanced bug is indistinguishable for a feature.
-- from some indian guy
make test errors
trying to install mod_perl and everything appears to compile fine, but a make test gives the following errors: make[1]: Leaving directory `/data/test/ssl_apache/mod_perl-1.21/Util' ../apache_1.3.9/src/httpd -f `pwd`/t/conf/httpd.conf -X -d `pwd`/t httpd listening on port 8529 will write error_log to: t/logs/error_log letting apache warm up...\c Syntax error on line 3 of /data/test/ssl_apache/mod_perl-1.21/t/conf/httpd.conf: Invalid command '=pod', perhaps mis-spelled or defined by a module not included in the server configuration done /usr/bin/perl t/TEST 0 still waiting for server to warm upnot ok server failed to start! at t/TEST line 95. make: *** [run_tests] Error 9 Any ideas why? s -- Scott R. Every - mailto:[EMAIL PROTECTED] EMJ Internet - http://www.emji.net voice : 1-888-258-8959 fax : 1-919-363-4425
Apache::ASP
We are trying to store references in session variables but for some reason
this does not work. The reference cannot be regained.
For example, in simple Perl I can create an array containing two anonymous
hashes, then place a reference to this array in
$d, then dereference $d to recover the array.
@c[0]={'k1','v1','k2','v2'};
@c[1]={'k3','v3','k4','v4'};
$d=\@c;
print $$d[0]{'k1'},"\n";
@e=@$d;
print $e[0]{'k1'},"\n";
Using a session variable instead of $d allows the assignment but the session
variable cannot then be dereferenced successfully. The problem also occurs
with Apache::DBI database handles, which are some kind of hash reference.
These cannot be stored in session variables, either.
I assume there is some arcane Perl reason for this, but I lack the guru
skills to divine this. Is there any way to store non-scalar variables in
session variables?.
mod_perl and DBI
I'm making a first attempt to run a working Perl CGI run under mod_perl. It uses perl dbi successfully under CGI. When invoking the script under mod_perl, I get the following error: [Tue Nov 2 11:49:43 1999] [error] Can't load '/usr/lib/perl5/site_perl/5.005/i386-linux/auto/DBI/DBI.so' for module DBI: /usr/lib/perl5/site_perl/5.005/i386-linux/auto/DBI/DBI.so: undefined symbol: PL_dowarn at /usr/lib/perl5/5.00503/i386-linux/DynaLoader.pm line 169. Would someone kindly point me in the right direction? Thanks, Dan
Re: Checking for valid dates
I did this using a JavaScript function that runs before the form is submitted to validate the date locally (in the client, using JavaScript Date objects) before submission. Has the side benefit of giving the user real time feed back as well without a send back to the server Brgds, Mike. On Tue, 2 Nov 1999 10:33:22 -0800, Tubbs, Derric L wrote: Is there a reasonably easy method to make sure that an entered date is valid, I.E. is not 30 Jan 99? I am using Time::Local to convert a date entered through an HTML form into the epoch offset (or whatever you call it) and would like to make sure that valid dates are entered. Thanks Derric L. Tubbs CITIS Administrator Boeing - Fort Walton Beach, Florida [EMAIL PROTECTED] (850)302-4494
RE: Memory problems
Thanks Greg I strongly suggest you move the images to a separate hostname altogether. The proxy is a good idea but there are other useful effects of having a separate server altogether that I plan to write about in a separate message sometime. This does mean rewriting all your img tags though. Look forward to that with interest Have you rebooted yet? Linux has some problems recovering when you run out of memory really badly. I haven't tried debugging but our mail exchangers have done some extremely wonky things once they ran out of memory even once everything had returned to normal. Once non-root users couldn't fork, they just got "Resource unavailable" but root was fine and memory usage was low. I have rebooted. Eventually what happened was that my ethernet driver stopped working - gave some error message about trying to restart transition zone (I think? I wasn't actually there - I had to get others to pull the plug to power down) First, what you had to do in first place, is to set MaxClients to such a number, that when you take the worst case of the process growing to X size in memory, your machine wouldn't swap. Which will probably return an Error to some of the users, when processes would be able to queue all the requests, but it would never keep your machine down! Done I claim MaxClients should only be large enough to force 100% cpu usage whether from your database or the perl script. There's no benefit to having more processes running if they're just context switching and splitting the same resources finer. Better to queue the users in the listen queue. I have two PIII 500's, so CPU usage is no problem. Amazingly, it's the 1Gig of memory which expires first. On that note you might want to set the BackLog parameter (I forget the precise name), it depends on whether you want users to wait indefinitely or just get an error. Sounds like the route to go. I'm also busy implementing the proxy erver bit. Thanks a lot Greg Clint
referenced symbol not found error
*This message was transferred with a trial version of CommuniGate(tm) Pro* Hello, I'm trying to compile mod_perl-1.21 as DSO module for apache version 1.3.9 on Solaris 2.6 using gcc version 2.8.1 and perl version 5.00562. Right now I'am using out the box vanilla configuration of apache. Everything compiles ok, but then I try to start apache, I get the following error: Syntax error on line 224 of /usr/local/apache/conf/httpd.conf: Cannot load /usr/local/apache/libexec/libperl.so into server: ld.so.1: /usr/local/apache/bin/httpd: fatal: relocation error: file /usr/local/apache/libexec/libperl.so: symbol perl_eval_pv: referenced symbol not found /usr/local/apache/bin/apachectl start: httpd could not be started. Here is the output of make test: SNIP /usr/bin/perl t/TEST 0 Syntax error on line 1 of /local/packages/apache/mod_perl-1.21/t/conf/httpd.conf: Cannot load /local/packages/apache/mod_perl-1.21/t/../../apache_1.3.9/src/modules /perl/libperl.so into server: ld.so.1: ../apache_1.3.9/src/httpd: fatal: relocation error: file /local/packages/apache/mod_perl-1.21/t/../../apache_1.3.9/src/modules /perl/libperl.so: symbol perl_eval_pv: referenced symbol not found still waiting for server to warm upnot ok server failed to start! at t/TEST line 95. make: *** [run_tests] Error 146 /SNIP # perl -V Summary of my perl5 (revision 5.0 version 5 subversion 62) configuration: Platform: osname=solaris, osvers=2.6, archname=sun4-solaris uname='sunos arkadiy 5.6 generic_105181-05 sun4u sparc sunw,ultra-5_10 ' config_args='' hint=previous, useposix=true, d_sigaction=define usethreads=undef useperlio=undef d_sfio=undef use64bits=define usemultiplicity=undef Compiler: cc='gcc', optimize='-O', gccversion=2.8.1 cppflags='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DUSE_LONG_LONG -DSOCKS -I/usr/local/include -DUSE_LONG_LONG' ccflags ='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DUSE_LONG_LONG -DSOCKS -I/usr/local/include -DUSE_LONG_LONG' stdchar='unsigned char', d_stdstdio=define, usevfork=false intsize=4, longsize=4, ptrsize=4, doublesize=8 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16 alignbytes=8, usemymalloc=y, prototype=define Linker and Libraries: ld='gcc', ldflags =' -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib /usr/ccs/lib libs=-lsocket -lnsl -ldl -lm -lc -lcrypt \lsec libc=, so=so, useshrplib=false, libperl=libperl.a Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' ' cccdlflags='-fPIC', lddlflags='-G -L/usr/local/lib' Characteristics of this binary (from libperl): Built under solaris Compiled at Oct 29 1999 13:01:49 @INC: /usr/local/lib/perl5/5.00562/sun4-solaris /usr/local/lib/perl5/5.00562 /usr/local/lib/site_perl/5.00562/sun4-solaris /usr/local/lib/site_perl . Have anybody seen this before, or better yet, found a solution for this problem? Thanks in advance. PS I apologize if this message was sent more then once.
Re: mod_perl 2.21 segmentation fault
glibc 2.0.7 ^^^ Maybe you should consider upgrading to a non-experimental libc. Aside from that, I have no clue. I know dozens of people who use this same setup, and they all work out fine. Did you compile everything together yourself? What happense when you remove mod_perl or mod_ssl? Maybe you should wait for openSSL to actually be released. -jwb apache 1.3.9 mod_perl 2.21 mod_ssl 2.2.4 openssl 0.9.4 CGI.pm 2.56 Oracle 8.0.5 DBD::Oracle 1.03 DBI 1.13 XML::Parser 2.27 gcc 2.7.2.3 linux kernel 2.2.13 -- Radovan Semancik ([EMAIL PROTECTED]) System Engineer, Business Global Systems a.s. http://storm.alert.sk -- Jeffrey W. Baker * [EMAIL PROTECTED] Critical Path, Inc. * we handle the world's email * www.cp.net 415.808.8807
RE: Embperl and StarOffice problem
I am currently using the StarOffice HTML editor to edit my Embperl programs. The problem I have is that it generates HTML that separates lines exceeding 80 characters with a newline. This 'readability' feature has the effect of separating my perl comments into two lines, which creates syntax errors on my perl code because the HTML tag remover in Embperl will leave the extra newlines in place, making the right end of my comment lines appear as barewords. You may use the [# #] block for longer comments My comment lines are shorter than 80 chars, but the HTML generator is stupid and will always precede them with long useless tags. This shouldn't be a problem, because as long as the tags are inside a perl block they should be removed by Embperl, before the perl code is compiled I'm using Embperl 1.2b7. Would this be a bug in Embperl, or has the tag remover been kept simple for performance reasons? If the removeing of tags doesn't work as you expect, please send me an example of what you type, what StarOffice creates out of it and what errors you get. Gerald --- Gerald Richter ecos electronic communication services gmbh Internet - Infodatenbanken - Apache - Perl - mod_perl - Embperl E-Mail: [EMAIL PROTECTED] Tel:+49-6133/925151 WWW:http://www.ecos.de Fax:+49-6133/925152 ---
Re: embperl - EMBPERL_MAIL_ERRORS_TO - trigger
I would like to be able to trigger an "error" so that the log section associated with that embperl session gets mailed to me when that session closes. This is for errors in my logic or processing problems which are not fatal enough to cause embperl to fail on its own. You can trigger an "error" with "die", but I am not sure if this is what you want... The EMBPERL_MAIL_ERRORS_TO will mail you some information about the request (%fdat, %udat, %ENV, @errors), but not the logfile. Gerald --- Gerald Richter ecos electronic communication services gmbh Internet - Infodatenbanken - Apache - Perl - mod_perl - Embperl E-Mail: [EMAIL PROTECTED] Tel:+49-6133/925151 WWW:http://www.ecos.de Fax:+49-6133/925152 ---
Re: Apache::ASP
Andrew Mayo wrote:
We are trying to store references in session variables but for some reason
this does not work. The reference cannot be regained.
For example, in simple Perl I can create an array containing two anonymous
hashes, then place a reference to this array in
$d, then dereference $d to recover the array.
@c[0]={'k1','v1','k2','v2'};
@c[1]={'k3','v3','k4','v4'};
$d=\@c;
print $$d[0]{'k1'},"\n";
@e=@$d;
print $e[0]{'k1'},"\n";
The Apache::ASP $Session object is tied to a SDBM_File or DB_File via MLDBM
Data::Dumper. Therefore you cannot simply store a reference using "\@c" and
expect it to dereference next time. Use an anonymous array [] or anonymous
hash {}.
Try this:
@c[0]={'k1','v1','k2','v2'};
@c[1]={'k3','v3','k4','v4'};
$Session-{'array'} = [ @c ];
print $Session-{'array'}-[0]-{'k1'},"\n";
@e = @{$Session-{'array'}};
print $e[0]{'k1'},"\n";
DBI handles should be storable also, just be sure to use anonymous hash
syntax, since they are blessed hashes.
- Adi
Re: Apache::ASP
Adi wrote:
Andrew Mayo wrote:
We are trying to store references in session variables but for some reason
this does not work. The reference cannot be regained.
For example, in simple Perl I can create an array containing two anonymous
hashes, then place a reference to this array in
$d, then dereference $d to recover the array.
@c[0]={'k1','v1','k2','v2'};
@c[1]={'k3','v3','k4','v4'};
$d=\@c;
print $$d[0]{'k1'},"\n";
@e=@$d;
print $e[0]{'k1'},"\n";
The Apache::ASP $Session object is tied to a SDBM_File or DB_File via MLDBM
Data::Dumper. Therefore you cannot simply store a reference using "\@c" and
expect it to dereference next time. Use an anonymous array [] or anonymous
hash {}.
Try this:
@c[0]={'k1','v1','k2','v2'};
@c[1]={'k3','v3','k4','v4'};
$Session-{'array'} = [ @c ];
print $Session-{'array'}-[0]-{'k1'},"\n";
@e = @{$Session-{'array'}};
print $e[0]{'k1'},"\n";
DBI handles should be storable also, just be sure to use anonymous hash
syntax, since they are blessed hashes.
...
Thanks for answering this Adi. Andrew, in general,
read up in Apache::ASP docs perldoc MLDBM for
how $Session $Application are limited when storing data.
To clarify, DBI handles are not storable in $Session,
because they often have per process file handles such which
will not be preserved across requests. Use Apache::DBI to
keep your database connections persistent per process.
-- Joshua
_
Joshua Chamas Chamas Enterprises Inc.
NodeWorks free web link monitoring Huntington Beach, CA USA
http://www.nodeworks.com1-714-625-4051
mod_perl list(s) administrativa (was: OT: database redundancy in web env)
On Wed, 3 Nov 1999, Renzo Toma wrote: I love to hear from Ask, imdb guys (Rob you alive?!) or anyone else offcourse how they maintain ~100% uptime. And again sorry for the off-topic. Please please please take it somewhere else, maybe the DBI list as you suggested yourself. I would be happy to answer there, or anywhere, just not here. Somewhat related: This list will soon move to an ezmlm setup and move to @perl.apache.org. Suggestions for what the new list should be called would also be appreciated. Brian suggested [EMAIL PROTECTED], I don't like that so if I don't get any good suggestions I will probably call it [EMAIL PROTECTED] I think that I at the same time will create [EMAIL PROTECTED] (for HTML::Embperl) and [EMAIL PROTECTED] (for Apache::ASP) and decree those topics off-topic here, if nobody comes with very good arguments. It is not because I don't like Embperl or Apache::ASP, it's just two large chunks of traffic that it would make sense to separate out. Other suggestions for splitting up the traffic would be more than welcome. We need to get the traffic on this list down or I will never be able to catch up again. Reply to me and *not* to the list on this, please. - ask PS. The short answer for the database question: avoid "online" database lookups, or do mirroring (which sometimes can be a lot easier than it might seem). PPS. We were actually down @valueclick.com for some minutes some weeks ago. :-) -- ask bjoern hansen - http://www.netcetera.dk/~ask/ more than 60M impressions per day, http://valueclick.com
Re: mod_perl and DBI
I'm making a first attempt to run a working Perl CGI run under mod_perl. It uses perl dbi successfully under CGI. When invoking the script under mod_perl, I get the following error: [Tue Nov 2 11:49:43 1999] [error] Can't load '/usr/lib/perl5/site_perl/5.005/i386-linux/auto/DBI/DBI.so' for module DBI: /usr/lib/perl5/site_perl/5.005/i386-linux/auto/DBI/DBI.so: undefined symbol: PL_dowarn at /usr/lib/perl5/5.00503/i386-linux/DynaLoader.pm line 169. Would someone kindly point me in the right direction? http://perl.apache.org/guide/warnings.html#Can_t_load_auto_DBI_DBI_so_ Thanks, Dan ___ Stas Bekman mailto:[EMAIL PROTECTED]www.singlesheaven.com/stas Perl,CGI,Apache,Linux,Web,Java,PC at www.singlesheaven.com/stas/TULARC www.apache.org www.perl.com == www.modperl.com || perl.apache.org single o- + single o-+ = singlesheavenhttp://www.singlesheaven.com
Re: Failing to reconnect after Oracle shutdown abort (Apache::D BI)
"Young, Geoffrey S." [EMAIL PROTECTED] writes: Incidentally, I have also noticed that on my Linux installation Oracle will not shutdown (or shutdown abort) while any of the httpd processes have persistent connections. That is, httpd must come down first for Oracle to shutdown cleanly. Just thought I'd mention it... There are different kinds of shutdowns shutdown - waits for every connection to disconnect shutdown immediate - cleans up partially executed transactions shutdown abort - leaves dirty blocks on disk which get cleaned up as needed Shutdown immediate can take a while to execute but shutdown abort should be fast. According to people on comp.databases.oracle.server unless you plan to do a backup you can just use shutdown abort. A plain shutdown is useless for web server databases unless you shut down every client including the web server first, and even then it doesn't always seem to work. In our experience pmon sometimes goes wonky if you shutdown abort and then bring the database up. Tech support told us to shutdown abort, bring up the database, then shutdown immediate and bring it up again. The second shutdown cleans up the dirty blocks. I'm not sure if this is just superstition or actually helps but that's what we do now. -- greg
RE: Failing to reconnect after Oracle shutdown abort (Apache::DBI)
I can second that... I've had the listener time out and the httpd process never picks up a new connection. I have also seen where a perl script encounters an OCI error (usually my fault ;) after the connection and the httpd child can never connect again. Incidentally, I have also noticed that on my Linux installation Oracle will not shutdown (or shutdown abort) while any of the httpd processes have persistent connections. That is, httpd must come down first for Oracle to shutdown cleanly. Just thought I'd mention it... --Geoff -Original Message- From: Greg Stark [SMTP:[EMAIL PROTECTED]] Sent: Tuesday, November 02, 1999 4:39 AM To: Tim Bunce Cc: mod-perl Mailing List; DBI Users Mailing List Subject: Re: Failing to reconnect after Oracle "shutdown abort" (Apache::DBI) Tim Bunce [EMAIL PROTECTED] writes: Has anyone experienced a situation where a process (httpd for example) can't reconnect to Oracle after a "shutdown abort"? Tim. As far as I can tell we never get a clean reconnection after any sort of connection problem. I don't even think it takes a shutdown abort to cause this. -- greg
Re: Failing to reconnect after Oracle shutdown abort (Apache::DBI)
On Mon, Nov 01, 1999 at 09:01:48PM +, Tim Bunce wrote: Has anyone experienced a situation where a process (httpd for example) can't reconnect to Oracle after a "shutdown abort"? Thanks for your replies. The problem reported to me which prompted this email has actually proven to be a user script error. The old database handle was being reused, rather than the new one returned from a fresh call to DBI-connect after the shutdown and restart. I'd be interested in seeing a DBI trace file (level 2) from anyone else who thinks they have this problem. Please send me (directly, not to the list) _just_ the part of the log that shows the original connect, the point of failure (from the shutdown etc) and the failed attempt to reconnect. Don't send the whole log. Tim.
Re: Failing to reconnect after Oracle shutdown abort (Apache::DBI)
Greg Stark wrote: Tim Bunce [EMAIL PROTECTED] writes: Has anyone experienced a situation where a process (httpd for example) can't reconnect to Oracle after a "shutdown abort"? Tim. As far as I can tell we never get a clean reconnection after any sort of connection problem. I don't even think it takes a shutdown abort to cause this. The project I am currently working on has always managed to reconnect after all sorts of database problems. I don't know if Oracle was ever killed with "shutdown abort" though. Could you elaborate on exactly what kind of project you are building and how the problem is manifested? We are doing web stuff with Apache, mod_perl, and DBI. -jwb
Re: Failing to reconnect after Oracle shutdown abort (Apache::DBI)
Greg Stark wrote:
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*** DBI Home Page - http://www.symbolstone.org/technology/perl/DBI/ ***
Tim Bunce [EMAIL PROTECTED] writes:
On Mon, Nov 01, 1999 at 09:01:48PM +, Tim Bunce wrote:
Has anyone experienced a situation where a process (httpd for example)
can't reconnect to Oracle after a "shutdown abort"?
Thanks for your replies.
The problem reported to me which prompted this email has actually
proven to be a user script error. The old database handle was being
reused, rather than the new one returned from a fresh call to
DBI-connect after the shutdown and restart.
With a web server you always want to reuse the database handle as long as
possible. That's true of any long-running application though.
How is the application supposed to know it has been disconnected?
Maybe the driver should (maybe optionally) automatically reconnect?
That's what the driver handle's ping method is for.
if (!$dbh-ping) { reconnect; }
-jwb
--
Jeffrey W. Baker * [EMAIL PROTECTED]
Critical Path, Inc. * we handle the world's email * www.cp.net
415.808.8807
