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Posted to modperl@perl.apache.org by Adam Cassar <ad...@netregistry.com.au> on 2000/02/17 23:48:00 UTC

Apache::Session::DBIStore and pgsql

Hello all,

I am experiencing a problem on several different machines  machine with
Apache::Session::DBI (however other methods work fine, ie ::FILE)

Searching back through the archives I have seen other issues with postgres
but not of this type or of this vintage.

When trying to create a new session using the postgres dbd driver I get the
following error:

DBD::Pg::st execute failed: ERROR:  parser: parse error at or near ""

If i try to run the perl debugger on it I find that the error occurs in the
insert method in DBIStore.pm

Attempting to print the query string works fine and I can do a manual insert
of the same data.

However if I enable DBI logging i get a query string similar to the following:

-> execute for DBD::Pg::st (DBI::st=HASH(0x81f5298)~0x81f51d8)
dbd_st_execute
dbd_st_execute: statement = >
INSERT INTO sessions (id, length, a_session) VALUES ('d729949384de79cf',41,'^C^C<
ERROR EVENT 7 'ERROR:  parser: parse error at or near ""
' on DBI::st=HASH(0x81f51d8)
ERROR:  parser: parse error at or near ""
error 7 recorded: ERROR:  parser: parse error at or near ""
!! ERROR: 7 'ERROR:  parser: parse error at or near ""
'
<- execute= undef at DBIStore.pm line 143.

Is Postgres getting confused by the session information in the last field?

I have no problems with DBI connections using perl and postgres

Perl Info Follows

version of Apache::Session: 1.03
version of DBI: 1.13
database Postgres 6.5.3, dbd driver version 0.93
mod_perl: 1.21
apache: 1.3.9

perl -v: 5.005_03

perl -V:

Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
  Platform:
    osname=linux, osvers=2.3.39, archname=i386-linux
    uname='linux samwise.tausq.org 2.3.39 #1 smp wed jan 12 05:59:50 mst 2000 i686 unknown '
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef useperlio=undef d_sfio=undef
  Compiler:
    cc='cc', optimize='-O2 ', gccversion=2.95.2 19991109 (Debian GNU/Linux)
    cppflags='-Dbool=char -DHAS_BOOL -D_REENTRANT -DDEBIAN -I/usr/local/include'
    ccflags ='-Dbool=char -DHAS_BOOL -D_REENTRANT -DDEBIAN -I/usr/local/include'
    stdchar='char', d_stdstdio=undef, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lndbm -lgdbm -ldbm -ldb -ldl -lm -lc -lposix -lcrypt
    libc=, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Built under linux
  Compiled at Jan 22 2000 10:24:15
  @INC:
    /usr/lib/perl5/5.005/i386-linux
    /usr/lib/perl5/5.005
    /usr/local/lib/site_perl/i386-linux
    /usr/local/lib/site_perl
    /usr/lib/perl5
    .


-- 

Adam Cassar
Senior Web Developer
___________________________________________
NetRegistry http://www.netregistry.com.au
Tel: +61 2 9699 6099 | Fax: +61 2 9699 6088
PO Box 270 Broadway NSW 2007 Australia

-- 

Adam Cassar
Senior Web Developer
___________________________________________
NetRegistry http://www.netregistry.com.au
Tel: +61 2 9699 6099 | Fax: +61 2 9699 6088
PO Box 270 Broadway NSW 2007 Australia


Re: Apache::Session::DBIStore and pgsql

Posted by Adam Cassar <ad...@netregistry.com.au>.
That did the trick!

Did you experience semaphore problems as well?

> see: http://www.postgresql.org/mhonarc/pgsql-general/1999-10/msg00245.html
> 
> I've also seen code that does a pack("H*", nfreeze $session->{data});
> 
> -- Wendell

-- 

Adam Cassar
Senior Web Developer
___________________________________________
NetRegistry http://www.netregistry.com.au
Tel: +61 2 9699 6099 | Fax: +61 2 9699 6088
PO Box 270 Broadway NSW 2007 Australia


Re: Apache::Session::DBIStore and pgsql

Posted by Wendell <we...@ccstrade.com>.
On Fri, Feb 18, 2000 at 09:48:00AM +1100, Adam Cassar wrote:
> Hello all,
> 
> I am experiencing a problem on several different machines  machine with
> Apache::Session::DBI (however other methods work fine, ie ::FILE)
> 
> Searching back through the archives I have seen other issues with postgres
> but not of this type or of this vintage.
> 
> When trying to create a new session using the postgres dbd driver I get the
> following error:
> 
> DBD::Pg::st execute failed: ERROR:  parser: parse error at or near ""
> 
> If i try to run the perl debugger on it I find that the error occurs in the
> insert method in DBIStore.pm
> 
> Attempting to print the query string works fine and I can do a manual insert
> of the same data.
> 
> However if I enable DBI logging i get a query string similar to the following:
> 
> -> execute for DBD::Pg::st (DBI::st=HASH(0x81f5298)~0x81f51d8)
> dbd_st_execute
> dbd_st_execute: statement = >
> INSERT INTO sessions (id, length, a_session) VALUES ('d729949384de79cf',41,'^C^C<
> ERROR EVENT 7 'ERROR:  parser: parse error at or near ""
> ' on DBI::st=HASH(0x81f51d8)
> ERROR:  parser: parse error at or near ""
> error 7 recorded: ERROR:  parser: parse error at or near ""
> !! ERROR: 7 'ERROR:  parser: parse error at or near ""
> '
> <- execute= undef at DBIStore.pm line 143.
> 
> Is Postgres getting confused by the session information in the last field?
> 
> I have no problems with DBI connections using perl and postgres

see: http://www.postgresql.org/mhonarc/pgsql-general/1999-10/msg00245.html

I've also seen code that does a pack("H*", nfreeze $session->{data});

-- Wendell