On 26/06/2013 19:35, Dan Bent wrote:
Big thanks!

I did this:
ldd
/opt/perl_32/lib/site_perl/5.8.8/PA-RISC1.1-thread-multi/auto/DBD/ODBC/ODBC.sl

and got:

  /usr/local/liant/lib/libodbc.sl.1 =>    /usr/local/liant/lib/libodbc.sl.1
         /usr/lib/libc.2 =>      /usr/lib/libc.2
         /usr/lib/libdld.2 =>    /usr/lib/libdld.2
         /usr/lib/libc.2 =>      /usr/lib/libc.2
         /usr/lib/libpthread.1 =>        /usr/lib/libpthread.1

hmm - never heard of "liant". It looks like the unixODBC driver manager but I've never seen it installed in that location. Also, I see you've got isql and that comes with unixODBC. Have you also got a binary called odbcinst and if you have output from odbcinst -j would be useful.


I tried isql -v prod1 username password

and it just hung like other attempts to access the database. No error
messages.

OK, so we've ruled out a change in Perl and DBI and DBD::ODBC as it is still going wrong without them. If this really is unixODBC you should have an odbc.ini and odbcinst.ini file probably in /usr/local/liant/etc or /usr/local/etc of /etc. What is in those files? There may also be a .odbc.ini in the users home dir.

When we see the contents of those files we'll have a better idea of what driver you are using and the shared library used so you can check that too to see if it has been updated.

You could enable unixODBC tracing but it rarely outputs much before connection is complete. I think you need to find the equivalent of strace on HPUX and run it on the isql command to see what system calls are being made.

Did you say everything is on one box, so networking off that box cannot be the issue?

Martin




On Wed, Jun 26, 2013 at 12:11 PM, Martin J. Evans <boh...@ntlworld.com
<mailto:boh...@ntlworld.com>> wrote:

    On 26/06/2013 17:28, Dan Bent wrote:

        I suddenly lost the ability to connect to my ODBC database
        yesterday,
        after years of using the same function to establish a connection:

        sub dbaseconnect {
              if (defined($testing)) {
                  if ($testing eq "YES") {
                      $dsn =  'dbi:ODBC:test1' ;
                      print "Using test database\n" ;
                  } elsif ($testing eq "TRAIN") {
                      $dsn =  'dbi:ODBC:train1' ;
                      print "Using train1 database\n" ;
                  } else {
                      $dsn =  'dbi:ODBC:prod1' ;
                  }
              } else {
                  $dsn =  'dbi:ODBC:prod1' ;
              }
              $user =  'USER' ;
              $passwd =  'PASSWORD' ;
              my %adrivers = DBI->available_drivers();
              print join(", ", %adrivers), "\n" ;

              print "connecting to DATABASE $dsn  $user $passwd\n" ;
              $dbh = DBI->connect($dsn, $user, $passwd,
                          {RaiseError => 1, AutoCommit => 0})
                  or die "Could not connect to database: " . DBI->errstr ;
              print "connected to DATABASE $dsn \n" ;
        }

        So, to gather information about where the failure is, I ran the
        following program:

        #! /usr/bin/perl

        use DBI ;
        use DBD::ODBC ;
        use strict ;
        use warnings ;

        print "Available Drivers: " ;
        my @adrivers = DBI->available_drivers();
        print join(", ", @adrivers), "\n" ;

        print "Data Sources: " ;
        foreach my $driver ( @adrivers ) {
              print "Driver: $driver\n";
              my @dataSources = DBI->data_sources( $driver );
              foreach my $dataSource ( @dataSources ) {
                  print "\tData Source is $dataSource\n";
              }
              print "\n";
        }

        and the output I got was:

        Available Drivers: DBM, ExampleP, File, ODBC, Proxy, Sponge
        Installed Drivers:
        Data Sources: Driver: DBM
                  Data Source is DBI:DBM:f_dir=.
                  Data Source is DBI:DBM:f_dir=CIGNA
                  Data Source is DBI:DBM:f_dir=Logs
                  Data Source is DBI:DBM:f_dir=ONCOURSE
                  Data Source is DBI:DBM:f_dir=autemp
                  Data Source is DBI:DBM:f_dir=config
                  Data Source is DBI:DBM:f_dir=fh.cob
                  Data Source is DBI:DBM:f_dir=perlscripts
                  Data Source is DBI:DBM:f_dir=pndspndwk
                  Data Source is DBI:DBM:f_dir=prgrun_dir
                  Data Source is DBI:DBM:f_dir=scripts

        Driver: ExampleP
                  Data Source is dbi:ExampleP:dir=.

        Driver: File
                  Data Source is DBI:File:f_dir=.
                  Data Source is DBI:File:f_dir=CIGNA
                  Data Source is DBI:File:f_dir=Logs
                  Data Source is DBI:File:f_dir=ONCOURSE
                  Data Source is DBI:File:f_dir=autemp
                  Data Source is DBI:File:f_dir=config
                  Data Source is DBI:File:f_dir=fh.cob
                  Data Source is DBI:File:f_dir=perlscripts
                  Data Source is DBI:File:f_dir=pndspndwk
                  Data Source is DBI:File:f_dir=prgrun_dir
                  Data Source is DBI:File:f_dir=scripts

        Driver: ODBC

        and the program just hangs when it looks for data sources using
        the ODBC
        driver. So, I suspect that there are issues with the ODBC
        driver. Here
        are the versions of the various DBI module components:

           perl -MDBI -e 'DBI->installed_versions'
            Perl            : 5.008008    (PA-RISC1.1-thread-multi)
            OS              : hpux        (11.00)
            DBI             : 1.50
            DBD::Sponge     : 11.10
            DBD::Proxy      : install_driver(Proxy) failed: Can't locate
        RPC/PlClient.pm in @INC
            DBD::ODBC       : 1.14
            DBD::File       : 0.33
            DBD::ExampleP   : 11.12
            DBD::DBM        : 0.03

        I imagine that I may not have the latest versions of everything, and
        updates are probably in order, but, while updates are desirable, I'd
        like to be sure that I'm addressing the root cause of the
        problem, so I
        get it resolved. This issue affects a lot of programs, and is
        critical
        to our business.
        Any help or suggestions will be greatly appreciated.


    You are in deed running VERY old versions - especially of DBD::ODBC.

    You first need to think about what Jonathan said - he's probably
    right that working out what changed yesterday is probably going to
    give the quickest result.

    Assuming you cannot find anything here are some suggestions.

    DBD::ODBC is usually linked to an ODBC driver manager but back in
    the days of 1.14 people still linked directly to an ODBC driver
    sometimes - ODBC drivers did not support enumerating DSNs - only the
    driver manager does that. So first thing is hwo was DBD::ODBC built?
    If you don't know that look for ODBC.so in your perl tree and run
    the HPUX equivalent of Linux's ldd command on it to find what
    libraries it depends on (right now I cannot remember what the
    command is).

    Once you've done that if the answer is libodbc.so.something then you
    are probably using the unixODBC driver manager. In that case you
    should hopefully have an isql binary and you should have an odbc.ini
    and odbcinst.ini defining your drivers and DSNs. What is in those
    files. Can you run:

    isql -v TEST1 username password
    isql -v TRAIN1 username password
    isql -v PROD1 username password

    as you didn't say which one you are using?

    If you get back with this info I'll help more.

    Martin
    --
    Martin J. Evans
    Wetherby, UK




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