Unable to use DBD::Oracle from Apache/Mod_Perl

Question

Env:

Red Hat Enterprise Linux Server release 6.4 
Apache/2.2.15 (Unix) mod_perl/2.0.4 Perl/v5.10.1
Perl v5.10.1 (*) built for x86_64-linux-thread-multi
64 bit Oracle client for 11.2
DBD::Oracle : Oracle Driver for DBI ; P/PY/PYTHIAN/DBD-Oracle-1.64.tar.gz : /usr/local/lib64/perl5/DBD/Oracle.pm : Installed: 1.64 
/home/oracle/app/oracle/product/11.2.0/client_1/lib/libclntsh.so.11.1: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, not stripped 
-rwxr-xr-x. 1 oracle oracle 48725761 Jun 10 17:41 /home/oracle/app/oracle/product/11.2.0/client_1/lib/libclntsh.so.11.1

Startup.pl

use lib qw(/home/oracle/app/oracle/product/11.2.0/client_1/lib);
BEGIN {
    $ENV{ORACLE_HOME}     = '/home/oracle/app/oracle/product/11.2.0/client_1';
    $ENV{LD_LIBRARY_PATH} = '/home/oracle/app/oracle/product/11.2.0/client_1/lib';
    $ENV{ORACLE_SID}      = 'MARS';
}
print STDERR "\nORACLE_HOME = " . $ENV{'ORACLE_HOME'} . "\n";
print STDERR "\nLD_LIBRARY_PATH = " . $ENV{'LD_LIBRARY_PATH'} . "\n";

use mod_perl2;
use Apache::DBI ();
use DBI ();
use DBD::Oracle;

BEGIN { use Data::Dumper; print STDERR Dumper(\@INC); }
print STDERR "ModPerl2 Startup.pl\n";
foreach ( keys %ENV ) {
    print STDERR "$_\t$ENV{$_}\n";
}
1;

Apache conf

PerlRequire /var/www/cgi-bin/startup.pl
SetEnv ORACLE_HOME "/home/oracle/app/oracle/product/11.2.0/client_1"
SetEnv LD_LIBRARY_PATH "/home/oracle/app/oracle/product/11.2.0/client_1/lib"

Error:

Can't load '/usr/local/lib64/perl5/auto/DBD/Oracle/Oracle.so' for module DBD::Oracle: libclntsh.so.11.1: cannot open shared object file: No such file or directory at /usr/lib64/perl5/DynaLoader.pm line 200.\n at /var/www/cgi-bin/startup.pl line 17\nCompilation failed in require at /var/www/cgi-bin/startup.pl line 17.\nBEGIN failed--compilation aborted at /var/www/cgi-bin/startup.pl line 17.\nCompilation failed in require at (eval 2) line 1.\n

Startup.pl works when run from the command line, but fails to load through Apache

Things already tried

• Setting env variables in Apache conf (shown above)
• Checking file permisison for oracle libraries
• Printing env variables from command line and comparing with the output when running from Apache (after removing DBD::Oracle)
• Making sure all of Perl, Apache, Oracle, DBD:Oracle are for 64 bit
• Adding /home/oracle/app/oracle/product/11.2.0/client_1/lib to /etc/ld.so.conf and running ldconf

Answer 1

That error comes from Apache being unable to find the Oracle installation. Put your Oracle $PATH env vars in the bin/envvars file, like so:

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
# envvars-std - default environment variables for apachectl
#
# This file is generated from envvars-std.in
#
ORACLE_HOME="/home/oracle/app/oracle/product/11.2.0/client_1"
LD_LIBRARY_PATH="/home/oracle/app/oracle/product/11.2.0/client_1/lib"

export LD_LIBRARY_PATH ORACLE_HOME

Answer 2

Your DBD::Oracle was built against 11.1 as evidenced by the error message, and it is looking for a specifically named/versioned .so file ("libclntsh.so.11.1").

Your runtime, however, is configured for 11.2, as evidenced by your paths, and does not supply that specifically named/versioned .so file.

Rebuild DBD::Oracle for your preferred runtime configuration and go from there.

Answer 3

It can well be a selinux issue. If your script runs well from shell but not from apache, try to disable selinux.

If it helps, you'd better CONFIGURE selinux instead of just disabling it.

Answer 4

Had the same error message on RHEL (5, 6 and 7). This is what finally fixed it for me:

echo $ORACLE_HOME/lib >> /etc/ld.so.conf
/sbin/ldconfig
service httpd stop; service httpd start