Perl DBD::Oracle Module installation - perl

Could someone guide me how to install the Perl DBD::Oracle module?
Here is what I have done so far:
Platform: RHEL 5.8 64 bit
Installed Perl DBI package
Installed Oracle Instant client for Linux 64 bit (basi + sdk + sqlplus component for the instant client
Have set the correct $ORACLE_HOME and $LD_LIBRARY_PATH
Then when I do perl Makefile.pl it fails with the following error:
I'm having trouble finding your Oracle version number... trying harder
WARNING: I could not determine Oracle client version so I'll just
default to version 8.0.0.0. Some features of DBD::Oracle may not work.
Oracle version based logic in Makefile.PL may produce erroneous results.
You can use "perl Makefile.PL -V X.Y.Z" to specify a your client version.
Oracle version 8.0.0.0 (8.0)
DBD::Oracle no longer supports Oracle client versions before 9.2
Try a version before 1.25 for 9 and 1.18 for 8! at Makefile.PL line 271.
The instant client version: 11.1.0
The DBD::Oracle version is 1.44
If you have installed successfully with the Oracle instant client, then could you please let me know what am I missing?
Is it possible to install DBD::Oracle without using the Oracle instant client?

Install if missing ExtUtils-MakeMaker module (sudo yum install perl-ExtUtils-MakeMaker)
Install Perl DBI module ($ yum install perl-DBI)
Manually install below three RPMs for Oracle instant client (from Instant Client Downloads for Linux x86-64. The example is for v11.2.0.3.0-1: adapt the commands below to the actual version.)
oracle-instantclient11.2-basic-11.2.0.3.0-1
oracle-instantclient11.2-devel-11.2.0.3.0-1
oracle-instantclient11.2-sqlplus-11.2.0.3.0-1
I am using 64 bit Linux box, so select your RPM filenames accordingly. Something like sudo yum -y install oracle-instantclient*rpm should do)
set below variables:
export LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib
export ORACLE_HOME=/usr/lib/oracle/11.2/client64
MacOS users will need:
DYLD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/
Also add ORACLE_HOME to your PATH variable.
download DBD::Oracle from CPAN
untar the module and run below commands in given sequence:
perl Makefile.PL
make
sudo make install
In case you get complaints about missing gcc you can (temporarily) install it and then remove it.
DONE !!!
Issues I had faced were due to the wrong LD_LIBRARY_PATH. I had set it to /usr/lib/oracle/11.2/client64 whereas the correct value is /usr/lib/oracle/11.2/client64/lib.
Certainly, this was a great learning for a newbie like me.

you can also read my article How to install DBD::Oracle which contains all the steps required to install DBD::Oracle CPAN module, which is not a straightforward installation. The purpose is to reduce headache and turn it into a repeatable process.

Here's what I did on CentOS 7.2 using yum packages and CPAN. This assumes you're using Oracle version 12.1 but I would imagine most versions will work this way.
Install Oracle Instant Client
yum install oracle-instantclient12.1-basic-12.1.0.2.0-1 oracle-instantclient12.1-devel-12.1.0.2.0-1 oracle-instantclient12.1-sqlplus-12.1.0.2.0-1
Copy demo make files
The install expects the *.mk file to be in /usr/share/oracle/12.1/client64 but the yum package install puts them in /usr/share/oracle/12.1/client64/demo.
sudo cp /usr/share/oracle/12.1/client64/demo/* /usr/share/oracle/12.1/client64
Modify .bashrc
Add the following lines to your ~/.bashrc
export ORACLE_HOME=/usr/lib/oracle/12.1/client64
export LD_LIBRARY_PATH=/usr/lib/oracle/12.1/client64/lib
export PATH=$ORACLE_HOME:$PATH
Now source the file
source ~/.bashrc
Update CPAN and DBI
Update CPAN and DBI to the latest
cpan> install CPAN
cpan> reload cpan
cpan> install DBI
Install DBD::Oracle
cpan> install DBD::Oracle

A little addition to slayedbylucifer answer. I had the same problem like mentioned in the question. I've done all the steps described by slayedbylucifer. But still I got the problem like mentioned here:
/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /opt/oracle/app/oracle/product/11.2.0/client_1/lib//libclntsh.so when searching for -lclntsh
/usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld: cannot find -lclntsh
So I created the following symbolic link:
ln -s /opt/oracle/app/oracle/product/<YOUR_ORACLE_VERSION>/client_1/lib/libclntsh.so $ORACLE_HOME/libclntsh.so*
After that step the error from above (cannot find -lclntsh) was fixed. The execution of the make command was without any errors.
The only problem I still have is that I don't understand why this symbolic link is necessary.

Related

Why doesn't perl find my installed SSH2 module?

So I am trying to run a perl script on my Centos machine. I have tried on Centos 5,6,7 with no success. Every time I run the script I get this:
Can't locate Net/SSH2.pm in #INC (#INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .)
I have installed libssh2
Package libssh2-1.4.3-12.el7.x86_64 already installed and latest version
I have tried using cpan but no matter what I do it doesn't seem to work.
I just don't understand why perl isn't finding the module... Am I missing something?
If somebody could guide me to actually installing the SSH2 module because I have looked everywhere and nothing seems to work.
Thanks in advance.
UPDATE:
When I try to install via cpan:
cpan[1]> install Net::SSH2
Reading '/root/.cpan/Metadata'
Reading '/root/.cpan/sources/authors/01mailrc.txt.gz'
........................................................................DONE
Reading '/root/.cpan/sources/modules/02packages.details.txt.gz'
Database was generated on Fri, 04 Jan 2019 22:17:03 GMT
HTTP::Date not available
.............
New CPAN.pm version (v2.22) available.
[Currently running version is v1.9800]
You might want to try
install CPAN
reload cpan
to both upgrade CPAN.pm and run the new version without leaving
the current session.
........................................Killed
Still getting the same error...
libssh is the C library for SSH. Net::SSH2 is a Perl module. They are different piece of software (although Net::SSH2 probably depends on libssh).
You need to install Net::SSH2.
See What's the easiest way to install a missing Perl module?
As Quentin mentioned in his answer, libssh2 is the C library for SSH, whereas Net::SSH2 is a Perl module. Since Net::SSH2 will be installed from source (which is what the cpan command does in the background), you will need to ensure that a few prerequisites are installed:
sudo yum install libssh2 libssh2-devel gcc
The libssh2 package was added to this list for completeness. The development package for libssh2 (libssh2-devel) as well as gcc (a C compiler) are required, since the process of installing Net::SSH2 from source requires a library to be built so that Net::SSH2 can talk to libssh2.
When Perl modules are installed from source, the module's test suite is run by default to check that everything is ok before actually running the install step. Hence, you will need to ensure that perl-Test-Simple is installed, since Net::SSH2 uses this to run its tests:
sudo yum install perl-Test-Simple
I personally find it much easier to install Perl modules via cpanm than cpan, thus I recommend installing it (it's available as a yum package):
sudo yum install perl-App-cpanminus
Now the installation of Net::SSH2 should be as simple as:
cpanm Net::SSH2
If you want to install the module system-wide, then you will need to prefix the cpanm call with sudo:
sudo cpanm Net::SSH2

Install perl module Net:SSH2 on redhat/centos 7

As the title says I am trying to install the perl module perl-Net-SSH2. I have tried via yum but get an error that no package is available.
yum install perl-Net-SSH2
I have tried by downloading an rpm file but the only one I can find is for el6 and it complains about the version of perl
yum localinstall perl-Net-SSH2-0.45-4.el6.x86_64.rpm
Requires: perl(:MODULE_COMPAT_5.10.1)
I have tried downloading the source code but get told "Unable to find a working version of library ssh2 in the following directories" even though it is installed. (via yum install libssh2 libssh2-devel)
I have tried via cpan but get the same error "Unable to find a working version of library ssh2 in the following directories"
Any ideas? Google is very sketchy on this and only
OK, I solved this while writing the question. Seeing as information on this is limited I thought it would be worth posting the question anyway. The error message was giving the wrong information in that it was actually gcc that was missing, not libssh2. These are the steps I followed. I've tried to make it as verbatim as possible. I have not verified all these modules are required but this is what I installed before compiling it.
yum install libssh2 libssh2-devel
yum install openssl openssl-devel
yum install perl-Net-SSLeay
yum install gcc
Search for Net::SSH2 in google
Click the link "Net::SSH2 - search.cpan.org"
Download source code (tar.gz file)
Copy it to your redhat 7 machine
tar -xvf Net-SSH2-0.62.tar.gz
cd Net-SSH2-x.xx
perl Makefile.PL
make
make install
Should all be working now, test it with
perl -e 'use Net::SSH2;'

Need help for installing LDAP in unix

I am following the below procedure for installing LDAP in unix
1.tar -xzf perl-ldap-0.43.tar.gz
2.cd perl-ldap-0.43
3.perl MakeFile.PL
I am getting below message
* Checking for Perl dependencies...
We have to reconfigure CPAN.pm due to following uninitialized parameters:
cpan_home, keep_source_where, build_dir, build_cache, scan_cache, index_expire, gzip, tar, unzip, make, pager, makepl_arg, make_arg, make_install_arg, urllist, inhibit_startup_message, ftp_proxy, http_proxy, no_proxy, prerequisites_policy, cache_metadata
CPAN is the world-wide archive of perl resources. It consists of about
100 sites that all replicate the same contents all around the globe.
Many countries have at least one CPAN site already. The resources
found on CPAN are easily accessible with the CPAN.pm module. If you
want to use CPAN.pm, you have to configure it properly.
If you do not want to enter a dialog now, you can answer 'no' to this
question and I'll try to autoconfigure. (Note: you can revisit this
dialog anytime later by typing 'o conf init' at the cpan prompt.)
Are you ready for manual configuration? [yes]
How to install without CPAN and what are the dependent modules required to install Ldap?
Can anyone suggest me the standard process of installation.
Thanks In Advance
I assume that by perl-ldap-0.43.tar.gz you are trying to install Net::LDAP
How to install without CPAN?
CPAN is the recommended way of installing Perl modules. You have to configure it just once, after that if you need to install any Perl module you can just type the below.
$ cpan ModuleName like in your case instead of downloading, untaring and running makefile you can just do:
$ cpan Net::LDAP
What are the dependent modules required to install Ldap?
One more advantage of using CPAN is you don't have to care about dependencies. CPAN will install dependencies automatically if you ask it to do so. Do it by
$ perl -MCPAN -e shell
cpan[1]> o conf prerequisites_policy follow
cpan[2]> o conf commit
exit
Or just use App::cpanminus and run
$ cpanm Net::LDAP it will install the module with all its dependencies.
Also check out Perl LDAP page.
Edit: Based on your answer
You will get some errors like above, you will have to see the error log, check the Module which is missing, then go to CPAN and download that module's tar.gz and then do the same steps as you were doing, like untaring, and running Makefile. You will have to do this unless all of your dependencies are installed.
Can we ignore warnings while installing perl modules?
I have installed ExtUtils-MakeMaker-6.98.tar.gz by ignoring below warnings
Using included version of ExtUtils::Install (1.54) as it is newer than the installed version (1.33).
Using included version of CPAN::Meta::YAML (0.008) because it is not already installed.
Using included version of JSON::PP::Compat5006 (1.09) because it is not already installed.
Using included version of ExtUtils::Manifest (1.60) as it is newer than the installed version (1.46).
Using included version of version (0.88) because it is not already installed.
Using included version of ExtUtils::Command (1.16) as it is newer than the installed version (1.09).
Using included version of CPAN::Meta (2.120351) because it is not already installed.
Using included version of JSON::PP (2.27203) because it is not already installed.
Using included version of File::Temp (0.22) as it is newer than the installed version (0.16).
Using included version of Parse::CPAN::Meta (1.4405) because it is not already installed.
Using included version of File::Copy::Recursive (0.38) because it is not already installed.
Checking if your kit is complete...
Warning: the following files are missing in your kit:
't/liblist/win32/di
't/liblist/win32/space
Please inform the author.
Generating a Unix-style Makefile
Writing Makefile for ExtUtils::MakeMaker
Writing MYMETA.yml and MYMETA.json**
But I'm able to install successfully. Will it create any problems in future?

Redhat Linux 6.5 Perl GD CPAN Module yum

when i try to install "GD" (perl -e shell -MCPAN ->(next step) cpan[1]> install GD) on Redhat 6.5 i got the error:
->
CPAN.pm: Building L/LD/LDS/GD-2.53.tar.gz
UNRECOVERABLE ERROR
Could not find gdlib-config in the search path. Please install libgd 2.0.28 or higher.
If you want to try to compile anyway, please rerun this script with the option --ignore_missing_gd.
Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=site]
CPAN: YAML loaded ok (v0.90)
LDS/GD-2.53.tar.gz
/usr/bin/perl Makefile.PL INSTALLDIRS=site -- NOT OK
Running make test
Make had some problems, won't test
Running make install
Make had some problems, won't install
Could not read metadata file. Falling back to other methods to determine prerequisites
Failed during this command:
LDS/GD-2.53.tar.gz : writemakefile NO '/usr/bin/perl Makefile.PL INSTALLDIRS=site' returned status 512
<-
I tryed to install "libgd 2.0.28 or higher" but don't find this in "yum".
locate libgd (shows):
/usr/lib64/libgd.so.2
/usr/lib64/libgd.so.2.0.0
Does anyone know an advice?
Many perl modules are available already built and packaged for RHEL and derivatives such as CentOS. In the case of perl-GD, it seems it is available in the CentOS in the base repo even though it is not in the RHEL repo.
However you can still use the Centos repo by adding it to your yum configuration. Create a file /etc/yum.repos.d/cantos.repo containing:
[centos]
name=CentOS $releasever - $basearch
baseurl=http://mirror.centos.org/centos-6/6/os/$basearch/
enabled=0
gpgcheck=0
After which you should be able to install perl-GD
yum install --enablerepo centos perl-GD
It looks as though the current version of perl-GD for centos is 2.44.
If you do need a newer version that that, you will either need to find a 3rd party yum repo which has the later version of libgd available, or compile it from source. In a quick google I could not find the former, so I would recommend you download the latest source package and install that.
You need the package gd-devel then rebuild the GD module.

Why can't I install DBD::mysql so I can use it with Maatkit?

I'm trying to install Maatkit following the maatkit instructions. I can't get past having to install DBD::mysql. "Warning: prerequisite DBD::mysql 1 not found."
When I try to install DBD::mysql from cpan, I get very helpful "make had returned bad status, install seems impossible".
Perl is "v5.8.8 built for darwin-thread-multi-2level", the one that came with OS X. I also tried building from source with same result.
We need more of the error message. Most likely, you are missing the MySQL client development files. I don't know how to install these on OSX. Also see this older post on OSX 10.5.2 , in which some other failures with the mysql client libraries are found.
Possibly post this question with more parts of your error message at perlmonks.org, if stackoverflow doesn't allow for convenient pasting of your make session or rather the last 20 or 10 lines of it.
Some more Googling with site:perlmonks.org also finds this post which has some more details on things to watch out for when installing DBD::MySQL. Depending on how comfortable you feel with the installation, you might want to manually run the tests, supplying a test database and test user or even skip testing the module.
After a bit more googling, this worked for me:
sudo ln -s /usr/local/mysql/lib /usr/local/mysql/lib/mysql
sudo ln -s /usr/local/mysql/include /usr/local/mysql/include/mysql
sudo perl -MCPAN -e 'install Bundle::DBD::mysql'
press enter a bunch of times, then in your maatkit folder:
perl Makefile.PL
sudo make install
and you'll find the mk-* programs in /usr/local/bin/
You will want to install MySQL first. I usually use the binary packages they provide for OS X. The packages do include the headers and MySQL client libraries which DBD::MySQL requires. Once the MySQL package is installed, DBD::MySQL should install without issue.
Here is my output:
$ perl Makefile.PL
Checking if your kit is complete...
Looks good
Warning: prerequisite DBD::mysql 1 not found.
Writing Makefile for maatkit
$ mysql --version
mysql Ver 14.12 Distrib 5.0.51b, for apple-darwin9.0.0b5 (i686) using readline 5.0
I notice that there are in effect DBD::MySQL packages in the fink repositories. For example:
ayaz#ayazs-macbook$ fink list | grep -i 'dbd-mysql'
dbd-mysql-pm586 3.0008-10 Perl5 Database Interface to MySQL
dbd-mysql-pm588 3.0008-10 Perl5 Database Interface to MySQL
Perhaps installing through fink one of those packages may help alleviate your troubles.
Also, and I cannot be certain of this, you may want to install for MySQL-5.x (if you have that version installed) the mysql15-dev and mysql15-shlibs packages. I installed those through fink thus:
$ sudo fink --use-binary-dist install mysql15-dev