CPAN installs module and doesn't see it after...cpan database issue? - database

Question

I have this issue with some Perl modules on Fedora Linux. They are installed correctly and not show up in the list after.
For example I run:
cpan XML::SAX::Base
it produced lengthy output like:
-------------------------------------------------
Reading '/root/.cpan/Metadata'
Database was generated on Tue, 12 Aug 2014 23:41:02 GMT
Running install for module 'XML::SAX::Base'
Running make for G/GR/GRANTM/XML-SAX-Base-1.08.tar.gz
Checksum for /root/.cpan/sources/authors/id/G/GR/GRANTM/XML-SAX-Base-1.08.tar.gz ok
CPAN.pm: Building G/GR/GRANTM/XML-SAX-Base-1.08.tar.gz
Checking if your kit is complete...
Looks good
Writing Makefile for XML::SAX::Base
Writing MYMETA.yml and MYMETA.json
cp lib/XML/SAX/Base.pm blib/lib/XML/SAX/Base.pm
cp lib/XML/SAX/Exception.pm blib/lib/XML/SAX/Exception.pm
cp BuildSAXBase.pl blib/lib/XML/SAX/BuildSAXBase.pl
Manifying blib/man3/XML::SAX::Exception.3pm
Manifying blib/man3/XML::SAX::BuildSAXBase.3pm
Manifying blib/man3/XML::SAX::Base.3pm
GRANTM/XML-SAX-Base-1.08.tar.gz
/usr/bin/make -- OK
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/00basic.t ............. ok
t/01exception.t ......... ok
t/01simpledriver.t ...... ok
t/02simplefilter.t ...... ok
t/03chdriver.t .......... ok
t/04chfilter.t .......... ok
t/05dtdhdriver.t ........ ok
t/06lexhdriver.t ........ ok
t/07declhdriver.t ....... ok
t/08errorhdriver.t ...... ok
t/09resoldriver.t ....... ok
t/10dochdriver.t ........ ok
t/11sax1multiclass.t .... ok
t/12sax2multiclass.t .... ok
t/13handlerswitch.t ..... ok
t/14downstreamswitch.t .. ok
t/15parentswitch.t ...... ok
t/16gethandlers.t ....... ok
t/release-pod-syntax.t .. skipped: these tests are for release candidate testing
All tests successful.
Files=19, Tests=137, 1 wallclock secs ( 0.09 usr 0.03 sys + 0.61 cusr 0.11 csys = 0.84 CPU)
Result: PASS
GRANTM/XML-SAX-Base-1.08.tar.gz
/usr/bin/make test -- OK
Running make install
Manifying blib/man3/XML::SAX::Exception.3pm
Manifying blib/man3/XML::SAX::BuildSAXBase.3pm
Manifying blib/man3/XML::SAX::Base.3pm
Appending installation info to /root/perl5/lib/perl5/x86_64-linux-thread-multi/perllocal.pod
GRANTM/XML-SAX-Base-1.08.tar.gz
/usr/bin/make install -- OK
--------------------------------------------
Looks like the module installed. When I run:
cpan -l | grep SAX
it gives nothing.
If I run installation again:
cpan XML::SAX::Base
it will install it again.
I guess something wrong with the database, is there any way to fix it?

Answer 1

Finally, I was able to fix this problem. As I understand, the whole problem was in installation of different parts of Perl in different folders. For example, I had /root/perl5 folder and /home/user1/perl5 folder.I was not able to install modules as a non-root user. I had to switch to root any time, I was installing any module. Then I had to switch back to user when I was creating perl script. Now I moved everything to normal user and it's finally working.
That is how I did it:
First under root:
su - ;
rm -fr /home/user/perl5/ ;
mv -f perl5 /home/user/ ;
chown -fR user /home/user/perl5 ;
chgrp -fR user /home/user/perl5 ;
exit `
Second under user:
PATH=$PATH:/home/user/perl5/bin;
export PERL5LIB=/home/user/perl5/lib/perl5/;
Those two commands you need to enter every time after reboot or use ~/.bashrc
Now I can do either cpan XML::SAX::Base or cpanm XML::SAX::Base and it is all good and I don't need to switch to root any more every time I install modules!!!