Hello fellow Eprinters,

We’ve been running Eprints 3.3.13 and a modified “lift_embargos” script for quite some time without any issue. But we noticed lately that the script has stopped working. It seems that it is now unable to commit any changes. Running in debug mode, I can see that the script fails after calling the “$doc->commit(1)” line:

Lifting expired embargo on eprint #2957, document #41378 (2019-11-19)

main::CODE(0x999baa0)(lift_embargos:149):

149:            if( !$dryrun )

150:            {

main::CODE(0x999baa0)(lift_embargos:151):

151:                    $doc->set_value( "security", "public" );

main::CODE(0x999baa0)(lift_embargos:152):

152:                    $doc->set_value( "date_embargo", undef );

main::CODE(0x999baa0)(lift_embargos:154):

154:                    $doc->commit( 1 ); # pass force through to parent eprint

Use of uninitialized value in string ne at (eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19] line 48.

at (eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19] line 48.

        EPrints::Config::Ecole::__ANON__[(eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19]:68]('EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/Repository.pm line 1726

        eval {...} called at /usr/share/eprints/bin/../perl_lib/EPrints/Repository.pm line 1726

        EPrints::Repository::call('EPrints::Repository=HASH(0x4654aa0)', 'set_document_automatic_fields', 'EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/DataObj.pm line 463

        EPrints::DataObj::update_triggers('EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/DataObj/Document.pm line 1217

        EPrints::DataObj::Document::commit('EPrints::DataObj::Document=HASH(0x9a2f8f0)', 1) called at lift_embargos line 154

        main::__ANON__[lift_embargos:184]('EPrints::Repository=HASH(0x4654aa0)', 'EPrints::DataSet=HASH(0x57200e8)', 'EPrints::DataObj::Document=HASH(0x9a2f8f0)', undef) called at /usr/share/eprints/bin/../perl_lib/EPrints/List.pm line 664

        EPrints::List::map('EPrints::List=HASH(0x2ff0af8)', 'CODE(0x999baa0)') called at lift_embargos line 184

Can't call method "current_repository" on an undefined value at /usr/share/eprints/bin/../perl_lib/EPrints/BackCompatibility.pm line 443.

Looking at the code, I can see that the session information is passed to the other functions, but it doesn’t seem to be working anymore as the session is undefined when calling the method “current_repository” on line 443 of BackCompatibility.pm:

return $EPrints::HANDLE->current_repository;

The only thing that changed in the last few weeks has been a server upgrade (not sure what was the previous version but we are now running on CentOS 7 with Perl 5.16.3 and Apache 2.4.6). Using the workflow to commit changes still work without any issue.

Has anyone encountered this error before? Could this be related to Perl or Apache’s configuration?

Thank you for your input on this issue!