Sorry for the double email.

  To debug, use free and the apache utility "ab" (with cookies for a
logged user test) to see how much load your server can handle.

  In my experience, a small/medium eprints installation need 8GB of RAM
and a good disk speed.

Il 16/06/20 10:10, Budiwijaya via Eprints-tech ha scritto:
> Hi Lists,
>
> Our repository sometimes having this error on the browser:
>
> *"Error calling df: Cannot allocate memory"*
>
> And checking on the log of the apache, I got this:
> ================
> [Tue Jun 16 03:58:30.265596 2020] [:error] [pid 6987:tid
> 139987773269760] Apache2::RequestIO::read: (70008) Partial results are
> valid but processing is incomplete at
>  (eval 685) line 5
> ------------------------------------------------------------------
> ---------------- EPrints System Error ----------------------------
> ------------------------------------------------------------------
> Error calling df: Cannot allocate memory
> ------------------------------------------------------------------
>  at /opt/eprints3/perl_lib/EPrints/System.pm line 349.
> EPrints::System::free_space('EPrints::System::linux=HASH(0x559787596f18)',
> '/opt/eprints3/archives/wiraraja/documents/disk0') called at
> /opt/eprints3/perl_li
> b/EPrints/BackCompatibility.pm line 467
> EPrints::Platform::free_space('/opt/eprints3/archives/wiraraja/documents/disk0')
> called at /opt/eprints3/perl_lib/EPrints/Repository.pm line 1851
> EPrints::Repository::get_store_dir('EPrints::Repository=HASH(0x5597864b7c78)')
> called at /opt/eprints3/perl_lib/EPrints/DataObj/EPrint.pm line 597
> EPrints::DataObj::EPrint::get_defaults('EPrints::DataObj::EPrint',
> 'EPrints::Repository=HASH(0x5597864b7c78)', 'HASH(0x5597831a9800)',
> 'EPrints::DataSet=HASH
> (0x55978814e1b0)') called at /opt/eprints3/perl_lib/EPrints/DataObj.pm
> line 259
> EPrints::DataObj::create_from_data('EPrints::DataObj::EPrint',
> 'EPrints::Repository=HASH(0x5597864b7c78)', 'HASH(0x559783197000)',
> 'EPrints::DataSet=HASH(0x5
> 5978814e1b0)') called at
> /opt/eprints3/perl_lib/EPrints/DataObj/EPrint.pm line 495
> EPrints::DataObj::EPrint::create_from_data('EPrints::DataObj::EPrint',
> 'EPrints::Repository=HASH(0x5597864b7c78)', 'HASH(0x559783197000)',
> 'EPrints::DataSet=
> HASH(0x55978814e1b0)') called at
> /opt/eprints3/perl_lib/EPrints/DataSet.pm line 1013
> EPrints::DataSet::create_dataobj('EPrints::DataSet=HASH(0x55978814e1b0)',
> 'HASH(0x559783197000)') called at
> /opt/eprints3/perl_lib/EPrints/DataSet.pm line 10
> 07
> EPrints::DataSet::create_object('EPrints::DataSet=HASH(0x55978814e1b0)',
> 'EPrints::Repository=HASH(0x5597864b7c78)', 'HASH(0x559783197000)')
> called at /opt/e
> prints3/perl_lib/EPrints/Plugin/Screen/NewEPrint.pm line 50
> EPrints::Plugin::Screen::NewEPrint::action_create('EPrints::Plugin::Screen::NewEPrint=HASH(0x559788872308)')
> called at /opt/eprints3/perl_lib/EPrints/Plugin/
> Screen.pm line 240
> EPrints::Plugin::Screen::from('EPrints::Plugin::Screen::NewEPrint=HASH(0x559788872308)')
> called at /opt/eprints3/perl_lib/EPrints/ScreenProcessor.pm line 310
> EPrints::ScreenProcessor::process('EPrints::ScreenProcessor',
> 'session', 'EPrints::Repository=HASH(0x5597864b7c78)', 'template',
> undef, 'url', '/cgi/users/ho
> me') called at /opt/eprints3/cgi/users/home line 25
> ModPerl::ROOT::ModPerl::Registry::opt_eprints3_cgi_users_home::handler('Apache2::RequestRec=SCALAR(0x5597832db168)')
> called at /usr/lib/perl5/ModPerl/Registr
> yCooker.pm line 206
>         eval {...} called at /usr/lib/perl5/ModPerl/RegistryCooker.pm
> line 206
> ModPerl::RegistryCooker::run('ModPerl::Registry=HASH(0x559783196fd0)')
> called at /usr/lib/perl5/ModPerl/RegistryCooker.pm line 172
> ModPerl::RegistryCooker::default_handler('ModPerl::Registry=HASH(0x559783196fd0)')
> called at /usr/lib/perl5/ModPerl/Registry.pm line 31
>         ModPerl::Registry::handler('ModPerl::Registry',
> 'Apache2::RequestRec=SCALAR(0x5597832db168)') called at -e line 0
>         eval {...} called at -e line 0
> ================
>
> At the time of the error, tried to `df` using cli of eprints user, can
> give the disk free of the linux.
> Is there any way to debug more? Or the solution is just throw more RAM
> on the VM?
>
> Eprints version: 3.3.15
> OS: Linux Ubuntu 14.04
> RAM: 1GB
>
> Cheers,
> Budiwijaya
>
> *** Options: http://mailman.ecs.soton.ac.uk/mailman/listinfo/eprints-tech
> *** Archive: https://eur03.safelinks.protection.outlook.com/?url="">
> *** EPrints community wiki: https://eur03.safelinks.protection.outlook.com/?url="">

*** Options: http://mailman.ecs.soton.ac.uk/mailman/listinfo/eprints-tech
*** Archive: http://www.eprints.org/tech.php/
*** EPrints community wiki: http://wiki.eprints.org/