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[EP-tech] Problems with view generation: EPrints System Error



Hi Adam,

For now, my colleagues in the IT service centre solved the problem by 
raising the number of files permitted in one directory on our Netapp, 
but that is only a temporary solution. Almost 340.000 files in one 
directory are just too many, so I'll have to find a way to split the 
person view into groups somehow.

Your suggestion of checking the number of variations should be a first 
step in reducing the number of files. Here's our current view 
configuration, which I'm going to change by taking away the DEFAULT 
variation:

>        {
>                 id => "person",
>                 hideempty => 0,
>                 allow_null => 0,
>                 menus => [
>                         {
>                                 fields => [ "person_view_name" ],
>                                 mode => "sections",
>                                 grouping_function => "EPrints::Update::Views::group_by_first_character",
>                                 group_range_function => "EPrints::Update::Views::cluster_ranges_40",
>                                 new_column_at => [40],
>                                 open_first_section => 1,
>                         },
>                         ],
>                 order => "-date;res=year/title/publication/book_title",
>                 hideup => 0,
>                 nocount => 0,
>                 notimestamp => 0,
>                 include => 1,
>                 variations => [
>                         "type",
>                         "date;truncate=4,reverse",
>                         "DEFAULT",
>                 ],
>                 citation => "view",            # Views mit Volltext-Hinweis!
>         },

Thanks for all your help!

Verena

>
> Message: 1
> Date: Tue, 26 Apr 2016 08:35:49 +0000
> From: Adam Field <Adam.Field at jisc.ac.uk>
> Subject: Re: [EP-tech] Problems with view generation: EPrints System
> 	Error
> To: "eprints-tech at ecs.soton.ac.uk" <eprints-tech at ecs.soton.ac.uk>
> Message-ID: <C2A1398C-702E-4C79-B4CD-2BAD5987789F at jisc.ac.uk>
> Content-Type: text/plain; charset="utf-8"
>
> My previous suggestion wasn't right and won't work exactly as expected on reflection.
>
> What happens when you run generate_views from the command line?
> Just how many files do you have in the directory on the hard disk?
>
> Can you paste in the browse view configuration?  It may be that turning of variations will solve this.
>
> [Jisc]<http://www.jisc.ac.uk/>
>
> Adam Field
> SHERPA services analyst developer
>
>
> From: <eprints-tech-bounces at ecs.soton.ac.uk<mailto:eprints-tech-bounces at ecs.soton.ac.uk>> on behalf of Verena Mattes <verena.mattes at ub.uni-bayreuth.de<mailto:verena.mattes at ub.uni-bayreuth.de>>
> Reply-To: "eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>" <eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>>
> Date: Tuesday, 26 April 2016 07:48
> To: "eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>" <eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>>
> Subject: Re: [EP-tech] Problems with view generation: EPrints System Error
>
> Hi Alan and Adam,
>
> Thanks for your suggestions. We are running EPrints 3.3.11 and the free
> space on our hard disk is not a problem. I checked with a colleague and
> he confirmed my guess that the problem is caused by the number of files
> in the directory, obviously the maximum number was reached last week and
> no further files can be created.
> Does anybody have a quick idea on how to divide files for one view, the
> person view, to different directories? Would it be possible to define
> different views for groups of letters, e.g. A-D or something like that?
>
> Thanks!
>
> Verena
>
>
>
> Date: Mon, 25 Apr 2016 10:58:47 +0000
> From: Adam Field <Adam.Field at jisc.ac.uk<mailto:Adam.Field at jisc.ac.uk>>
> Subject: Re: [EP-tech] Problems with view generation: EPrints System
> Error
> To: "eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>" <eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk>>
> Message-ID: <3D933692-5E6D-4B33-9499-1DD23E2B4C62 at jisc.ac.uk<mailto:3D933692-5E6D-4B33-9499-1DD23E2B4C62 at jisc.ac.uk>>
> Content-Type: text/plain; charset="utf-8"
>
> What specific version of EPrints are you running?  What is line 1550 of /usr/share/eprints3/perl_lib/EPrints/Update/Views.pm
>
> Also, silly question, but how much free space do you have on your hard disk?
>
> [Jisc]<http://www.jisc.ac.uk/>
>
> Adam Field
> SHERPA services analyst developer
>
>
> From: <eprints-tech-bounces at ecs.soton.ac.uk<mailto:eprints-tech-bounces at ecs.soton.ac.uk><mailto:eprints-tech-bounces at ecs.soton.ac.uk>> on behalf of Verena Mattes <verena.mattes at ub.uni-bayreuth.de<mailto:verena.mattes at ub.uni-bayreuth.de><mailto:verena.mattes at ub.uni-bayreuth.de>>
> Reply-To: "eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk><mailto:eprints-tech at ecs.soton.ac.uk>" <eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk><mailto:eprints-tech at ecs.soton.ac.uk>>
> Date: Monday, 25 April 2016 09:51
> To: "eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk><mailto:eprints-tech at ecs.soton.ac.uk>" <eprints-tech at ecs.soton.ac.uk<mailto:eprints-tech at ecs.soton.ac.uk><mailto:eprints-tech at ecs.soton.ac.uk>>
> Subject: [EP-tech] Problems with view generation: EPrints System Error
>
> Hello,
>
> since last week, we've had problems with the view generation for our
> author/person view. These problems specifically concern the views for
> new author names, which are not generated, while the views for already
> existing author names are updated.
>
> For each author name concerned, there is an entry in the apache error log:
>
> Error writing to /usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kaiser=3AMario=3A=3A.export: File too large
> ------------------------------------------------------------------
>      at /usr/share/eprints3/perl_lib/EPrints/Update/Views.pm line 1550
>             EPrints::Update::Views::output_files('EPrints::Repository=HASH(0x7fb0663688d0)', '/usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kai...', 'XML::LibXML::DocumentFragment=SCALAR(0x7fb06a7e5938)', '/usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kai...', 'XML::LibXML::Element=SCALAR(0x7fb06a45f160)', '/usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kai...', 'XML::LibXML::DocumentFragment=SCALAR(0x7fb06a7e5938)', '/usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kai...', 'XML::LibXML::DocumentFragment=SCALAR(0x7fb06a668aa8)', ...) called at /usr/share/eprints3/perl_lib/EPrints/Update/Views.pm line 935
>             EPrints::Update::Views::update_view_list('EPrints::Repository=HASH(0x7fb0663688d0)', '/usr/share/eprints3/archives/ubt_eref/html/de/view/person/Kai...', 'de', 'EPrints::Update::Views=HASH(0x7fb06a6863f0)', 'ARRAY(0x7fb064b78c70)') called at /usr/share/eprints3/perl_lib/EPrints/Update/Views.pm line 259
>             EPrints::Update::Views::update_view_file('EPrints::Repository=HASH(0x7fb0663688d0)', 'de', '/view/person/Kaiser=3AMario=3A=3A.html', '/view/person/Kaiser=3AMario=3A=3A.html') called at /usr/share/eprints3/perl_lib/EPrints/Apache/Rewrite.pm line 513
>             EPrints::Apache::Rewrite::handler('Apache2::RequestRec=SCALAR(0x7fb06a471710)') called at -e line 0
>             eval {...} called at -e line 0
>
> In this specific case, the author's name is linked to only 2 EPrints
> entries, so it is unlikely that this file would be particularly large.
>
> Does anybody have an idea concerning this? I would appreciate any help.
>
> Thanks!
>
> Verena
>
> *** Options: http://mailman.ecs.soton.ac.uk/mailman/listinfo/eprints-tech
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> *** EPrints community wiki: http://wiki.eprints.org/
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>
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>
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