[dspace-tech] Cannot delete bitstream or item

2021-04-16 Thread dba...@gmail.com 
I have an item that is not being OCR'd or having it's thumbnail generated. 
I thought there might be an issue with the PDF, so I tried to delete the 
bitstream to re-add it. However, the page simply keeps loading after 
clicking the button to delete.

So, I tried to delete the entire item, but it does the same thing. The 
browser just keeps loading, and it never generates an error nor deletes the 
item.

I checked the bitstream in the postgres database, and it shows it as

29453;4;"1f416d7fa2882a68c8d809780df8f43b";"MD5";"91570276739113098692915736298364931132";t;0;1;8958837

which notes that it is flagged deleted = TRUE, but the item and bitstream 
are still accessible in my web interface.

It looks like this item is corrupt. Is there a way to tell what is corrupt 
about it? If not, is there a way that I can delete the bitstream and/or 
item?

Info:
==
Database URL: jdbc:postgresql://localhost:5432/dspace
Database Schema: public
Database Software: PostgreSQL version 9.4.17
Database Driver: PostgreSQL JDBC Driver version 42.2.1.jre7
DSpace version:  5.10
OS:  Windows Server 2012 R2(amd64) version 6.3
JRE:  Oracle Corporation version 1.8.0_171
Ant version:  Apache Ant(TM) version 1.9.4 compiled on April 29 2014
Maven version:  3.2.5

THANKS!

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Re: [dspace-tech] informal survey regarding bitstream limits and sizes

2021-04-16 Thread Alan Orth 
Hi Bill,

We primarily host open access PDFs, PowerPoints, and documents in an
institutional/academic research setting. We limit uploads to 30MB in our
nginx frontend. Part of open access is ensuring that people on
low-bandwidth or bandwidth-limited connections can download files easily,
without incurring fees, on spotty connections, etc. If an editor reaches
out to me I can temporarily increase the limit. We have 90,000 items in our
repository and this has worked well for us.

Pragmatically we have avoided offering support for large uploads to our
users because it increases administrative burden for me (sysadmin) and for
our organization (server size, backups, architecture complexity, etc). If a
project has produced a video we have them upload it to Vimeo, YouTube, etc
and then we add a link in the metadata. For any large file type you can
think of—video, genome sequences, data dump, etc—there is a platform that
is better suited than DSpace where you can upload it.

Regards!

On Thu, Apr 15, 2021 at 10:59 PM 'Bill Tantzen' via DSpace Technical
Support  wrote:

> Sorry for the duplication -- I originally sent this to dspace-community,
> but I it did not generate a great deal of discussion, so I thought I would
> take my chances here:
>
> If you have a minute, I am trying to get a feel for some of the larger
> (reasonable) bitstreams the community is currently supporting.  On my site,
> we have removed the DSpace upload limits to allow for records containing
> research data, but of course there are practical limits that dictate what
> makes for a good user experience.
>
> What is the largest bitstream you support?  Do you enforce upload limits?
> Assuming download speeds are faster than upload speeds, what are some of
> the methods in use (besides the DSpace gui) to get large files onto the
> server?  What are some alternatives to simple DSpace upload currently
> utilized -- like globus for instance?
>
> I realize the answer to these questions will always include "it
> depends...", but are these all questions you have had at your institution
> and how have you dealt with them?
>
> Thanks for any discussion you wish to contribute!
> ~~ Bill
>
> --
> Human wheels spin round and round
> While the clock keeps the pace... -- John Mellencamp
> 
> Bill TantzenUniversity of Minnesota Libraries
> 612-626-9949 (U of M)612-325-1777 (cell)
>
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> 
> .
>


-- 
Alan Orth
alan.o...@gmail.com
https://picturingjordan.com
https://englishbulgaria.net
https://mjanja.ch

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[dspace-tech] Import and Export-Collection specific metadata

2021-04-16 Thread Projects Arunendra 
While batch uploading if somebody unintentionally *import*s metadata of one 
type of collection into another collection, having separate metadata, can 
Dspace prevent that?

Similarly, while *export*ing, how do I export collection with its own 
metadata only and not other metadata fields that are not part of that 
Collection?

I am using DSpace 5.10 but I guess the question will apply to recent 
versions also.

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