Checksum checking and reporting in DSpace

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Gail Steinhart

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Jul 20, 2018, 2:05:29 PM7/20/18
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Greetings all,

 

Before we upgraded to DSpace 6.2, we ran nightly checksum reporting jobs, which were sent to our system programmer. Since upgrading to 6.2, we no longer receive the reports. Logs indicate the checksum checker runs, but no reports are mailed. We have been unable to get reports to send by changing options or running jobs manually. We’ve also tried the health check reports, which run, but don’t check all of our bitstreams.

 

We’re at a loss. We’re very uncomfortable with the notion that not receiving checksum reports means there are no errors to report. The absence of a report could just as easily mean the checking or reporting function is broken and not that there are no errors. We’re wondering how others in the DSpace community are handling checksum checking and reporting? Are you having the same issues? Are there any tools out there that you are using, or other suggestions you might have? Any other workarounds?

 

Thanks so much for any suggestions,

Gail

 

Gail Steinhart

Scholarly Communication Librarian | arXiv Program Associate

Digital Scholarship & Preservation Services | Cornell University Library

229 Olin Library | 607.255.7251

http://orcid.org/0000-0002-2441-1651 | @gailst

she/hers

 

Bram Luyten

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Aug 9, 2018, 11:39:21 AM8/9/18
to Gail Steinhart, dspace-c...@googlegroups.com
Hi Gail,

we've very recently seen that the checksum checker fails in DSpace 6.x with large repositories.

Could this also be what's affecting you? Are the logs giving you any indication that the job succesfully completes?

best regards,

Bram

logoBram Luyten
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Gail Steinhart

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Aug 10, 2018, 11:59:01 AM8/10/18
to Bram Luyten, dspace-c...@googlegroups.com

Hi Bram,

 

We have two problems, actually.

 

Checksum checker: runs, but we get no reports, ever, even though it’s set to “report everything.” And bitstream deletions happen often enough that that should definitely trigger a report.

 

Health check reports: Runs, but only a fraction of bistreams checked. There may or may not be an error (a hibernate error) but even without an error, not all bitstreams are checked.

 

We’ve gone ahead and written our own checksum checker and are running our own reports.

 

Thanks for the follow up,

Gail

Bram

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Ying Jin

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Aug 21, 2018, 3:09:35 PM8/21/18
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Hi Gail,

We are on dspace 6.2 and begin to experience the same issue as yours. Would you mind to share the code for your own checksum checker and reports?

Thanks,
Ying

Rice University @ Fondren Library
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