[LON-CAPA-admin] [External] how to remove old lonUsers data?

[Lucas, Mark]

Todd,

Just as a caveat, each course also has a directory under lonUsers.
It is not just users.

If you are removing everything that hasn’t been touched for 1000 days,
you are probably also removing courses older than 1000 days. You may
also remove portions of courses in ways that may cause errors if you
access the partially removed old courses.

Mark

> On Sep 30, 2024, at 12:01 PM, Lars via LON-CAPA-admin <lon-capa-admin at mail.lon-capa.org> wrote:
>
> Use caution with links and attachments.
>
> Hi Todd,
>
> They are just user files, so I don't see them affecting how lon-capa
> runs. We haven't seen any problems.
>
> Sincerely,
> Lars.
>
> On Mon, Sep 30, 2024 at 8:53 AM Todd Pfaff <pfaff at rhpcs.mcmaster.ca> wrote:
>>
>> Thanks, Lars.  This is essentially what I was wondering: is it safe to
>> simply selectively remove old files under lonUsers.  Given what you're
>> doing, I guess the answer is "yes".
>>
>> Todd
>>
>> On Sun, 29 Sep 2024, Lars wrote:
>>
>>> Hi Tod,
>>>
>>> We have used this command to wipe out directories containing only
>>> files older than 1000 days:
>>>
>>> Enter on command line in /home/httpd/lonUsers/tmcc/* to erase student
>>> directories in which every file is older than 1000 days:
>>>
>>> for d in ./*; do find "$d" -mindepth 0 -mtime -1000 -print -quit |
>>> grep -q . || echo rm -rf "$d"; done
>>>
>>> Remove the echo when satisfied. Remove the -q to find out why a
>>> directory is not being removed.
>>>
>>> Sincerely,
>>> Lars.
>>>
>>> On Sun, Sep 29, 2024 at 3:44 PM Todd Pfaff via LON-CAPA-admin
>>> <lon-capa-admin at mail.lon-capa.org> wrote:
>>>>
>>>> Our lonUsers directory tree has grown to several hundred gigabytes with
>>>> data from the past decade or so.  We'd like to be able to discard some of
>>>> the older data that is no longer needed, but there doesn't seem to be any
>>>> obvious or documented method for doing this sort of operation.
>>>>
>>>> How does on go about safely removing old lonUsers data?
>>>>
>>>> Thanks,
>>>> Todd
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>>>
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> confidential by law, may be subject to the Nevada Public Records laws and
> may be disclosed to the public upon request.
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--
Mark Lucas
Professor of Instruction
Department of Physics and Astronomy (College of Arts and Sciences)/Ohio Honors Program (Honors College)
270 Clippinger Lab, Ohio University, Athens, OH 45701
email: lucasm at ohio.edu
phone: (740)597-2984
Pronouns: He, Him, His