[Koha-devel] Bug 1993 - Task Scheduler Needs Re-write

[Jonathan Druart]

My work was focused on the issue we face for background jobs.

I have just pushed my local branch to
https://gitlab.com/joubu/Koha/commits/bug_15032_other_tries (last 7 commits)
There is nothing to process the queued jobs actually, so I guess it is not
what you expected.
IIRC my conclusion was that it is not possible to fix it (i.e. we cannot
have the progress bar working correctly under plack). We should just
display a "job submitted" message and provide a view to monitor the running
job, and finally show the results of the job (but not as simply as it
sounds).

Cheers,
Jonathan

On Mon, 18 Jun 2018 at 04:46 Renvoize, Martin <
martin.renvoize at ptfs-europe.com> wrote:

> Interested to see what you've started Jonathan,
>
> In rebus:list we used Minion, the job queue spin-off project from the same
> guys that wrote Mojolicious. Granted, it works best with a PostgreSQL
> backend, but I believe there are MySQL backends too.. I'd probably start
> there... the more I worked with them the more complicated I came to realise
> queues are.. lean on the shoulders of giants and all that ;)
>
> Martin
>
> *Martin Renvoize*
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> On 14 June 2018 at 17:16, Jonathan Druart <
> jonathan.druart at bugs.koha-community.org> wrote:
>
>> Few links:
>>
>> http://lists.koha-community.org/pipermail/koha-devel/2017-February/043489.html
>> *Bug 10662*
>> <https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=10662> - Build
>> OAI-PMH Harvesting Client
>> *Bug 15032*
>> <https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=15032> - [Plack]
>> Scripts that fork (like stage-marc-import.pl) don't work as expected
>>
>> Basically we need a daemon watching a job queue (DB table) to answer all
>> these needs at once.
>> I have started something already, I will get back to it when I will have
>> time (and motivation).
>>
>> Cheers,
>> Jonathan
>>
>> On Thu, 14 Jun 2018 at 12:59 Barton Chittenden <
>> barton at bywatersolutions.com> wrote:
>>
>>> This is an old issue that's never really been addressed. As I understand
>>> it, at one time, we had a tool that used the unix 'at' scheduler to run
>>> requested reports. This was a huge security hole, and we disabled it....
>>> and it's never worked since.
>>>
>>> As such, those who host servers must add calls to runreport.pl by hand.
>>>
>>> Bug 1993 was opened to address this. It was marked as 'In Discussion' in
>>> 2013. I would like to see this move forward -- server admins are dying from
>>> a thousand paper cuts, and I think that users would benefit from having
>>> more control over when their reports are scheduled.
>>>
>>> What still needs to be discussed here?
>>>
>>> Thanks,
>>>
>>> --Barton
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>>
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