dhis2-devs team mailing list archive

[Halvdan Hoem Grelland <halvdan@xxxxxxxxx>]

Vanya,

If you're talking about simply exposing
TaskExecutor.submitListenable(Runnable) in the Scheduler interface, it's
not a big deal. I'd think you could just go ahead. Alternately you could
wire the AsyncListenableTaskExecutor bean directly into the service, I
suppose.

On Mon, Aug 22, 2016 at 12:55 PM, Vanya Seth <vanyas@xxxxxxxxxxxxxxxx>
wrote:

> Hi Lars
>
> Any comments on this one?
>
> Regards
> Vanya
>
> On Wed, Aug 17, 2016 at 12:44 PM, Vanya Seth <vanyas@xxxxxxxxxxxxxxxx>
> wrote:
>
>> Hi Lars
>>
>> We are looking at extending org.hisp.dhis.system.scheduling.Scheduler to
>> also have the ability to return the ListenableFuture for a Runnable as
>> well. This will help us or any dev in the future to check the status of the
>> ongoing Runnables in the system and provide some user experience around it.
>>
>> Please let know if you are ok with us taking it up? As we want to fix a
>> bug wherein the "sync now" button should not be clickable if the task is
>> already running.
>>
>> Regards
>> Vanya
>>
>>
>> On Mon, Aug 8, 2016 at 9:26 AM, Aamer Mohammed <aamerm@xxxxxxxxxxxxxxxx>
>> wrote:
>>
>>> Hi Lars/Morten,
>>>
>>> The scheduling page in DHIS 2.24 has ability to run tasks immediately in
>>> below sections.
>>>
>>>    - Metadata Synchronization - Using 'Sync Now' button
>>>    - SMS Scheduler - Using 'Run Now' button
>>>
>>> When the user clicks 'Sync Now' button, an asynchronous task is
>>> triggered in the backend for metadata synchronization. The user can click
>>> the button again before the synchronization task is even complete. We want
>>> to prevent this as it can spawn multiple threads in the system all doing
>>> the same job leading to race conditions in system.
>>>
>>> We can do the changes in SchedulingManager.executeTask so that it will
>>> check the status of the previously submitted task. If it is not running
>>> then it will start new task or otherwise not. These changes should be
>>> applicable to any 'executeNow' type tasks in the system.
>>>
>>> Does DHIS2 already have such functionality available elsewhere in the
>>> system? Any thoughts on this approach.
>>>
>>>
>>> Thanks
>>> Aamer.
>>>
>>
>>
>>
>> --
>> With Regards
>> ThoughtWorks Technologies
>> Hyderabad
>>
>> --Stay Hungry Stay Foolish!!
>>
>
>
>
> --
> With Regards
> ThoughtWorks Technologies
> Hyderabad
>
> --Stay Hungry Stay Foolish!!
>
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-- 
Halvdan Hoem Grelland
Software developer, DHIS 2
University of Oslo
http://www.dhis2.org <https://www.dhis2.org/>