On 07/03/2014 05:31 AM, Wen Wang wrote:
On 7/3/2014 6:06 PM, Yu Xin Huo wrote:
> For this RFC, we are trying to create a *generic message notification
> component* to handle *long task*.
>
> I do not think any new tab is needed for message subscribe configuration.
>
> If this long task is at console admin
> level(host/template/network/storage pool), I recommend to share this
> message among all *root* users.
> If this long task is at VM level, only *VM users* got this message.
>
> The task should be identified by the uri(web api) that triggered it.
+1
From what I understand, only messages attached to kimchi tasks are
going
to be accepted? What about handing up messages from libvirt about errors
in a VM? For example,
https://github.com/kimchi-project/kimchi/issues/367. Or is this
considered a "long task at VM level" too?
>
> On 6/27/2014 7:15 PM, Wen Wang wrote:
>> Dear all,
>> *
>> **Problems:*
>> Now our strategy for long time operation is using task which the
>> browser needs to check up-to-date task status time by time until the
>> task ends. It's time consuming and less efficient. Also there exists
>> several problems when locating each task when doing debug generating
>> and storage pool as well as some new features that might use task
>> strategy in the future.
>>
>> *Solution*:
>> As talked with Sheldon and Zhengsheng, we came up with a solution
>> that avoid browser checking status every 200ms. Also, we might need
>> some more labels in each task to provide more information when
>> getting the task like we might need to indicate which operation
>> triggered certain task. What's in our mind is to use the strategy
>> that allow the server inform browser about the task information. Our
>> proposal is designed as follows.
>>
>> 1) Browser needs to register to the back end to indicate which part
>> the result needs to reply to when the task finished.
>> 2) The back end use broker to manage message distribution: when a
>> task is finished or experiencing an error, back end inform the
>> browser certain part of work is finished or error.
>> 3) Using websocket of cherrypy to accomplish the message transfer.
>>
>> Best Regards
>>
>> Wang Wen
>>
>>
>>
>>
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>>
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>
>
>
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