Hi,
As the receiver configurations are deployable artefacts, those will be
active when the tenant is loaded. One approach is to have all tenants
loaded indefinitely. I think this will have high memory. And therefore we
internally discussed below approach to handling this problem.
Instead of having multiple MQTT receiver configurations per tenant to
handle this, implement a specialised/privileged MQTT event receiver which
could handle multiple subscriptions on behalf of tenants, and it's only
deployable in the super tenant mode. In that case, this event receiver will
have the topic URI with {tenantDomain} placeholder and it is used to
subscribe to the specific tenanted topic. And then, based on which topic
the event has arrived the tenant flow will be started and an event will be
inserted into specific tenant space. By this way, only the tenants which
are actively used/sending events will be loaded, and not all tenants are
required to be loaded.
Please share your thoughts on this. Also, AFAIR we had the similar
requirement for Task execution. @Anjana, how are we handling that?
Thanks,
Sinthuja.
On Mon, Mar 20, 2017 at 10:50 AM, Jasintha Dasanayake <jasin...@wso2.com>
wrote:
> HI All
>
> When DAS working in tenant mode and a particular tenant has MQTT
> receivers, those cannot be activated once tenants get unloaded. For an
> example , if I restart the DAS then those tenants specific MQTT receivers
> are not loaded unless we explicitly load that particular tenant. IMO,
> expected behavior would be, those receivers should be loaded and subscribed
> to a particular topic without loading the tenants explicitly.
>
> Are there any known mechanism to address this particular problem ?
>
> Thanks and Regards
> /jasintha
>
> --
>
> *Jasintha Dasanayake**Associate Technical Lead*
>
> *WSO2 Inc. | http://wso2.com <http://wso2.com/>lean . enterprise .
> middleware*
>
>
> *mobile :- 0711-368-118 <071%20136%208118>*
>
--
*Sinthuja Rajendran*
Technical Lead
WSO2, Inc.:http://wso2.com
Blog: http://sinthu-rajan.blogspot.com/
Mobile: +94774273955
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