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IoT Message Management Service Unavailable (temporarily down for maintenance)

Nov 20, 2017 at 01:58 PM


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Hi Experts,

Since a week I am trying to access the MMS service of the IoT cockpit. On clicking the tile for Send and View messages it opens a link that says:
No server is available to handle this request, or the application iotmms$user$ is temporarily down for maintenance. Excuse us for the inconvenience.
If i try to re-deploy it, it only reaches the start phase and then times out.

Please refer screenshots :

Please suggest how to get MMS service deployed and working.

start-phase.png (269.4 kB)
starting.png (29.1 kB)
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1 Answer

Anton Levin
Nov 20, 2017 at 02:21 PM

Hello Unnati,

there currently some issues with the shared HANA DB on Trial. IoT MMS is affected, since it cannot be started successfully without underlying data source. Technicians are informed. I will give an update in the similar thread [1] once it is fixed. As a workaround, you may create a MDC HANA or MaxDB Database/Schema and bind it manually to the IoT MMS

Sorry for the inconvenience,



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Hello Anton Levin,

In order to bind MDC HANA or MaxDB Database/Schema with IOT MMS manually , I believe we need IOT MMS to be up and running in our Java Application .

Please correct me if I am wrong here




No, you need to restart iotmms after re-binding the data source.


Thanks Levin ,

I was able to re-bind it now .

Also , any tentative dates by when HANA DB trial issue will be fixed ?