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Master Afaria server crash

What happens if the master server is srashed.


Is the whole system will work correctly?
Is the device will be synchronized?

Assume that both servers have identical configuration (Enrollment Server, Package Server, Afaria Server, Afaria API)

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  • Posted on Oct 10, 2014 at 07:58 PM

    Hi, Daniel.

    If you have a fully load-balanced environment and the entire master server machine goes down, the farm servers will be able to handle all device communication requests. However, currently scheduled outbound notifications are done by the master server. So any scheduled outbounds for APNS or GCM would not be sent.

    If only the Afaria Server service goes down then both servers will still be able to service all requests to the Enrollment Server or Package Server. iOS devices communicate exclusively with those two components but other device types communicate with the Afaria Server component directly.

    The big key here is how the the load-balancer responds to the crash. If it can recognize properly that a service is down and re-direct traffic to the server that remains up then device communication should continue uninterrupted. Some load balancers rely on specific replies to HTTP requests against IIS in order to determine system health. However, if the backend service for the Enrollment Server or Package Server are down then IIS will still issue a response. It would generally be a 500 Internal Server Error, however.

    Hope that helps.

    Keith Nunn
    SAP Active Global Support
    SAP Canada

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    • Alok, It would be better to start a new thread/question for your problem. Often, the 500 status is a sign of an overloaded server. You should post details about whether the 500s reappear if you restart services, if they reappear immediately or after some amount of time, the response times that are shown in the IIS logs, CPU/memory utilization (especially for w3wp and Afaria services) and System landscape (e.g., all services are installed on each of two servers, or all services are installed on a single server).

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