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POIIS servicehost with loadbalancing and custom config store?
 

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  1. POIIS servicehost with loadbalancing and custom config store?
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    <p>Looking for some guidance on feasibility and implementation.. I would like to accomplish the following; Create a custom ServiceHostFactory that can be used within IIS and Console/Service apps that scans a configuration for any registered services and loads them (I can do this via Unity) but also understands via the same config that a service may be hosted in multiple locations and does some load-balancing -- say round robin for simplicity -- on every call. Id also like this factory to (somehow) provide configuration data to the service, like a custom appsettings provider and allow those settings to change, additional service host locations for each service to be added/removed from load balancing, and other such management events. Ideally at runtime..</p> <p>I believe this is possible, but not sure how? I've figured out the following;</p> <ol> <li>Load service implementation dlls via Unity</li> <li>Also host a 'config' service and create a custom settingsprovider that talks to this <ul> <li>how do I 'invalidate' a setting when it changes?</li> </ul></li> </ol> <p>Still not sure how to implement round-robin and the eventing..</p> <p>Any suggestions? Has this been done before? Are there samples available? MS StockTrader 5 seems to do something similar with azure, but i can't make heads or tails of the code and how it's all wired up..</p> <p>UPDATE: In reading further, I think what Im after is a WCF routing service that can understand commands.. i.e. a routing service that i can send commands like 'add service' at runtime.. Still not really clear on whether this is possible?</p>
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    1. COAs far as load balancing, why not use a load balancer for that?
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      1. USJohn Saunders
    2. COI could, and currently do. But I'd like to load-balance per-service based on custom data. e.g. service A which is CPU-bound gets load-balanced based on the cpu perf counter, but service B which is RAM bound gets routed based on that.
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    3. COSounds complicated, and I wonder if that level of complexity is actually necessary.
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      1. USJohn Saunders
 

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