[GitHub] wu-sheng opened a new issue #951: Add namespace(lable) in sw3 propagation protocol

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wu-sheng opened a new issue #951: Add namespace(lable) in sw3 propagation protocol
URL: https://github.com/apache/incubator-skywalking/issues/951
 
 
   Based on our multi tenants scenario or multi SkyWalking clusters for a big distributed system, let say SkyWalking-1 and SkyWalking-2 in following descriptions:
   
   Both SkyWalking services are using sw3 propagation protocol, but the data storage and context are different and isolated from each other. So if SkyWalking-1 head coming to SkyWalking-2, SkyWalking-2 will tread it as its own, which will cause unexpected data, such as: Operation Id don't exist, App Instance/Code don't exist.
   
   So, I proposal and send a pull request later, to add a namespace in header name. e.g. `sw3-namespace`.
   
   cc @adriancole @ascrutae 
   

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