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Support THeader protocol
THeader is an optional wrapper for Thrift RPC messages that allows for requests to include out-of-band headers, useful for things like distributed tracing in service oriented architectures.
This change only implements THeader support on the server side. We can auto-detect the protocol on a per-request basis based on the first two bytes. THeader starts with 0x0FFF, whereas binary starts with 0x8001.
If the server receives a THeader call, it needs to return a THeader reply, otherwise some clients may break. Generally speaking clients will have a configured a transport/protocol and always use it.
If the server receives a THeader call, it needs to return a THeader reply, otherwise some clients may break. Generally speaking clients will have a configured a transport/protocol and always use it.
Will work on this.