Hi, I installed PIO+UR with the default settings. I see the process with arguments
... --engine-variant file:/home/mengao/timao/engine.json --ip 0.0.0.0 --port 8000 --event-server-ip 0.0.0.0 --event-server-port 7070 ... A basic question: what's the difference between the 'engine' and the 'event server'? I see the engine port 8000 and event server port 7070. Also, can someone please explain in general terms "a day in the life of a request and a response"? That is, how the data travels among the major frameworks ( Event Server, Elasticsearch, Sparks, HBase, ... ) - assuming Elasticsearch + Hbase and only 1 server Footnote: what's "spray-can" ? I see "Server: spray-can/1.3.3" as a header in one http response. Thanks! Gustavo
