Logging: Startup messages log level #1854
Description
Startup messages are currently logged at a warning level, but should probably be at a debug or info level.
[2017-10-13 18:50:51.571][6][warning][main] source/server/server.cc:164] initializing epoch 0 (hot restart version=9.200.16384.127)
[2017-10-13 18:50:51.587][6][warning][main] source/server/server.cc:332] starting main dispatch loop
[2017-10-13 18:50:51.587][6][warning][main] source/server/server.cc:316] all clusters initialized. initializing init manager
[2017-10-13 18:50:51.587][6][warning][config] source/server/listener_manager_impl.cc:448] all dependencies initialized. starting workers
Simply changing their level will likely hide them by default and that is probably undesirable (these messages should probably always be printed).