1handlers=java.util.logging.ConsoleHandler 2io.grpc.ChannelLogger.level=FINEST 3io.grpc.level=FINEST 4io.netty.level=FINEST 5java.util.logging.ConsoleHandler.level=ALL 6java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter 7java.util.logging.SimpleFormatter.format=[%1$tF %1$tT.%1$tL %1tZ] [%4$-7s] [%3$s] %5$s %6$s %n 8