src/main/java/com/alipay/remoting/rpc/protocol/RpcRequestProcessor.java
private void debugLog(RemotingContext ctx, RpcRequestCommand cmd, long currentTimestamp) {
        if (logger.isDebugEnabled()) {
            logger.debug("Rpc request received! requestId={}, from {}", cmd.getId(),
                RemotingUtil.parseRemoteAddress(ctx.getChannelContext().channel()));
            logger.debug(
                "request id {} currenTimestamp {} - arriveTime {} = server cost {} < timeout {}.",
                cmd.getId(), currentTimestamp, cmd.getArriveTime(),
                (currentTimestamp - cmd.getArriveTime()), cmd.getTimeout());
        }
    }
private void debugLog(RemotingContext ctx, RpcRequestCommand cmd, long currentTimestamp) {
        if (logger.isDebugEnabled()) {
            logger.debug("Rpc request received! requestId={}, from {}", cmd.getId(),
                RemotingUtil.parseRemoteAddress(ctx.getChannelContext().channel()));
            logger.debug(
                "request id {} currenTimestamp {} - arriveTime {} = server cost {} < timeout {}.",
                cmd.getId(), currentTimestamp, cmd.getArriveTime(),
                (currentTimestamp - cmd.getArriveTime()), cmd.getTimeout());
        }
    }
print some debug log when receive request