cwdm channels

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Flume collection Examples of several sources for collecting logs

Example 1: Type Avro, create a avro.conf for testing in the Conf of Flume, as follows:A1.sources = R1A1.sinks = K1A1.channels = C1 # Describe/configure The sourceA1.sources.r1.type = AvroA1.sources.r1.channels = C1A1.sources.r1.bind = 0.0.0.0A1.sources.r1.port = 44444 # Describe The sinkA1.sinks.k1.type = Logger # Use a channel which buffers events in memoryA1.channels.c1.type = Memorya1.channels.c1.capacit

From 100,000 to 10 million: how to increase the number of users in your app quickly

community such as knowledge.Major app stores are still the main traffic portals, such as checking your app's Top ten App Store rankings, comments, and searching for the number of keywords to see how your app ranks. If you really do not know what the best app is ranked, you can search for some well-known apps and your app to compare, such as you search Sina Weibo, or Sogou input method, look at their rankings, and then search your app to see your rankings, do the right, you know your app is how

Multi-channel (multichannel) single-channel (Singlechannel) image concept carding

In machine vision, it is often necessary to separate a multi-channel image into several single-channel images or to synthesize several single-channel images into a multi-channel image for easy image processing, however. This blog is to deepen the understanding of these two concepts, the following will give some of the OPENCV to the single channel and multi-channel image conversion between the program code, and the results of the operation of observation and analysis. OpenCV is commonly used in i

Introduction to analog cellular mobile communication system (1G)

. Base Station The base station consists of RF components (RF racks and receiving and transmitting antennas), data racks, Line Monitoring racks, and maintenance test racks. When the base station uses a 120 ° Sector radiation mode, three RF racks, one data rack, one line detection rack, and one maintenance test Rack are required. Each RF rack has a maximum capacity of 16 wireless channels, that is, 16 Receiver/sender machines. When the base station use

Color, contrast and lab!!

RGB color space, you are free to switch between lab and RGB, without loss of quality in the conversion. If you have already operated in CMYK color space, there is only a small loss of quality to lab, but the loss is offset by the benefits of this conversion.Lab has three channels, and in this page of images you can see that A and B channels are almost indistinguishable, they just define the color portion o

Microsoft. NET remoting: remoting Basics

obtain the server object, and then parses it as the client object through proxy. This provides a possibility to publish server objects as a service. Remote Object code can run on a server (such as an object activated by the server and an object activated by the client). Then, the client connects to the server through remoting to obtain the service object and serialize it to the client. In remoting, in addition to the channel type and port number, the designer does not need to know the data pack

Comprehensive Explanation of modulation in ADSL Access Technology

The ADSL access technology is still quite common. So I studied the modulation knowledge in the ADSL access technology. I would like to share it with you here, hoping it will be useful to you. Asypolicric Digital Subscriber Line (Asymmetric Digital user Line) is an Asymmetric copper access network technology. It uses Digital encoding technology to obtain large data transmission rates from existing copper telephone lines, at the same time, it does not interfere with conventional voice services on

OpenCV Learning (histogram of computed images)

OpenCV calculating the histogram of an imageThe histogram of the computed image is a very common basic operation in the field of image processing. The Calchist function is provided in OpenCV to calculate the histogram of the image. But this function is very difficult to tell the truth, studied for a long time to master some basic usage.The function prototypes for the Calchist function C + + are as follows:void calcHist(const Mat* images, int nimages, const int*

Are you still saying you are doing weibo marketing?

marketing, it's not marketing, but mobile marketing. The so-called mobile marketing is a new marketing method oriented to the mobile Internet era, covering Weibo, clients, and browsers. regardless of how products are iterated, mobile marketing is always called! Next, experts, please give the company the following suggestions: First, Weibo is only one channel, and marketing channels cannot be generalized. Second, mobile marketing is in the ascendant.

Java NiO Reading notes

One, the difference between Java io and NiO:(1) Java NIO provides different IO modes of operation than standard IO: Channels and Buffers (channels and buffers): Standard IO is based on byte stream and character stream, while NiO is based on channel (channels) and buffers (buffer), data is always read from the channel into the buffer, or written to the ch

OpenCV Learning (calculate the histogram of images)

OpenCV Learning (calculate the histogram of images)OpenCV calculates the histogram of the image Calculating the histogram of an image is a very common operation in the field of image processing. OpenCV provides the calcHist function to calculate the image histogram. However, this function is quite difficult to tell the truth. After studying it for a long time, I learned some basic usage. The prototype of the calcHist Function C ++ is as follows: void calcHist(const Mat* images, int nimages,

ESFramework development manual (04)-reliable P2P

Document directory TCP punching This article introduces ESFramework development manual (00)-the last of the four major weapons mentioned in the article: P2P channels. Compared with 1.x, ESPlus 2.0 provides P2P support. ESPlus 2.0 provides P2P Channels Based on TCP and UDP (not only supports LAN, but also P2P communication over WAN). Whether we use TCP-based P2P cha

Java NiO Learning (vi)

The Selectorselector (selector) is a component in Java NIO that detects one or more NIO channels and is able to know whether the channel is ready for a read-write event. In this way, a single thread can manage multiple channel to manage multiple network connections.Why use selector?The benefit of using only a single thread to handle multiple channels is that fewer threads are needed to process the channel.

Java NiO Series Tutorial (vi) Selector

Original link Jakob Jenkov Translator: Wander v proofreading: DingThe Selector (selector) is a component in Java NIO that detects one or more NIO channels and is able to know whether the channel is ready for a read-write event. In this way, a single thread can manage multiple channel to manage multiple network connections.The following is a list of topics covered in this article: Why use selector? Creation of Selector Registering a c

Linux recording, playback program __linux

#include #include #include #include #include #include #include #include #define LENGTH 10//Recording time, sec#define RATE 88200//Sampling frequency#define SIZE 16//quantization number of digits#define CHANNELS 2//channel number#define the size of the Rsize 8//buf, /******** The following is the file header format description for the wave format file ******//*------------------------------------------------| RIFF WAVE Chunk || ID = ' RIFF ' || Riffty

The analysis of the strategic planning stage of Big Taobao

The concept of Internet marketing, which is inherently ambiguous, is becoming increasingly popular. Under the financial crisis, many manufacturers who used to do pure foreign trade began to expand their domestic market by Internet. The rapid rise of the company, Alibaba domestic trading products, as well as Baidu paid search products selling, and no one does not show this kind of clues. At the same time, the domestic E-commerce trademark company Alibaba Group Taobao, also launched is called "Big

Flume of the common sink

avro_event or the FQCN of a implementation of EVENTSERIALIZER.B Uilder interface.BatchSize 100 Instance: A1.sources = R1 a1.sinks = K1 a1.channels = C1 A1.sources.r1.type = HTTP a1.sources.r1.port = 6666 a1.sources.r1.channels = C1 a1.channels.c1.type = Memory a1.channels.c1.capacity = a1.channels.c1.transactionCapacity = a1.sinks.k1.type = file_roll a1.sinks.k1.sink.directory =/home/par

Understanding Java NIO

model is the asynchronous model. Let's take a look at the 5 I/O models presented by Richard Stevens in its UNIX network programming volume 1.• Block-Type I/O• Non-blocking I/OI/O multiplexing (Java NiO is this model)• Signal-driven I/O• Asynchronous I/ODefined by POSIX terminology, synchronous I/O operations cause the request process to block until the I/O operation completes, and asynchronous I/O operations do not cause the request process to block. The first 4 of the 5 models belong to the sy

Reds pub/sub Official Document translation

Publish/subscribePublish/SubscribeRedis-py includes a PubSub object, subscribes to channels, and listens for new messages. Creating a PubSub object is easy./redis-py with PUBSUB goals that can subscribe to channels and listen to new information. Here's how to create a pubsub:>>> r = Redis. Strictredis (...)>>> p = r.pubsub ()Once a PubSub instance is created, channels

Opening the door to HD: audio of the new generation of audio and video technology

Author: little monk afa published in: Period 2008-03 of Microcomputer Preface "HD" is a complete system, not a single standard or product. In the HD era, both video and audio must meet the HD standard. What is high-definition audio? What are the benefits of high-definition audio compared with normal audio? Starting from high-definition audio, the technology of high-definition audio has been unveiled layer by layer. How to define HD Audio 1. Multi-Channel 5.1 surround sound, "pass line" of HD Aud

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