apache hadoop the definitive guide pdf

... work. This book, therefore, is the definitive guide to HTML. We give details for all the elements of the HTML 4.0 standard, plus the variety of interesting and useful extensions to the language—some ... in the image, the graphical browser sends the relative x,y coordinates of the mouse posi- tion to the server that is also designated in the anchor. A special server program then translates the ... tags and their attributes. Still others embed HTML tags as they compose. We think the stepwise approach—compose, then mark up—is the better way. We find that once we’ve defined and written the document’s...

Ngày tải lên: 16/01/2014, 16:33

... Won the minute sort by sorting 500 GB in 59 seconds (on 1,400 nodes) and the 100-terabyte sort in 173 minutes (on 3,400 nodes). —Owen O’Malley Apache Hadoop and the Hadoop Ecosystem Although Hadoop ... }' done The script loops through the compressed year files, first printing the year, and then processing each file using awk. The awk script extracts two fields from the data: the air temperature ... a missing value in the NCDC dataset) and whether the quality code indicates that the reading is not suspect or erroneous. If the reading is OK, the value is compared with the maximum value seen...

Ngày tải lên: 12/02/2014, 12:20

... define the payload of the stanza. The payload might be presented to a user or processed in some automated fashion as determined by the specification that defines the namespace of the payload. The ... members of the developer community decided to seek a wider review of the core protocols by formal- izing them within the IETF, which has standardized most of the core technologies for the Internet ... need. Use these appendixes as reference material on an ongoing basis, or as a quick index to the myriad of XMPP resources available on the Internet. xiv | Preface XMPP: The Definitive Guide CHAPTER...

Ngày tải lên: 16/02/2014, 15:20

... of their technology, including telecom. In his book Crossing the Chasm (HarperBusiness), Geoffrey Moore opines, The idea that the value of the system will be discovered rather than known at the ... Documentation lowers the barrier to entry and helps people contemplate the possibilities. Produced with the generous support of O’Reilly Media, Asterisk: The Definitive Guide is the third edition ... 540 Table of Contents | xv CHAPTER 1 A Telephony Revolution First they ignore you, then they laugh at you, then they fight you, then you win. —Mahatma Gandhi When we first set out—nearly five years...

Ngày tải lên: 17/02/2014, 01:20

... 111 1950 22 The output is the same as the Java program, so the next step is to run it using Hadoop itself. The hadoop command doesn’t support a Streaming option; instead, you specify the Streaming ... look at the details of this model in later chapters, but the important point for the present discussion is that there are two parts to the computation, the map and the reduce, and it’s the interface ... data together and having the tools to analyze it, the Rackspace engineers were able to gain an understanding of the data that they otherwise would never have had, and, furthermore, they were...

Ngày tải lên: 29/03/2014, 09:20

... java.io.IOException; import org .apache. hadoop. io.IntWritable; import org .apache. hadoop. io.LongWritable; import org .apache. hadoop. io.Text; import org .apache. hadoop. mapred.MapReduceBase; import org .apache. hadoop. mapred.Mapper; import ... data together and having the tools to analyze it, the Rackspace engineers were able to gain an understanding of the data that they otherwise would never have had, and, furthermore, they were ... look at the details of this model in later chapters, but the important point for the present discussion is that there are two parts to the computation, the map and the reduce, and it’s the interface...

Ngày tải lên: 28/04/2014, 16:04

... record of the highest found so far. The third piece of code runs the MapReduce job (see Example 2-5). Analyzing the Data with Hadoop | 23 www.it-ebooks.info Hadoop: The Definitive Guide, Third ... methods control the output types for the map and the reduce functions, which are often the same, as they are in our case. If they are different, then the map output types can be set using the methods setMapOutputKeyClass() ... chapters, but the important point for the present discussion is that there are two parts to the computation, the map and the reduce, and it’s the interface between the two where the “mixing” occurs....

Ngày tải lên: 03/05/2014, 20:55

... out of context start tag. In fact, they're really the same error. The problem is never caused by the missing end tag per se, rather it's caused by the fact that something following ... in the test chapter. It is unremarkable in every regard. This is a paragraph in the test chapter. It is The telltale sign that SP could not find the DTD, or some module of the DTD, is the ... The xp distribution includes several sample programs. One of these programs, Time, performs a validating parse of the document and prints the amount of time required to parse the DTD and the...

Ngày tải lên: 21/01/2014, 06:20

... marketing policy to define what the term means for your entire organization so there’s no confusion as to when the social media guidelines apply and when they dont. ã Set up a basic set of ... newsfeed. In other words, Facebook users can easily see when their friends are interacting with or commenting about your brand and they can do the same. Marketo’s current Facebook Page ã The timeline ... helpful a link would be to another user before posting it ã 68% share as an advertisement for themselves, to give others a better sense of who they are ã 73% say it helps them find people with common...

Ngày tải lên: 18/02/2014, 07:20

... classes: These model the entities, or data, in the system. ã Boundary classes: These essentially provide the interface between the system and the outside world, usually the user interface. The interface ... combining his username with the company domain name. The method name, the return type, and the list of parameters and their types are together known as the signature of the method. Creating an ... for further reading. Downloading the Code The full code for the examples found in Part II of the book is available for download from the book’s page on the Apress website (www.apress.com). There...

Ngày tải lên: 18/03/2014, 23:20

... talk to each other over networks. The two protocols that give the suite its name are among the most important, but there are many others, and we shall meet some of them later. These protocols ... one is the Win32 Apache) . Download it into, say, c:\temp, and then run it from the Win32 Start menu's Run option. The executable will create an Apache directory, C:\Program Files \Apache, ... where they had evidently been written by someone who was not a native English speaker, we rearranged the syntax a little. As they stand, they save the reader having to break off and go to the Apache...

Ngày tải lên: 25/03/2014, 10:39

... name. The other is to use the table name in the WHERE clause of the SELECT statement. The following script will list all the triggers defined on a table: DESCRIPTION This script lists the definition ... after the other, instead of the more usual horizontal format. The result makes for a very readable display of the trigger definition. DESCRIPTION This script lists the definition of the specified ... have access The only time the ALL_SYNONYMS view would show you all the synonyms in the database would be if you happened to have access to all the objects in the database. Running the LIST_SYN.SQL...

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 05/07/2014, 04:20

Ngày tải lên: 13/08/2014, 08:21

Ngày tải lên: 13/08/2014, 08:21