How to use hadoop for text file?

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Use Hadoop Pig to load data from text file w/ each record on multiple lines?

I have my data file in the following format: U: john T: 2011-03-03 12:12:12 L: san diego, CA U: john T: 2011-03-03 12:12:12 L: san diego, CA What's the best way to read this file w/ Hadoop/pig/whatever for analysis?

Answer:

Is there any way you can control the way the data is being written? Writing an process that moves this...

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Other solutions

How to use while loop for text file?

I am having problem with the while loop for the text file. Can anyone help me please? Much help is appreciated. Thanks. Part A Instead of writing a separate line to read each word (or number / item) in your text file use a while loop and have the ending...

Answer:

I think you need something like String fil; while ( (file = myScan.next())!= null){ System.out.println...

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How do I use an external text file to dynamically insert text into a text field in flash 8 professional?

the only thing I have been able to find so far is how to do it in flash mx and I can not find out how the text file should look. Is it just the name of the text, an equal sign and then what u want it to say, or do u have to put an "&" in...

Answer:

No you don't need the text file to have HTML tags.* The text file can hold multiple variables just like...

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How to use stop words in a text file so that it does not get counted in a word count program using java?

I have a text file from where the count of each words has to be displayed and words like "to,the,and" should not be counted. I have program for counting but i don't know to use stop words. Any help? This is the count program import java.util...

Answer:

Create a TreeSet and fill it with your stop words. Before entering the logic to increment the frequency...

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How to convert a text file to binary c++ (i use ubuntu).?

hey i was just wondering how to convert a text file into binary format. i have a database application which uses binary files, hence to test it properly need to convert the text file to binary. the exact code would be great. thankyou

Answer:

http://www.gamedev.net/reference/article…

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JAVA GUI : How to use button listener to read and display text file?

What i want to happen in my program is when the button is clicked, it will initiate a button listener to read a text file and display the text in a dialog box. Can anyone give examples on how to do this?

Answer:

Are you planning some thing like editor? May be in your actionPerformed method you can write the following...

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How can you use a variable as a text file name in visual basic?

When i press a button in visual basic it creates a variable, i would like to use that variable as the name of a text file, is this possible?

Answer:

You can use a string variable to hold the file name . The path and name of the file can be hard coded...

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How can I use CShell and awk to find some words which were not repeated in a text file?

I use CShell+Awk to process a text file, and I want find some words were not repeated. Could you give me some suggestions?

Answer:

fmt -1 FILE | tr A-Z a-z | tr -dc 'a-z\n' | sort | uniq -u This produces a list of all the words that...

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How do you use preg_match to search for a string inside of a text file in PHP?

I tried to do this but it doesn't work. if (preg_match("/testFile.txt/",$a)) { echo "A match was found."; } else { echo "A match was not found."; } I'm looking to see if a is part of the text file but when i run it won't...

Answer:

First of all, LEARN THE FREAKING PHP LANGUAGE! Secondly (this is where I'll help you), this is how you...

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How do I use htaccess to redirect a bunch IPs to a text file on my server?

Using htaccess, I'd like to redirect all requests from a random set of IPs to a text file explaining that the IP has been banned. What would be the easiest and most efficient way to do this? I'm trying to stop splogs and comment spammers from ever reaching...

Answer:

A common way of doing this is: <Directory /docroot> RewriteEngine on RewriteCond %{REMOTE_ADDR...

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