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Santosh Rakunde
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Cluster Sizing or How to Decide Number of Nodes in Cluster. This image has the answer
Cluster Sizing or How to Decide Number of Nodes in Cluster. This image has the answer.

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Zip File Using Java or ExecutorService Real time Example
From below two programs helps to do concurrent zipping of all files in folder using java. import java.io.File ; import java.io.FilenameFilter ; import java.util.ArrayList ; import java.util.Arrays ; import java.util.List ; import java.util.concurrent.Callab...

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Execute putty (Plink) commands (On remote Lix machine) from java
Execute putty commands (On remote Lix machine) from java 1.        Before executing this program
we need to download putty and Plink from below link. Put the
downloaded files in one folder. (ex: C:\putty)              http://www.chiark.greenend.org.uk/~sgta...

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Extract Text From (Image, PDF, Image embedded in PDF)
Extract Text From (Image, PDF, Image embedded in PDF) ---------------------------------------------------------------------------------------------------- Extracting text from the PDF is easy but extract text from the PDF that you received through scan is b...

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SFTP/FTP JAVA file upload or download from FTP Server
SFTP/FTP  JAVA  file upload or download from FTP Server 1
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41 private String host = "host" ; private String user = "user" ; private String pw...

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Split large multi header .csv file to multiple files in Java
Split large multi header .csv file to multiple files in Java Problem ---------------- if we have large .csv file with multiple header something like below. In multi Thread ETL process we need to split this file to multiple files on Header. AAA Column1 | Col...

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From JAVA to HDFS File operations : Read, write, copy, delete, create
From JAVA to HDFS File operations : Read, write, copy, delete, create 1.  creating the directory in the HDFS 2.  deleting the directory in the HDF 3.  copying file from local to HDFS 4. Read File From HDFS 5. Write File To HDFS Change below configuration to...

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Hadoop big data: Coveting Text files to Sequence File
Hadoop big data: Coveting Text files to Sequence File. package com. my . hadoop . example3 ; import java.io.IOException ; import org.apache.hadoop.conf.Configuration ; import org.apache.hadoop.fs.FSDataInputStream ; import org.apache.hadoop.fs.FileSystem ; ...

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Example to setting Map reduce properties from command prompt using -D
Execute command ---------------------------- >hadoop jar MapReduce-0.0.1-SNAPSHOT.jar com.my.cert.example.WordCount  -D mapred.reduce.tasks=2   word/input  file:///c:/hadoop/test1 The command is setting the number of reducer task to 2.  The command output t...

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Hadoop JAVA Map Reduce Sort by Value
Input  (test.txt) ------------ 1,50 2,20 3,30 4,10 5,15 6,25 7,55 8,35 9,70 output ---------------------------- 9 70 7 55 1 50 8 35 3 30 6 25 2 20 5 15 4 10 package com . my . cert . example ; import java.nio.ByteBuffer ; import org.apache.hadoop.conf.Confi...
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