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	Distributed Hadoop1.2.1 cluster installation
	Add Date : 2018-11-21



	Installation is very simple, copy the downloaded Hadoop file to the appropriate directory, and then compressed to, the key is first to be installed JDK, pre-configured to Linux. Now I put my record operating procedure is as follows, for your reference: HadoopSrv01 log on to the machine, proceed as follows: 1: su - grid 2: tar -xvf hadoop-1.2.1-bin.tar.gz 3: After unpacking, will add a hadoop-1.2.1 directory under / home / grid directory 4: cd hadoop-1.2.1 Creating tmp directory mkdir tmp 5: cd conf directory of hadoop-env.sh, core-site.xml, hdfs-site.xml, mapred-site.xml, masters, slaves configuration file 6: Modify hadoop-env.sh file, only you need to set export JAVA_HOME = / usr / java / jdk1.8.0 to the other without modification. 7: Modify the core-site.xml file, add the following <Property> <Name> fs.default.name </ name> <Value> hdfs: // HadoopSrv01: 9000 </ value> </ Property> <Property> <Name> hadoop.tmp.dir </ name> <Value> /home/grid/hadoop-1.2.1/tmp </ value> </ Property> </td> <td background="../../c6.jpg"> </td> <td background="../../c4.jpg"> </td> <td background="../../c6.jpg"> </td> </tr> <tr> <td height="20" background="../../c4.jpg"> </td> <td align="center" valign="middle"> </td> <td background="../../c6.jpg"> </td> <td background="../../c4.jpg"> </td> <td background="../../c6.jpg"> </td> </tr> <tr> <td height="20" background="../../c4.jpg"> </td> <td align="center" valign="middle"> </td> <td background="../../c6.jpg"> </td> <td background="../../c4.jpg"> </td> <td background="../../c6.jpg"> </td> </tr> <tr> <td height="20" background="../../c4.jpg"> </td> <td align="center" valign="middle"> </td> <td background="../../c6.jpg"> </td> <td background="../../c4.jpg"> </td> <td background="../../c6.jpg"> </td> </tr> <tr> <td height="20" background="../../c4.jpg"> </td> <td align="left" valign="middle">More:</td> <td background="../../c6.jpg"> </td> <td background="../../c4.jpg"> </td> <td background="../../c6.jpg"> </td> </tr> <tr> <td height="20" background="../../c4.jpg"> </td> <td align="center" valign="middle"><div align="left"> <a href='http://www.newfreesoft.com/programming/explore_android_sqlite3_multithreading_3571/' target='_blank' border=0> - 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