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Both sides previous revision Previous revision 2013/02/08 14:36 popel Milan improved our Hadoop2012/01/31 12:43 straka 2012/01/31 09:41 straka Change Perl commandline syntax.2012/01/29 23:52 majlis 2012/01/29 23:51 majlis 2012/01/29 20:52 straka 2012/01/29 20:52 straka 2012/01/29 20:51 straka 2012/01/28 15:33 majlis 2012/01/26 23:11 straka 2012/01/25 22:01 straka 2012/01/25 00:51 straka 2012/01/25 00:51 straka 2012/01/25 00:48 straka 2012/01/25 00:45 straka 2012/01/24 19:05 straka vytvořeno Go		2013/02/08 14:36 popel Milan improved our Hadoop2012/01/31 12:43 straka 2012/01/31 09:41 straka Change Perl commandline syntax.2012/01/29 23:52 majlis 2012/01/29 23:51 majlis 2012/01/29 20:52 straka 2012/01/29 20:52 straka 2012/01/29 20:51 straka 2012/01/28 15:33 majlis 2012/01/26 23:11 straka 2012/01/25 22:01 straka 2012/01/25 00:51 straka 2012/01/25 00:51 straka 2012/01/25 00:48 straka 2012/01/25 00:45 straka 2012/01/24 19:05 straka vytvořeno Go Last revision Both sides next revision
courses:mapreduce-tutorial:step-7 [2012/01/31 09:41] straka Change Perl commandline syntax.		courses:mapreduce-tutorial:step-7 [2012/01/31 12:43] straka
Line 12:		Line 12:
	Running cluster is identified by its master. When running a Hadoop job using Perl API, existing cluster can be used by		Running cluster is identified by its master. When running a Hadoop job using Perl API, existing cluster can be used by
	perl script.pl -jt cluster_master:9001 ...		perl script.pl -jt cluster_master:9001 ...
		+
		+	===== Running Hadoop jobs from now on =====
		+
		+	From now on, it is best to run MR jobs using a one-machine cluster -- create a one-machine cluster using ''hadoop-cluster'' for 3h (10800s) and run jobs using ''-jt cluster_master''. Running the scripts locally without any cluster has several disadvantages, most notably having only one reducer per job.
	===== Example =====		===== Example =====

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