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hadoopmapr

ERROR terasort.TeraSort: Input path does not exist: maprfs:/user/user01/–DXmx1024m

While Running the terasort application by modifying the parameters I'm getting the following Error.

15/05/24 21:41:42 ERROR terasort.TeraSort: Input path does not exist: maprfs:/user/user01/–DXmx1024m

Command I'm running for executing the jog

$ hadoop jar /opt/mapr/hadoop/hadoop-0.20.2/hadoop-0.20.2-dev-\
examples.jar terasort –DXmx1024m –Dmapred.reduce.tasks=2 \
-Dio.sort.mb=1 /user/user01/6/TERA_IN /user/user01/6/TERA_OUT_2

If I remove these Parameters –DXmx1024m –Dmapred.reduce.tasks=2 -Dio.sort.mb=1 then everything is working fine.

I think i'm facing the below bug which is posted on jira but its for windows https://issues.apache.org/jira/browse/HADOOP-8536

Solution

  • It is just a copy/paste issue from the MapR LAB GUIDE.

    Just change '–' to '-' from the VM input parameters.

    See the execution with copy/paste:

    -bash-4.1$ hadoop jar /opt/mapr/hadoop/hadoop-0.20.2/hadoop-0.20.2-dev-\
> examples.jar terasort –DXmx1024m –Dmapred.reduce.tasks=2 \
> -Dio.sort.mb=1 /user/user01/6/TERA_IN /user/user01/6/TERA_OUT_2
15/10/26 15:24:57 INFO terasort.TeraSort: starting
15/10/26 15:24:59 ERROR terasort.TeraSort: Input path does not exist: maprfs:/user/user01/–DXmx1024m
-bash-4.1$

    See the execution with the command line fixed:

    -bash-4.1$ hadoop jar /opt/mapr/hadoop/hadoop-0.20.2/hadoop-0.20.2-dev-examples.jar terasort -DXmx1024m -Dmapred.reduce.tasks=2 -Dio.sort.mb=1 /user/user01/6/TERA_IN /user/user01/6/TERA_OUT_2
15/10/26 15:25:26 INFO terasort.TeraSort: starting
15/10/26 15:25:27 INFO input.FileInputFormat: Total input paths to process : 2
....