Re: Issue in docs page : single cluster yarn setup - https://hadoop.apache.org/docs/r3.2.0/hadoop-project-dist/hadoop-common/SingleCluster.html#YARN_on_Single_Node

[Vinod Kumar Vavilapalli]

Good catch.

Please file a JIRA ticket here: https://issues.apache.org/jira/browse/YARN 
. Please put a patch up too if you 
can!

The second property is a configuration for MR jobs to figure out where the 
MapReduce framework libraries are.

Thanks
+Vinod

> On May 14, 2019, at 4:43 AM, Vishva Avu  wrote:
> 
> Hi,
> 
> Step 1 for
> https://hadoop.apache.org/docs/r3.2.0/hadoop-project-dist/hadoop-common/SingleCluster.html#YARN_on_Single_Node
> 
> Configure parameters as follows:
> 
> etc/hadoop/mapred-site.xml:
> 
> 
>
>mapreduce.framework.name
>yarn
>
> 
> 
> 
>
>mapreduce.application.classpath
>
> $HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*
>
> 
> 
> but setting this will throw an error when running yarn :
> 
> 2019-05-14 16:32:05,815 ERROR org.apache.hadoop.conf.Configuration: error
> parsing conf mapred-site.xml
> com.ctc.wstx.exc.WstxParsingException: Illegal to have multiple roots
> (start tag in epilog?).
> 
> This should be modified to
> 
>
>mapreduce.framework.name
>yarn
>
>
>mapreduce.application.classpath
>
> $HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*
>
> 
> 
> and also what is the function of second property here ?
> 
> I could not find the issues page where I can log this, so mailing it here
> 
> Regards,
> Vishva

Fwd: Issue in docs page : single cluster yarn setup - https://hadoop.apache.org/docs/r3.2.0/hadoop-project-dist/hadoop-common/SingleCluster.html#YARN_on_Single_Node

[Vishva Avu]

Hi,

Step 1 for
https://hadoop.apache.org/docs/r3.2.0/hadoop-project-dist/hadoop-common/SingleCluster.html#YARN_on_Single_Node

Configure parameters as follows:

etc/hadoop/mapred-site.xml:



mapreduce.framework.name
yarn





mapreduce.application.classpath

$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*



but setting this will throw an error when running yarn :

2019-05-14 16:32:05,815 ERROR org.apache.hadoop.conf.Configuration: error
parsing conf mapred-site.xml
com.ctc.wstx.exc.WstxParsingException: Illegal to have multiple roots
(start tag in epilog?).

This should be modified to


mapreduce.framework.name
yarn


mapreduce.application.classpath

$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*



and also what is the function of second property here ?

I could not find the issues page where I can log this, so mailing it here

Regards,
Vishva