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From Brahma Reddy Battula <brahmareddy.batt...@huawei.com>
Subject RE: Yarn not picking up the Resource manager configurations
Date Sun, 21 May 2017 05:22:41 GMT

Looks configurations(mainly yarn-site.xml here which you pointed) are not loaded in classpath.
Can you check the output of “hadoop classpath”..?



Regards
Brahma Reddy Battula

From: Dhanushka Parakrama [mailto:parakrama1282@gmail.com]
Sent: 19 May 2017 16:40
To: user@hadoop.apache.org
Subject: Yarn not picking up the Resource manager configurations

Hi All
I have setup the multi node hadoop cluster . but when is run the simple map reduce job it
gives me the following error the in  the data nodes container log .

Im running the hadoop 2.7.3 version

In namenode which contain resource manager as well . i ran below job

hadoop jar hadoop-mapreduce-examples-2.7.3.jar wordcount /words  /output

Error
====

tryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2017-05-19 07:57:14,340 INFO [main] org.apache.hadoop.ipc.Client: Retrying connect to server:
0.0.0.0/0.0.0.0:8030<http://0.0.0.0/0.0.0.0:8030>. Already tried 8 time(s); retry policy
is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
2017-05-19 07:57:15,341 INFO [main] org.apache.hadoop.ipc.Client: Retrying connect to server:
0.0.0.0/0.0.0.0:8030<http://0.0.0.0/0.0.0.0:8030>. Already tried 9 time(s); retry policy
is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)

Configurations
===========
vi .barshrc file

export JAVA_HOME=/home/ubuntu/jdk1.8.0_45
export HADOOP_HOME=/usr/local/hadoop/current
#export PATH=$JAVA_HOME/bin:$PATH
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
export YARN_CONF_DIR=$HADOOP_HOME/etc/hadoop
export ZOOKEEPER_HOME=/usr/local/zookeeper/current

export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$ZOOKEEPER_HOME/bin

vi .yarn-site.xml file


<configuration>

<!-- Site specific YARN configuration properties -->

<property>
   <name>yarn.nodemanager.aux-services</name>
   <value>mapreduce_shuffle</value>
 </property>

<property>
   <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
   <value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>

<property>
    <name>yarn.resourcemanager.hostname</name>
    <value>nn1.cluster.com<http://nn1.cluster.com></value>
</property>

 <property>
      <name>yarn.resourcemanager.scheduler.address</name>
      <value>nn1.cluster.com:8030<http://nn1.cluster.com:8030></value>
 </property>


</configuration>


Can any expert help me with this issue , im stuck at this point
Thank You



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