Where to check the default Hadoop 2 (YARN) configuration values for:

HDFS: hdfs-site.xml
YARN: yarn-site.xml
MapReduce: mapred-site.xml

Default Hadoop 2 (YARN) configuration values for Hadoop 2.2.0 from Apache Hadoop website:

HDFS: http://hadoop.apache.org/docs/r2.2.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml

YARN: https://hadoop.apache.org/docs/r2.2.0/hadoop-yarn/hadoop-yarn-common/yarn-default.xml

MapReduce: https://hadoop.apache.org/docs/r2.2.0/hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml

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