Patrick Hunt created HADOOP-8393:
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Summary: hadoop-config.sh missing variable exports, causes Yarn
jobs to fail with ClassNotFoundException MRAppMaster
Key: HADOOP-8393
URL: https://issues.apache.org/jira/browse/HADOOP-8393
Project: Hadoop Common
Issue Type: Bug
Components: scripts
Reporter: Patrick Hunt
Assignee: Patrick Hunt
If you start a pseudo distributed yarn using "start-yarn.sh" you need to
specify exports for HADOOP_COMMON_HOME, HADOOP_HDFS_HOME, YARN_HOME,
YARN_CONF_DIR, and HADOOP_MAPRED_HOME in hadoop-env.sh (or elsewhere),
otherwise the spawned node manager will be missing these in it's environment.
This is due to start-yarn using yarn-daemons. With this fix it's possible to
start yarn (etc...) with only HADOOP_CONF_DIR specified in the environment.
Took some time to track down this failure, so seems worthwhile to fix.
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