Vladimir Ozerov created IGNITE-3184:
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Summary: Hadoop: HADOOP_HOME should not be required if all other
environment variables are set.
Key: IGNITE-3184
URL: https://issues.apache.org/jira/browse/IGNITE-3184
Project: Ignite
Issue Type: Bug
Components: hadoop
Affects Versions: 1.5.0.final
Reporter: Vladimir Ozerov
Assignee: Ivan Veselovsky
Fix For: 1.7
*Problem*
Ignite internals require three pieces to create correct Hadoop classpath:
1) Path to common JARs;
2) Path to HDFS JARs;
3) Path map-reduce JARs.
These three paths could be set with environment variables HADOOP_COMMON_HOME,
HADOOP_HDFS_HOME and HADOOP_MAPRED_HOME respectively.
When all of them are set, HADOOP_HOME is no longer needed, but we will throw an
exception in this case. We should not do that.
*Solution*
Throw exception only in case we cannot resolve any of these paths.
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