Hadoop 2.6.0: Basic error “starting MRAppMaster” after installing
问题 I have just started to work with Hadoop 2. After installing with basic configs, I always failed to run any examples. Has anyone seen this problem and please help me? And the error is something like Error starting MRAppMaster java.lang.RuntimeException: java.lang.reflect.InvocationTargetException This is the log 20152015-01-06 11:56:23,194 INFO [main] org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Created MRAppMaster for application appattempt_1420510526926_0002_000001 2015-01-06 11:56:23,362