[MAPREDUCE-2398] MRBench: setting the baseDir parameter has no effect

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: benchmarks
• Hadoop Flags: Reviewed
• Assignee: Wilfred Spiegelenburg
• Reporter: Michael G. Noll
• Created: 21/Mar/11 09:33
• Updated: 26/Feb/20 05:50
• Resolved: 21/Apr/16 12:28

Description

The optional -baseDir parameter lets user specify the base DFS path for output/input of MRBench.

However, the two private variables INPUT_DIR and OUTPUT_DIR (MRBench.java) are not updated in the case that the default value of -baseDir is actually overwritten by the user. Hence any input and output is always written to the default locations (/benchmarks/MRBench/...), even though the user-supplied location for -baseDir is created (and eventually deleted again) on HDFS.

The bug affects at least Hadoop 0.20.2 and the current trunk (r1082703) as of March 21, 2011.