A tool to plot the locations of the blocks of a directory
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Key: HADOOP-2791
URL: https://issues.apache.org/jira/browse/HADOOP-2791
Project: Hadoop Core
Issue Type: New Feature
Reporter: Owen O'Malley
Fix For: 0.17.0
It would be very useful to have a command that we could give a hdfs directory
to, that would use fsck to find the block locations of the data files in that
directory and group them by host and display the distribution graphically. We
did this by hand and it was very for finding a skewed distribution that was
causing performance problems. The tool should also be able to group by rack id
and generate a similar plot.
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