DataNode makeInstance should report the directory list when failing to start up

Key: HDFS-884
URL: https://issues.apache.org/jira/browse/HDFS-884
Project: Hadoop HDFS
Issue Type: Improvement
Components: data-node
Affects Versions: 0.22.0
Reporter: Steve Loughran
Assignee: Steve Loughran
Priority: Minor

When {{Datanode.makeInstance()}} cannot work with one of the directories in dfs.data.dir, it logs this at warn level (while losing the stack trace).

It should include the nested exception for better troubleshooting. Then, when all dirs in the list fail, an exception is thrown, but this exception does not include the list of directories. It should list the absolute path of every missing/failing directory, so that whoever sees the exception can see where to start looking for problems: either the filesystem or the configuration.

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postedJan 8, '10 at 6:05p
activeJan 8, '10 at 6:05p

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Steve Loughran (JIRA): 1 post



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