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Posted to common-dev@hadoop.apache.org by "Vinod K V (JIRA)" <ji...@apache.org> on 2008/09/09 08:41:44 UTC

[jira] Created: (HADOOP-4123) HistoryViewer usage string is misleading.

HistoryViewer usage string is misleading.
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                 Key: HADOOP-4123
                 URL: https://issues.apache.org/jira/browse/HADOOP-4123
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
            Reporter: Vinod K V


$ hadoop job -history
Usage: JobClient [-history <jobOutputDir>]

The input is actually a history-location (for e.g., specified by hadoop.job.history.user.location) which happens to default to a jobOutputDir. The usage string should reflect this.

Also the restriction for history files to be in a _logs/history sub-directory is stringent. This could be changed so that history can be directly put in hadoop.job.history.user.location similar to how we store directly in hadoop.job.history.location. Seems like _logs/history is only intended to be used in conjuction with jobOutputDir, as a default location.

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