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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3489) hdfs fsck usage message is outdated
Date Fri, 01 Jun 2012 18:35:22 GMT
Andy Isaacson created HDFS-3489:

             Summary: hdfs fsck usage message is outdated
                 Key: HDFS-3489
                 URL: https://issues.apache.org/jira/browse/HDFS-3489
             Project: Hadoop HDFS
          Issue Type: Bug
    Affects Versions: 2.0.0-alpha
            Reporter: Andy Isaacson
            Assignee: Andy Isaacson
            Priority: Minor

The help message from "hdfs fsck" is misleading in several ways.
Usage: DFSck <path> [-list-corruptfileblocks | [-move | -delete | -openforwrite] [-files
[-blocks [-locations | -racks]]]]
        <path>  start checking from this path
        -move   move corrupted files to /lost+found
        -delete delete corrupted files
        -files  print out files being checked
        -openforwrite   print out files opened for write
        -list-corruptfileblocks print out list of missing blocks and files they belong to
        -blocks print out block report
        -locations      print out locations for every block
        -racks  print out network topology for data-node locations
                By default fsck ignores files opened for write, use -openforwrite to report
such files. They are usually  tagged CORRUPT or HEALTHY depending on their block allocation
Generic options supported are
-conf <configuration file>     specify an application configuration file
-D <property=value>            use value for given property
-fs <local|namenode:port>      specify a namenode
-jt <local|jobtracker:port>    specify a job tracker
-files <comma separated list of files>    specify comma separated files to be copied
to the map reduce cluster
-libjars <comma separated list of jars>    specify comma separated jar files to include
in the classpath.
-archives <comma separated list of archives>    specify comma separated archives to
be unarchived on the compute machines.

The general command line syntax is
bin/hadoop command [genericOptions] [commandOptions]
 - the first line should not say "DFSck"
 - the -fs option prefers a hdfs:// URI rather than a bare namenode:port pair

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