HDFS-7156. Update fsck documentation. Contributed by Masahiro Yamaguch.
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@ -512,6 +512,8 @@ Release 2.6.0 - UNRELEASED
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HDFS-6956. Allow dynamically changing the tracing level in Hadoop servers
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(cmccabe)
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HDFS-7156. Update fsck documentation. (Masahiro Yamaguch via shv)
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OPTIMIZATIONS
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HDFS-6690. Deduplicate xattr names in memory. (wang)
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@ -77,7 +77,8 @@ public class DFSck extends Configured implements Tool {
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private static final String USAGE = "Usage: DFSck <path> "
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+ "[-list-corruptfileblocks | "
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+ "[-move | -delete | -openforwrite] "
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+ "[-files [-blocks [-locations | -racks]]]] [-showprogress]\n"
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+ "[-files [-blocks [-locations | -racks]]]] "
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+ "[-includeSnapshots] [-showprogress]\n"
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+ "\t<path>\tstart checking from this path\n"
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+ "\t-move\tmove corrupted files to /lost+found\n"
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+ "\t-delete\tdelete corrupted files\n"
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@ -82,32 +82,40 @@ HDFS Commands Guide
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See {{{./HdfsUserGuide.html#fsck}fsck}} for more info.
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Usage: <<<hdfs fsck [GENERIC_OPTIONS] <path>
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[-list-corruptfileblocks |
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[-move | -delete | -openforwrite]
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[-files [-blocks [-locations | -racks]]]
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[-showprogress]>>>
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[-includeSnapshots] [-showprogress]>>>
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*------------------+---------------------------------------------+
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|| COMMAND_OPTION || Description
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*------------------+---------------------------------------------+
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| <path> | Start checking from this path.
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*------------------+---------------------------------------------+
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| -move | Move corrupted files to /lost+found
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*------------------+---------------------------------------------+
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| -delete | Delete corrupted files.
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*------------------+---------------------------------------------+
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| -openforwrite | Print out files opened for write.
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*------------------+---------------------------------------------+
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| -files | Print out files being checked.
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*------------------+---------------------------------------------+
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| -blocks | Print out block report.
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*------------------+---------------------------------------------+
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| -locations | Print out locations for every block.
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*------------------+---------------------------------------------+
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| -racks | Print out network topology for data-node locations.
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*------------------+---------------------------------------------+
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| -showprogress | Print out dots for progress in output. Default is OFF
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| | (no progress).
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*------------------+---------------------------------------------+
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*------------------------+---------------------------------------------+
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|| COMMAND_OPTION || Description
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*------------------------+---------------------------------------------+
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| <path> | Start checking from this path.
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*------------------------+---------------------------------------------+
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| -move | Move corrupted files to /lost+found.
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*------------------------+---------------------------------------------+
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| -delete | Delete corrupted files.
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*------------------------+---------------------------------------------+
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| -files | Print out files being checked.
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*------------------------+---------------------------------------------+
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| -openforwrite | Print out files opened for write.
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*------------------------+---------------------------------------------+
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| | Include snapshot data if the given path
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| -includeSnapshots | indicates a snapshottable directory or
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| | there are snapshottable directories under it.
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*------------------------+---------------------------------------------+
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| -list-corruptfileblocks| Print out list of missing blocks and
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| | files they belong to.
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*------------------------+---------------------------------------------+
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| -blocks | Print out block report.
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*------------------------+---------------------------------------------+
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| -locations | Print out locations for every block.
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*------------------------+---------------------------------------------+
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| -racks | Print out network topology for data-node locations.
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*------------------------+---------------------------------------------+
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| -showprogress | Print out dots for progress in output. Default is OFF
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| | (no progress).
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*------------------------+---------------------------------------------+
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* Administration Commands
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