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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2010/12/02 20:45:41 UTC

[Hadoop Wiki] Update of "HDFS-RAID" by PatrickKling

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The "HDFS-RAID" page has been changed by PatrickKling.
The comment on this change is: Added RaidFSCK instructions..
http://wiki.apache.org/hadoop/HDFS-RAID?action=diff&rev1=6&rev2=7

--------------------------------------------------

  
  === RaidShell ===
  
- (currently under development)
- 
  The RaidShell is a tool that allows the administrator to maintain and inspect a DRFS. It supports commands for manually triggering the 
  recomputation of bad data blocks and also allows the administrator to display a list of irrecoverable files (i.e., files for which too
  many data or parity blocks have been lost).
+ 
+ To validate the integrity of a file system, run RaidFSCK as follows:
+ {{{
+ $HADOOP_HOME/bin/hadoop org.apache.hadoop.raid.RaidShell -fsck [path]
+ }}}
+ 
+ This will print a list of corrupt files (i.e., files which have lost too many
+ blocks and can no longer be fixed by Raid).
+ 
  
  === ErasureCode ===