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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2010/09/10 00:29:30 UTC

[Hadoop Wiki] Trivial Update of "FAQ" by SomeOtherAccount

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http://wiki.apache.org/hadoop/FAQ?action=diff&rev1=73&rev2=74

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      </description>
    </property>
  }}}
- <<Anchor(30)>> ''2.1 [[#A30|When writing a New InputFormat, what is the format for the array of string returned by InputSplit\#getLocations()?]]''
+ <<Anchor(30)>> ''30. [[#A30|When writing a New InputFormat, what is the format for the array of string returned by InputSplit\#getLocations()?]]''
  
  It appears that DatanodeID.getHost() is the standard place to retrieve this name, and the machineName variable, populated in DataNode.java\#startDataNode, is where the name is first set. The first method attempted is to get "slave.host.name" from the configuration; if that is not available, DNS.getDefaultHost is used instead.
  
@@ -284, +284 @@

   2. Use the UNIX mv command to move the individual blocks and meta pairs from one directory to another on each host
   3. Restart the HDFS
  
+ <<BR>> <<Anchor(32)>> '''32. [[#A32|How do you gracefully stop a running job?]]'''
+ 
+ hadoop job -kill JOBID
+