hadoop-common-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Update of "HowToDebugMapReducePrograms" by OwenOMalley
Date Mon, 18 Jun 2007 05:49:40 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by OwenOMalley:
http://wiki.apache.org/lucene-hadoop/HowToDebugMapReducePrograms

------------------------------------------------------------------------------
  
  This can be extremely useful to display debug information about the current record being
handled, or setting certain debug flags about the status of the mapper. While running locally
on a small data set can find many bugs, large data sets may contain pathological cases that
are otherwise unexepcted. This method of debugging can help catch those cases.
  
- == How to debug Hadoop Pipes programs
+ = How to debug Hadoop Pipes programs =
  
  In order to debug Pipes programs you need to keep the downloaded commands. 
  

Mime
View raw message