[ Skip to the content ]

Institute of Formal and Applied Linguistics Wiki


[ Back to the navigation ]

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
courses:mapreduce-tutorial:step-6 [2012/02/05 19:54]
straka
courses:mapreduce-tutorial:step-6 [2012/02/06 13:55] (current)
straka
Line 25: Line 25:
   * for any job, all Hadoop settings   * for any job, all Hadoop settings
  
-===== If things go wrong ===== 
  
-If the Hadoop job crashes, there are several ways you can do: 
-  * run the computation locally in single threaded mode. This is more useful for Hadoop jobs written in Java, because then you can use a debugger. When using Perl API, new subprocess are created for Perl tasks anyway. 
-  * use standard error output for log messages. You can access the stderr logs of all Hadoop tasks using the web interface. 
  
 ===== Example ===== ===== Example =====

[ Back to the navigation ] [ Back to the content ]