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Posted to common-commits@hadoop.apache.org by Apache Wiki <wi...@apache.org> on 2007/10/26 11:21:28 UTC
[Lucene-hadoop Wiki] Update of "HowToConfigure" by Arun C Murthy
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The following page has been changed by Arun C Murthy:
http://wiki.apache.org/lucene-hadoop/HowToConfigure
The comment on the change is:
Added a section on changes to configuration in 0.15.0
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- = How To Configure Hadoop =
+ = How To Configure Hadoop - ''hadoop-0.15.0 and later'' =
+
+ Hadoop's configuration has been significantly changed in the hadoop-0.15.0 release (http://issues.apache.org/jira/browse/HADOOP-785).
+
+ Important changes:
+ 1. Primarily hadoop-site.xml is now override-able by users via job.xml and other additional configuration resources.
+ 2. mapred-default.xml is no longer supported.
+ 3. Cluster-admins should judiciously use the new notion of *final* parameters to ensure critical config parameters aren't override-able (see 1).
+
+ Please consult the javadocs for the Configuration class in the hadoop-0.15.0 release for more details.
+
+ = How To Configure Hadoop - ''pre hadoop-0.15.0'' =
== Primary XML Files ==