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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "AmazonEC2" by TomWhite
Date Wed, 03 Sep 2008 16:42:00 GMT
Dear Wiki user,

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

The following page has been changed by TomWhite:
http://wiki.apache.org/hadoop/AmazonEC2

The comment on the change is:
Mention new S3 bucket for public AMIs.

------------------------------------------------------------------------------
       * To see which versions are publicly available type: {{{
  % ec2-describe-images -x all | grep hadoop
  }}}
-      * The default value for `S3_BUCKET` (`hadoop-ec2-images`) is for public images. You
normally only need to change this if you want to use a private image you have built yourself.
     
+      * The default value for `S3_BUCKET` (`hadoop-ec2-images`) is for public images. Images
for Hadoop version 0.17.1 and later are in the `hadoop-images` bucket, so you should change
this variable if you want to use one of these images. You also need to change this if you
want to use a private image you have built yourself.      
     * ('''Pre 0.17''') Hadoop cluster variables (`GROUP`, `MASTER_HOST`, `NO_INSTANCES`)
       * `GROUP` specifies the private group to run the cluster in. Typically the default
value is fine.
       * `MASTER_HOST` is the hostname of the master node in the cluster. You need to set
this to be a hostname that you have DNS control over - it needs resetting every time a cluster
is launched. Services such as [http://www.dyndns.com/services/dns/dyndns/ DynDNS] and [http://developer.amazonwebservices.com/connect/thread.jspa?messageID=61609#61609
the like] make this fairly easy.

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