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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "HadoopJavaVersions" by EliCollins
Date Thu, 28 Jul 2011 18:16:23 GMT
Dear Wiki user,

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

The "HadoopJavaVersions" page has been changed by EliCollins:

  Hadoop is built and tested on Oracle JDKs.  Here are the known JDKs in use or have been
tested and their status:
   ||'''Version''' ||'''Status''' ||'''Reported By''' ||
+  ||1.6.0_16 ||Good ||Cloudera ||
   ||1.6.0_18 ||Avoid ||Many ||
   ||1.6.0_19 ||Avoid ||Many ||
   ||1.6.0_20 ||Good ||LinkedIn, Cloudera ||
||Good ||Yahoo!, Cloudera ||
+  ||1.6.0_24 ||No known issues ||Cloudera ||
  The Sun JVM has 32-bit and 64-bit modes. In a large cluster the NameNode and JobTracker
need to run in 64-bit mode to keep all their data structures in memory. The workers can be
set up for either 32-bit or 64-bit operation, depending upon preferences and how much memory
the individual tasks need.

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