I run some simple jobs (teragen, terasort, etc.) on a 7 nodes cluster deployed with 1.2.1-rc0 and tried configure with new topology layer - node group. Everything seems to be fine so far.
So +1 (non-binding).
----- Original Message -----
From: "Matt Foley" <[hidden email]>
To: [hidden email] Sent: Thursday, July 25, 2013 5:08:20 AM
Subject: [VOTE] Hadoop 1.2.1 release candidate 0 -- stable release
Verified digests and gpg signature. Started a non-secure single node
cluster; ran a few fs commands, some example mr jobs. Verified node-group
topology functional tests on a 4 physical host 8 virtual node cluster.