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From Stack <st...@duboce.net>
Subject [VOTE] Commit hdfs-1024 to 0.20 branch
Date Fri, 02 Apr 2010 17:38:51 GMT
Please on committing HDFS-1024 to the hadoop 0.20 branch.


HDFS-1024 fixes possible trashing of fsimage because of failed copy
from 2NN and NN.  Ordinarily, possible corruption of this proportion
would merit commit w/o need of a vote only Dhruba correctly notes that
UNLESS both NN and 2NN are upgraded, HDFS-1024 becomes an incompatible
change (the NN<->2NN communication will fail always).  IMO, this
incompatible change can be plastered over with a release note; e.g.
WARNING, you MUST update NN and 2NN when you go to 0.20.3 hadoop.  If
you agree with me, please vote +1 on commit.


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