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From Harsh J <ha...@cloudera.com>
Subject Re: about how the hdfs choose datanodes to store the files
Date Thu, 05 May 2011 17:46:56 GMT
Hello again xu,

Apologies over a bad mistake in the earlier post, I believe I had it
wrong. The replication is done as you had explained, so do not get
confused by my saying that the NN manages it after the writes (I've
said this around as well, learnt the right thing thanks to Matthew
Foley today!).

i.e. Please disregard this:

> The writing process originally only writes only a single copy. The
> replication is done by the NN later-on (as part of DN commands sent
> via heartbeats).

-- 
Harsh J

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