Re: Doubt regarding Replication Factor

[Brian Bockelman]

On Aug 12, 2009, at 2:11 PM, Konstantin Shvachko wrote:

You can try it: start a 3 node cluster and create a file with replication 5.

be fully replicated.

The answer is that each data-node can store only one replica of a block. So in your case you will get an exception on close() saying the file cannot

Brian

I'm not sure if that's true. You only get an exception if the system cannot provide the minimum replication factor. I.e, if you ask for 5 replicas and the minimum replicas is 3, then you only get an exception if HDFS can't meet 3 replicas. Am I recalling this wrong? We have "discovered" this fact at least once :)

Thanks,
--Konstantin

Rakhi Khatwani wrote:

Hi,

than the number of nodes in the cluster.

factor to 5.

one copy per node?
Regards,
Raakhi Khatwani

I just wanted to know what if we have set the replication factor greater for example, i have only 3 nodes in my cluster but i set the replication will it create 3 copies and save it in each node, or can it create more than

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