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Posts: 2
Registered: ‎09-13-2017

Basic Question on Hadoop

Can we use a replication factor of 3 with only one Data node ? 

Your reply is very much appreciated

Posts: 630
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Registered: ‎08-16-2016

Re: Basic Question on Hadoop

Technically, yes. The system will give warnings and you will show a lot of under-replicated blocks but it will continue to function.

It is better to just adjust the replication factor unless this will be an short lived cluster.
New Contributor
Posts: 2
Registered: ‎09-13-2017

Re: Basic Question on Hadoop

Thanks for the update.

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