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From rajesh damera <d.rajes...@gmail.com>
Subject Re: how namenode decided which datanode are ready for a client
Date Tue, 19 May 2015 08:53:55 GMT
Datanode availability is monitored and decided by Namenode. You usually get
permissions, based on the type of user you are, to use a certain number of
nodes to run your jobs. These limitations are set by administrators at user

Warm regards
Rajesh Damera
On May 19, 2015 14:08, "Himawan Mahardianto" <mahardianto@ugm.ac.id> wrote:

> Hi guys, I know that every datanode where sending heartbeat to prove that
> their alive but what method are used by namenode to decide which datanode
> are available to client if all datanode where available?
> Best Regards

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