If you cannot use Virtualization then on a single node you can only have one of each service. One Namenode One Snamenode One Datanode one Tasktracker and one Jobtracker. If you use a VM you can create extra DN or TT and test it out.
From: [email protected] To: "'Amjad Syed '"@mail.visolve.com CC: [email protected] Subject: Re: Hadoop testing with 72GB HDD? Date: Mon, 5 Jan 2015 13:02:55 +0530 Yes Amjad, Virtualization is nothing but a layer where you can different instances of Operating systems running on same machine. I don’t see any difference in using real Hardware with Virtualization. One advantage with Virtualization is you can have multiple instances of OS on Same machine and also you can use for various purposes. Where as in dedicated hardware we have this limited to 2 nodes (in case of 2 machines used). Thanks and Regards,S.RagavendraGanesh Hadoop Support TeamViSolve Inc.|www.visolve.com From: Amjad Syed [mailto:[email protected]] Sent: Monday, January 05, 2015 11:30 AM To: [email protected] Subject: Re: Hadoop testing with 72GB HDD? Thanks jeffrey, But if i want to do it using Centos 7.0 without virtualization on my machines, is it possible? On Mon, Jan 5, 2015 at 8:45 AM, Jeffrey Rodriguez <[email protected]> wrote: Yes it can be done through virtualization providing you can setup VMWare in your hardware for example ( you may find other options for virtualizing). If you needed to do a proof of concept though I would advice to go with a cloud vendor like IBM Bluemix or Amazon EC. You may have a better performance experience using cloud instances thaat you can provision, use and discard. On Sun, Jan 4, 2015 at 9:29 PM, Amjad Syed <[email protected]> wrote: Hello, My manager has asked me to do a proof of concept on old HP DL380 G6 Quadcore systems having 12GB RAM and 4*72GB SAS Drives. My question is it possible to make a 2 node hadoop cluster with this hardware? I have read that minimum HDD should be 1TB .
