Sorry that was a typo on the amount of Master node although what is the limitation of how many masters you can have? Thank you for the feedback on the JBOD however, I am a little lost on the setup of it. Looking at a Dell 1950 or 2950 I do not see that as an option in the raid controller setup nor do I see that as an option when setting up Ubuntu. Is this a hardware or software option after the fact? Do I just setup raid0 do a ext root vol and then run a command to convert to JBOD. Sorry for the ignorance this is just new to me and I want to get it right the first time.
Thanks On 2/1/11 10:06 AM, "Sean Bigdatafun" <[email protected]> wrote: >- hbase-user > >No raid should be used, use JBOD instead. I do not think you can setup 3 >master nodes in current Hadoop version, can you explain why you believe >so? > >Thanks, > > >On Tue, Feb 1, 2011 at 7:50 AM, Joseph Coleman < >[email protected]> wrote: > >> Hi all not sure where to ask this question but here it goes. I have been >> playing with Hadoop for a while now in a test environment before we >>setup >> and deploy a productions environment. I am using Hadoop 0.20.0 on >>Ubuntu >> 10.04 LTS install on Dell 1950's currently. >> >> My question is what raid should I be using for my data nodes? I haven't >> come across anything that clearly spells it out I have used raid1 and >>then >> EXT4 filesystem but I know this isn't right after further research but >>not >> sure what do do. I will be setting up 3 masters in a cluster which I >>will >> raid out. And roughly 10 datanodes running hdfs and hbase and a separate >> zookeeper cluster. Any thoughts or recommendations on the clustering >>would >> be much appreciated. >> >> Thanks, >> Joe >> >> >> > > >-- >--Sean
