The only problem i guess hadoop wont be able to duplicate data from one data center to another but i guess i can identify data nodes or namenodes from another data center correct me if i am wrong
On Sat, Aug 31, 2013 at 7:00 PM, Visioner Sadak <[email protected]>wrote: > lets say that > > you have some machines in europe and some in US I think you just need the > ips and configure them in your cluster set up > it will work... > > > On Sat, Aug 31, 2013 at 7:52 AM, Jun Ping Du <[email protected]> wrote: > >> Hi, >> Although you can set datacenter layer on your network topology, it is >> never enabled in hadoop as lacking of replica placement and task scheduling >> support. There are some work to add layers other than rack and node under >> HADOOP-8848 but may not suit for your case. Agree with Adam that a cluster >> spanning multiple data centers seems not make sense even for DR case. Do >> you have other cases to do such a deployment? >> >> Thanks, >> >> Junping >> >> ------------------------------ >> *From: *"Adam Muise" <[email protected]> >> *To: *[email protected] >> *Sent: *Friday, August 30, 2013 6:26:54 PM >> *Subject: *Re: Multidata center support >> >> >> Nothing has changed. DR best practice is still one (or more) clusters per >> site and replication is handled via distributed copy or some variation of >> it. A cluster spanning multiple data centers is a poor idea right now. >> >> >> >> >> On Fri, Aug 30, 2013 at 12:35 AM, Rahul Bhattacharjee < >> [email protected]> wrote: >> >>> My take on this. >>> >>> Why hadoop has to know about data center thing. I think it can be >>> installed across multiple data centers , however topology configuration >>> would be required to tell which node belongs to which data center and >>> switch for block placement. >>> >>> Thanks, >>> Rahul >>> >>> >>> On Fri, Aug 30, 2013 at 12:42 AM, Baskar Duraikannu < >>> [email protected]> wrote: >>> >>>> We have a need to setup hadoop across data centers. Does hadoop >>>> support multi data center configuration? I searched through archives and >>>> have found that hadoop did not support multi data center configuration some >>>> time back. Just wanted to see whether situation has changed. >>>> >>>> Please help. >>>> >>> >>> >> >> >> -- >> * >> * >> * >> * >> *Adam Muise* >> Solution Engineer >> *Hortonworks* >> [email protected] >> 416-417-4037 >> >> Hortonworks - Develops, Distributes and Supports Enterprise Apache >> Hadoop.<http://hortonworks.com/> >> >> Hortonworks Virtual Sandbox <http://hortonworks.com/sandbox> >> >> Hadoop: Disruptive Possibilities by Jeff >> Needham<http://hortonworks.com/resources/?did=72&cat=1> >> >> CONFIDENTIALITY NOTICE >> NOTICE: This message is intended for the use of the individual or entity >> to which it is addressed and may contain information that is confidential, >> privileged and exempt from disclosure under applicable law. If the reader >> of this message is not the intended recipient, you are hereby notified that >> any printing, copying, dissemination, distribution, disclosure or >> forwarding of this communication is strictly prohibited. If you have >> received this communication in error, please contact the sender immediately >> and delete it from your system. Thank You. >> >> >
