Re: Multiple DataNodes on a single machine

2014-05-29 Thread hadoop hive
: Multiple DataNodes on a single machine . Ist works fine 2 datanodes are up and running . So i have 2 conf Folders conf and conf2 in hadoop-home . If i have to set dfs.replication value to 3 - in which hdfs-site.xml should i set ? should it be hdfs-site.xml in conf or conf2 . what should

RE: Multiple DataNodes on a single machine

2014-05-27 Thread sindhu hosamane
Hello friends , i set up 2 datanodes on a single machine accordingly mentioned in the thread RE: Multiple DataNodes on a single machine . Ist works fine 2 datanodes are up and running . So i have 2 conf Folders conf and conf2 in hadoop-home . If i have to set dfs.replication value to 3

Re: Multiple DataNodes on a single machine

2010-09-16 Thread Ranjib Dey
to replicate , you can simply set the replication factor to 1. On Thu, Sep 16, 2010 at 6:15 AM, Matthew Foley ma...@yahoo-inc.com wrote: Hello Arv, It is possible to run multiple datanodes on a single machine, and this can be useful for small-scale test scenarios. Also you mentioned in your

RE: Multiple DataNodes on a single machine

2010-09-16 Thread Arv Mistry
Thanks for the responses, I especially appreciate the details Matthew! Just for the record, I appreciate that having multiple DataNodes on a single machine defeats the purpose or the advantages given by having them spread across machines across racks. I intend to go to that model as we grow

Multiple DataNodes on a single machine

2010-09-15 Thread Arv Mistry
can run multiple DataNodes on a single machine each assigned a separate disk that would give me the protection I need against disk failure. Can anyone give me any insights in to how I would setup multiple DataNodes to run on a single machine? Thanks in advance, Cheers Arv

Re: Multiple DataNodes on a single machine

2010-09-15 Thread Nan Zhu
like to be able to handle a single disk failure. So I was thinking if I can run multiple DataNodes on a single machine each assigned a separate disk that would give me the protection I need against disk failure. Can anyone give me any insights in to how I would setup multiple DataNodes to run

Re: Multiple DataNodes on a single machine

2010-09-15 Thread David Rosenstrauch
a single disk failure. So I was thinking if I can run multiple DataNodes on a single machine each assigned a separate disk that would give me the protection I need against disk failure. Can anyone give me any insights in to how I would setup multiple DataNodes to run on a single machine? Thanks

Re: Multiple DataNodes on a single machine

2010-09-15 Thread Matthew Foley
Hello Arv, It is possible to run multiple datanodes on a single machine, and this can be useful for small-scale test scenarios. Also you mentioned in your previous message that you have a Hadoop implementation with only one physical datanode server and want to replicate within it, between