Re: HDFS / Federated HDFS - Doubts

2013-10-16 Thread Steve Edison
I have couple of questions about HDFS federation: Can I state different block store directories for each namespace on a datanode ? Can I have some datanodes dedicated to a particular namespace only ? This seems quite interesting. Way to go ! On Tue, Oct 1, 2013 at 9:52 PM, Krishna Kumaar Natara

How to Backup HDFS data ?

2013-01-24 Thread Steve Edison
Folks, Its been an year and my HDFS / Solar /Hive setup is working flawless. The data logs which were meaningless to my business all of a sudden became precious to the extent that our management wants to backup this data. I am talking about 20 TB of active HDFS data with an incremental of 2 TB/mon

Re: How to Backup HDFS data ?

2013-01-24 Thread Steve Edison
; On disk, have another Hadoop cluster dans do regular distcp. > > On tape, make sure you have a backup program which can backup streams > so you don't have to materialize your TB files outside of your Hadoop > cluster first... (I know Simpana can't do that :-(). > > On

Ambari based uninstall

2015-02-26 Thread Steve Edison
Team, I am using Ambari to install a cluster which now needs to be deleted and re-installed. Is there a clean way to Uninstall the cluster, clean up all the binaries from all the nodes and do a fresh install ? There is no data on the cluster, so nothing to worry. Thanks in advance