transferring between HDFS which reside in different subnet

2012-05-11 Thread Arindam Choudhury
Hi, I have a question to the hadoop experts: I have two HDFS, in different subnet. HDFS1 : 192.168.*.* HDFS2: 10.10.*.* the namenode of HDFS2 has two NIC. One connected to 192.168.*.* and another to 10.10.*.*. So, is it possible to transfer data from HDFS1 to HDFS2 and vice versa. Regards, A

Re: transferring between HDFS which reside in different subnet

2012-05-11 Thread Shi Yu
If you could cross-access HDFS from both name nodes, then it should be transferable using /distcp /command. Shi * * On 5/11/2012 8:45 AM, Arindam Choudhury wrote: Hi, I have a question to the hadoop experts: I have two HDFS, in different subnet. HDFS1 : 192.168.*.* HDFS2: 10.10.*.* the nam

Re: transferring between HDFS which reside in different subnet

2012-05-11 Thread Arindam Choudhury
I can not cross access HDFS. Though HDFS2 has two NIC the HDFS is running on the other subnet. On Fri, May 11, 2012 at 3:57 PM, Shi Yu wrote: > If you could cross-access HDFS from both name nodes, then it should be > transferable using /distcp /command. > > Shi * > * > > On 5/11/2012 8:45 AM, Ar

Re: transferring between HDFS which reside in different subnet

2012-05-11 Thread Shi Yu
It seems in your case HDFS2 could access HDFS, so you should be able to transfer HDFS data to HDFS2. If you want to cross-transfer, you don't need to do distcp on cluster nodes, if any client node (not necessary to be namenode, datanode, secondary node, etc.) could access to both HDFSs, then r

Re: transferring between HDFS which reside in different subnet

2012-05-11 Thread Rajesh Sai T
Looks like both are private subnets, so you got to route via a public default gateway. Try adding route using route command if your in linux(windows i have no idea). Just a thought i havent tried it though. Thanks, Rajesh Typed from mobile, please bear with typos. On May 11, 2012 10:03 AM, "Arind

Re: transferring between HDFS which reside in different subnet

2012-05-11 Thread Arindam Choudhury
So, hadoop dfs -cp hdfs:// hdfs://... this will work. On Fri, May 11, 2012 at 4:14 PM, Rajesh Sai T wrote: > Looks like both are private subnets, so you got to route via a public > default gateway. Try adding route using route command if your in > linux(windows i have no idea). Just a thou