Re: HDFS Federation-- cross namenodes operations

2016-05-25 Thread Chris Nauroth
Hello Kun, I replied to this same question on the user@ list. For usage questions like this, the user@ list is the correct forum. It's not necessary to cross-post to the dev@ lists. --Chris Nauroth On 5/25/16, 8:58 AM, "Kun Ren" wrote: >Hi Genius, > >Does HDFS Federation support the cross

Re: HDFS Federation

2016-04-28 Thread Kun Ren
Thanks a lot, Kihwal. So some code in the ViewFileSystem analysis the client request and transfer the request to the correct namenode, correct? Can you point out in particular which function do this? Thanks. On Thu, Apr 28, 2016 at 10:57 AM, Kihwal Lee wrote: > Kun, > > (1) The client-facing

Re: HDFS Federation

2016-04-28 Thread Kihwal Lee
Kun, (1) The client-facing counter part of federation is ViewFileSystem, aka client side mount table.(2) Federation is supported in 2.7. There are test cases bringing up federated mini cluster, so I assume setting up a pseudo distributed cluster is possible. I am not sure whether all support sc