Re: HDFS multi-tenancy and federation

2014-07-15 Thread praveenesh kumar
of reference, my understanding on HDFS multi-tenancy and federation is that for multi-tenancy what we could do is use file/folder permissions (u,g,o) and ACL's. Or we could dedicate a namespace per tenant. The issue here is that a namenode (active namenode, passive namenode and secondary

Re: HDFS multi-tenancy and federation

2014-07-15 Thread Shani Ranasinghe
. Can someone from namespace A1, access the datanode's data in anyway (hacking) belonging to namespace B1. If not how is it handled? After going through a lot of reference, my understanding on HDFS multi-tenancy and federation is that for multi-tenancy what we could do is use file/folder

Re: HDFS multi-tenancy and federation

2014-02-05 Thread Shani Ranasinghe
of reference, my understanding on HDFS multi-tenancy and federation is that for multi-tenancy what we could do is use file/folder permissions (u,g,o) and ACL's. Or we could dedicate a namespace per tenant. The issue here is that a namenode (active namenode, passive namenode and secondary namenode) has

Re: HDFS multi-tenancy and federation

2014-02-05 Thread praveenesh kumar
. There are two namenodes A /namespace A1 and namenode B/namespace B1, and have 3 datanodes. Can someone from namespace A1, access the datanode's data in anyway (hacking) belonging to namespace B1. If not how is it handled? After going through a lot of reference, my understanding on HDFS multi

Fwd: HDFS multi-tenancy and federation

2014-02-02 Thread Shani Ranasinghe
3 datanodes. Can someone from namespace A1, access the datanode's data in anyway (hacking) belonging to namespace B1. If not how is it handled? After going through a lot of reference, my understanding on HDFS multi-tenancy and federation is that for multi-tenancy what we could do is use file