MAPR -File Read and Write Process

Question

I am not able to find a specific link that explains to me how the meta data is distributed in MAPR(File meta data). When I look at cloudera / hortonworks /apache hadoop I know the meta data is stored in namenode's memory which is then fetched to locate the nodes that holds the blocks. How does it work in MAPR is what I am trying to understand.

Any help would be greatly appreciated.

Answer 1

MapR natively implemented a Network File System (NFS) interface to MapR-FS so that any reads and writes from and to a file system, whether it be to a local file system, Network Attached Storage, or a Storage Area Network, can read and write data from and to MapR-FS.

This is also the reason MapR asks for a raw disk during the installation so that, it reformats the disk as MapR-FS.

Just came across this thread :

http://answers.mapr.com/questions/108/how-is-metadata-stored.html