I have read and foind that the master node is SPOF and 0.20 will have failover system for master node. Any update or any solution to avio SPOF? Jae
On 4/16/09, Billy Pearson <[email protected]> wrote: > hbase and hadoop both have a single node (namenode & master) that tell the > clients where stuff is that's all they do is keep up with > where stuff is they do not handle the getting of the data the client api > will go to the node with the data they tell it to find the data and get the > data. > > as for adding new nodes to hadoop to balance the cluster you can use > bin/start-balancer.sh -threshold 5 > Where 5 is the % you want the nodes to be with in each other in terms of > used % > > Billy > > > "Jae Joo" <[email protected]> wrote in > message news:[email protected]... >> Hi, >> >> We are doing some feasibility study of HBase and have questions. >> 1. Once we have build tables on certain number node and decide to add more >> nodes, how it is working? I know that it is not hbase, but hadoop >> questions. >> Will it automatically redistribute the files or start utilizing the new >> node >> for new inserted records? >> >> 2. Is there any way to have multile master nodes? Should all traffis (or >> requests) be going to SIngle Master node to access the data from hbase? >> >> >> Thanks, >> >> Jae >> > > > -- Sent from my mobile device
