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HBase Administration Cookbook
book

HBase Administration Cookbook

by Yifeng Jiang
August 2012
Intermediate to advanced content levelIntermediate to advanced
332 pages
7h 3m
English
Packt Publishing
Content preview from HBase Administration Cookbook

Setting up multiple High Availability (HA) masters

Hadoop and HBase are designed to handle the failover of their slave nodes automatically. Because there may be many nodes in a large cluster, a hardware failure of a server or shut down of a slave node are considered as normal in the cluster.

For the master nodes, HBase itself has no SPOF. HBase uses ZooKeeper as its central coordination service. A ZooKeeper ensemble is typically clustered with three or more servers; as long as more than half of the servers in the cluster are online, ZooKeeper can provide its service normally.

HBase saves its active master node, root region server location, and other important running data in ZooKeeper. Therefore, we can just start two or more HMaster daemons on ...

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Publisher Resources

ISBN: 9781849517140Other