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The following page has been changed by JeanDanielCryans: http://wiki.apache.org/hadoop/Hbase/ZookeeperIntegration ------------------------------------------------------------------------------ = HBase/Zookeeper Integration Documentation = + + == Introduction == + + Yahoo! Zookeeper is for HBase what Chubby is for Bigtable. The goal of using ZK is that a coordination manager is useful to decentralize the master's job and it improves availability. In Bigtable's paper, Chubby is used to : + + * Ensure there is at most 1 active master at any time + * Store the bootstrap location + * Discover tablet servers and finalize tablet server death + * Store the schema information + * Store access control lists + + It has been discussed that, for the moment, only the three first bullets will be implemented. Also, in order to have a lesser impact on current users, ZK will be optional and a basic implementation will be provided in HBase. For those that will use ZK, the overhead will be like using HDFS. + + For updates, see [https://issues.apache.org/jira/browse/HBASE-546 HBASE-546] + + == The Interface == Soon... + + == The HBase Implementation == + + Soon... + + + == The ZK Integration == + + Not so soon... +
