| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.master | |
| org.apache.hadoop.hbase.master.zksyncer | 
| Class and Description | 
|---|
| MasterAddressSyncer Tracks the active master address on server ZK cluster and synchronize them to client ZK cluster
 if changed | 
| MetaLocationSyncer Tracks the meta region locations on server ZK cluster and synchronize them to client ZK cluster
 if changed | 
| Class and Description | 
|---|
| ClientZKSyncer Tracks the target znode(s) on server ZK cluster and synchronize them to client ZK cluster if
 changed
 
 The target znode(s) is given through  ClientZKSyncer.getPathsToWatch()method | 
| ClientZKSyncer.ZKData Used to store the newest data which we want to sync to client zk. | 
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