Package org.apache.hadoop.registry.client.impl.zk

Core Zookeeper support.

See: Description

Interface Summary

Interface	Description
ListenerHandle
PathListener
RegistryBindingSource	Interface which can be implemented by a registry binding source
RegistryInternalConstants	Internal constants for the registry.
ZookeeperConfigOptions	Configuration options which are internal to Zookeeper, as well as some other ZK constants

Class Summary

Class	Description
BindingInformation	Binding information provided by a RegistryBindingSource
CuratorService	This service binds to Zookeeper via Apache Curator.
RegistryOperationsService	The Registry operations service.
RegistrySecurity	Implement the registry security ...
RegistrySecurity.AclListInfo	on-demand stringifier for a list of ACLs
RegistrySecurity.JaasConfiguration	Creates a programmatic version of a jaas.conf file.
RegistrySecurity.UgiInfo	On demand string-ifier for UGI with extra details
ZKPathDumper	This class dumps a registry tree to a string.

Package org.apache.hadoop.registry.client.impl.zk Description

Core Zookeeper support.

This package contains the low-level bindings to Curator and Zookeeper, including everything related to registry security.

The class CuratorService is a YARN service which offers access to a Zookeeper instance via Apache Curator.

The RegistrySecurity implements the security support in the registry, though a set of static methods and as a YARN service.

To work with ZK, system properties need to be set before invoking some operations/instantiating some objects. The definitions of these are kept in ZookeeperConfigOptions.