zk

Documentation

Overview

Package zk encapsulates our interactions with ZooKeeper.

Index

• Constants
• type Client
  • func NewClient(zkquorum string, st time.Duration) Client
• type ResourceName
  • func (r ResourceName) Prepend(prefix string) ResourceName

Constants

const (
	// Meta is a ResourceName that indicates that the location of the Meta
	// table is what will be fetched
	Meta = ResourceName("/meta-region-server")

	// Master is a ResourceName that indicates that the location of the Master
	// server is what will be fetched
	Master = ResourceName("/master")
)

Types

type Client

type Client interface {
	LocateResource(ResourceName) (string, error)
}

Client is an interface of client that retrieves meta infomation from zookeeper

func NewClient

func NewClient(zkquorum string, st time.Duration) Client

NewClient establishes connection to zookeeper and returns the client

type ResourceName

type ResourceName string

ResourceName is a type alias that is used to represent different resources in ZooKeeper

func (ResourceName) Prepend

func (r ResourceName) Prepend(prefix string) ResourceName

Prepend creates a new ResourceName with prefix prepended to the former ResourceName.