process

Documentation

Index

• Variables
• func AttemptElection() (bool, error)
• func ElectedNode() (hostname string, token string, isElected bool, err error)
• func GetHash(input []byte) string
• func GetRandomData() []byte
• func GrabElection() error
• func Reelect() error
• type HealthStatus
  • func HealthTest() (*HealthStatus, error)
  • func SimpleHealthTest() (*HealthStatus, error)
• type Token
  • func NewToken() *Token

Variables

var ThisHostname string

Functions

func AttemptElection

func AttemptElection() (bool, error)

AttemptElection tries to grab leadership (become active node)

func ElectedNode

func ElectedNode() (hostname string, token string, isElected bool, err error)

ElectedNode returns the details of the elected node, as well as answering the question "is this process the elected one"?

func GetHash

func GetHash(input []byte) string

func GetRandomData

func GetRandomData() []byte

func GrabElection

func GrabElection() error

GrabElection forcibly grabs leadership. Use with care!!

func Reelect

func Reelect() error

Reelect clears the way for re-elections. Active node is immediately demoted.

Types

type HealthStatus

type HealthStatus struct {
	Healthy        bool
	Hostname       string
	Token          string
	IsActiveNode   bool
	ActiveNode     string
	Error          error
	AvailableNodes []string
}

func HealthTest

func HealthTest() (*HealthStatus, error)

HealthTest attempts to write to the backend database and get a result

func SimpleHealthTest

func SimpleHealthTest() (*HealthStatus, error)

Just check to make sure we can connect to the database

type Token

type Token struct {
	Hash string
}

Token is used to identify and validate requests to this service

var ProcessToken *Token = NewToken()

func NewToken

func NewToken() *Token