It represents a node within a group and is identified by the member identifier, unique identifier and node number. More...

#include <gcs_xcom_group_member_information.h>

Public Member Functions
	Gcs_xcom_node_information (const std::string &member_id, bool alive=true)
	Gcs_xcom_node_information constructor. More...

	Gcs_xcom_node_information (const std::string &member_id, const Gcs_xcom_uuid &uuid, const unsigned int node_no, const bool alive)
	Gcs_xcom_node_information constructor. More...

virtual	~Gcs_xcom_node_information ()=default

	Gcs_xcom_node_information (const Gcs_xcom_node_information &)=default

Gcs_xcom_node_information &	operator= (const Gcs_xcom_node_information &)=default

void	set_suspicion_creation_timestamp (uint64_t ts)
	Sets the timestamp to indicate the creation of the suspicion. More...

uint64_t	get_suspicion_creation_timestamp () const
	Gets the timestamp that indicates the creation of the suspicion. More...

bool	has_timed_out (uint64_t ts, uint64_t timeout)
	Compares the object's timestamp with the received one, in order to check if the suspicion has timed out and the suspect node must be removed. More...

const Gcs_member_identifier &	get_member_id () const

const Gcs_xcom_uuid &	get_member_uuid () const

void	regenerate_member_uuid ()
	Regenerate the member uuid. More...

void	set_node_no (unsigned int)
	Set the member node_no. More...

unsigned int	get_node_no () const
	Return member node_no. More...

bool	is_alive () const
	Get whether the member is alive or not. More...

bool	is_member () const
	Get whether the node is already a member of the group or not. More...

void	set_member (bool m)
	Set whether the node is already a member of the group or not. More...

bool	has_lost_messages () const
	Get whether the local XCom cache has removed messages that the remote node represented by this object has missed. More...

void	set_lost_messages (bool lost_msgs)
	Set whether the local XCom cache has removed messages that the node has missed. More...

synode_no	get_max_synode () const
	Gets the highest synode_no known by the group when the node became unreachable. More...

void	set_max_synode (synode_no synode)
	Sets the highest synode_no known by the group when the node became unreachable. More...

std::pair< bool, node_address * >	make_xcom_identity (Gcs_xcom_proxy &xcom_proxy) const
	Converts this node information into its corresponding XCom node_address type. More...

Private Attributes
Gcs_member_identifier	m_member_id

Gcs_xcom_uuid	m_uuid
	Member unique identifier. More...

unsigned int	m_node_no
	Member node_no. More...

bool	m_alive
	Whether the member is alive or dead. More...

bool	m_member
	Whether the node is a member of the group or not. More...

uint64_t	m_suspicion_creation_timestamp
	Stores the timestamp of the creation of the suspicion. More...

bool	m_lost_messages
	Indicates whether the local XCom cache has removed messages that the remote node represented by this object has missed. More...

synode_no	m_max_synode
	The highest synode known by the group when the node became unreachable. More...

Detailed Description

It represents a node within a group and is identified by the member identifier, unique identifier and node number.

Users are responsible for guaranteeing that they are related to the same node.

One should avoid creating this representation from outside the binding, since each one might have its own internal representations. Instead one should use the Gcs_control_interface::get_local_information method to know our own identification within the group.

Note also that it is possible to use the copy constructor and assignment operator and these properties are required by several other classes such as the Gcs_xcom_nodes.

Constructor & Destructor Documentation

◆ Gcs_xcom_node_information() [1/3]

Gcs_xcom_node_information::Gcs_xcom_node_information	(	const std::string &	member_id,
		bool	alive = `true`
	)

explicit

Gcs_xcom_node_information constructor.

Parameters

[in]	member_id	the member identifier
[in]	alive	whether the node is alive or not.

◆ Gcs_xcom_node_information() [2/3]

Gcs_xcom_node_information::Gcs_xcom_node_information	(	const std::string &	member_id,
		const Gcs_xcom_uuid &	uuid,
		const unsigned int	node_no,
		const bool	alive
	)

explicit

Gcs_xcom_node_information constructor.

Parameters

[in]	member_id	the member identifier
[in]	uuid	the member uuid
[in]	node_no	the member node number
[in]	alive	whether the node is alive or not.

◆ ~Gcs_xcom_node_information()

virtual Gcs_xcom_node_information::~Gcs_xcom_node_information ( )

virtualdefault

◆ Gcs_xcom_node_information() [3/3]

Gcs_xcom_node_information::Gcs_xcom_node_information ( const Gcs_xcom_node_information & )

default

Member Function Documentation

◆ get_max_synode()

synode_no Gcs_xcom_node_information::get_max_synode ( ) const

Gets the highest synode_no known by the group when the node became unreachable.

◆ get_member_id()

const Gcs_member_identifier & Gcs_xcom_node_information::get_member_id ( ) const

Returns: the member identifier

◆ get_member_uuid()

const Gcs_xcom_uuid & Gcs_xcom_node_information::get_member_uuid ( ) const

Returns: the member uuid

◆ get_node_no()

unsigned int Gcs_xcom_node_information::get_node_no ( ) const

Return member node_no.

◆ get_suspicion_creation_timestamp()

uint64_t Gcs_xcom_node_information::get_suspicion_creation_timestamp ( ) const

Gets the timestamp that indicates the creation of the suspicion.

◆ has_lost_messages()

bool Gcs_xcom_node_information::has_lost_messages ( ) const

Get whether the local XCom cache has removed messages that the remote node represented by this object has missed.

When this happens, the remote node will no longer be able to recover the missed messages from the local node and a corresponding message will be printed to the local node's error log. The message will only be printed the first time a missed message is lost.

◆ has_timed_out()

bool Gcs_xcom_node_information::has_timed_out	(	uint64_t	ts,
		uint64_t	timeout
	)

Compares the object's timestamp with the received one, in order to check if the suspicion has timed out and the suspect node must be removed.

Parameters

[in]	ts	Provided timestamp
[in]	timeout	Provided timeout

Returns: Indicates if the suspicion has timed out

◆ is_alive()

bool Gcs_xcom_node_information::is_alive ( ) const

Get whether the member is alive or not.

◆ is_member()

bool Gcs_xcom_node_information::is_member ( ) const

Get whether the node is already a member of the group or not.

◆ make_xcom_identity()

std::pair< bool, node_address * > Gcs_xcom_node_information::make_xcom_identity ( Gcs_xcom_proxy & xcom_proxy ) const

Converts this node information into its corresponding XCom node_address type.

Parameters

xcom_proxy XCom proxy

Return values

{true,nullptr}	if there was an error creating the node_address
{false,node_address*}	if the node_address was successfully created

◆ operator=()

Gcs_xcom_node_information & Gcs_xcom_node_information::operator= ( const Gcs_xcom_node_information & )

default

◆ regenerate_member_uuid()

void Gcs_xcom_node_information::regenerate_member_uuid ( )

Regenerate the member uuid.

◆ set_lost_messages()

void Gcs_xcom_node_information::set_lost_messages ( bool lost_msgs )

Set whether the local XCom cache has removed messages that the node has missed.

◆ set_max_synode()

void Gcs_xcom_node_information::set_max_synode ( synode_no synode )

Sets the highest synode_no known by the group when the node became unreachable.

◆ set_member()

void Gcs_xcom_node_information::set_member ( bool m )

Set whether the node is already a member of the group or not.

◆ set_node_no()

void Gcs_xcom_node_information::set_node_no ( unsigned int node_no )

Set the member node_no.

◆ set_suspicion_creation_timestamp()

void Gcs_xcom_node_information::set_suspicion_creation_timestamp ( uint64_t ts )

Sets the timestamp to indicate the creation of the suspicion.

Member Data Documentation

◆ m_alive

bool Gcs_xcom_node_information::m_alive

private

Whether the member is alive or dead.

◆ m_lost_messages

bool Gcs_xcom_node_information::m_lost_messages

private

Indicates whether the local XCom cache has removed messages that the remote node represented by this object has missed.

Used to avoid printing the corresponding error message more than once.

◆ m_max_synode

synode_no Gcs_xcom_node_information::m_max_synode

private

The highest synode known by the group when the node became unreachable.

◆ m_member

bool Gcs_xcom_node_information::m_member

private

Whether the node is a member of the group or not.

◆ m_member_id

Gcs_member_identifier Gcs_xcom_node_information::m_member_id

private

◆ m_node_no

unsigned int Gcs_xcom_node_information::m_node_no

private

Member node_no.

◆ m_suspicion_creation_timestamp

uint64_t Gcs_xcom_node_information::m_suspicion_creation_timestamp

private

Stores the timestamp of the creation of the suspicion.

◆ m_uuid

Gcs_xcom_uuid Gcs_xcom_node_information::m_uuid

private

Member unique identifier.

The documentation for this class was generated from the following files:

plugin/group_replication/libmysqlgcs/src/bindings/xcom/gcs_xcom_group_member_information.h
plugin/group_replication/libmysqlgcs/src/bindings/xcom/gcs_xcom_group_member_information.cc

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Gcs_xcom_node_information() [1/3]

◆ Gcs_xcom_node_information() [2/3]

◆ ~Gcs_xcom_node_information()

◆ Gcs_xcom_node_information() [3/3]

Member Function Documentation

◆ get_max_synode()

◆ get_member_id()

◆ get_member_uuid()

◆ get_node_no()

◆ get_suspicion_creation_timestamp()

◆ has_lost_messages()

◆ has_timed_out()

◆ is_alive()

◆ is_member()

◆ make_xcom_identity()

◆ operator=()

◆ regenerate_member_uuid()

◆ set_lost_messages()

◆ set_max_synode()

◆ set_member()

◆ set_node_no()

◆ set_suspicion_creation_timestamp()

Member Data Documentation

◆ m_alive

◆ m_lost_messages

◆ m_max_synode

◆ m_member

◆ m_member_id

◆ m_node_no

◆ m_suspicion_creation_timestamp

◆ m_uuid