Hold_transactions Class Reference

Class that contains the logic to hold transactions when group_replication_consistency is set to BEFORE_ON_PRIMARY_FAILOVER. More...

#include <hold_transactions.h>

Public Member Functions
	Hold_transactions ()
	Class constructor for hold transaction logic. More...
	~Hold_transactions ()
	Class destructor for hold transaction logic. More...
void	enable ()
	Method to enable the hold of transactions when a primary election is occurring. More...
void	disable ()
	Method to resume transactions on hold, primary election ended. More...
int	wait_until_primary_failover_complete (ulong hold_timeout)
	Method to wait for a primary failover to be complete. More...

Private Member Functions
bool	is_thread_killed ()
	Method to verify if thread is killed. More...

Private Attributes
bool	applying_backlog = false
	is plugin currently applying backlog More...
mysql_mutex_t	primary_promotion_policy_mutex
	protect and notify changes on applying_backlog More...
mysql_cond_t	primary_promotion_policy_condition

Detailed Description

Class that contains the logic to hold transactions when group_replication_consistency is set to BEFORE_ON_PRIMARY_FAILOVER.

Constructor & Destructor Documentation

Hold_transactions()

Hold_transactions::Hold_transactions

(

)

Class constructor for hold transaction logic.

~Hold_transactions()

Hold_transactions::~Hold_transactions

(

)

Class destructor for hold transaction logic.

Member Function Documentation

disable()

void Hold_transactions::disable

(

)

Method to resume transactions on hold, primary election ended.

enable()

void Hold_transactions::enable

(

)

Method to enable the hold of transactions when a primary election is occurring.

is_thread_killed()

bool Hold_transactions::is_thread_killed ( )

inlineprivate

Method to verify if thread is killed.

wait_until_primary_failover_complete()

int Hold_transactions::wait_until_primary_failover_complete

(

ulong

hold_timeout

)

Method to wait for a primary failover to be complete.

Parameters

hold_timeout

seconds to abort wait

Returns

the operation status

Return values

0	if success
!=0	mysqld error code

Member Data Documentation

applying_backlog

bool Hold_transactions::applying_backlog = false

private

is plugin currently applying backlog

primary_promotion_policy_condition

mysql_cond_t Hold_transactions::primary_promotion_policy_condition

private

primary_promotion_policy_mutex

mysql_mutex_t Hold_transactions::primary_promotion_policy_mutex

private

protect and notify changes on applying_backlog

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

• plugin/group_replication/include/hold_transactions.h
• plugin/group_replication/src/hold_transactions.cc