hm::Fallback_State Class Reference

Fallback State. More...

#include <health_monitor_disk.h>

Public Member Functions
	Fallback_State ()=default
void	reset ()
void	hard_reset ()
bool	enabled () const
void	set_enabled (bool value)
bool	force_enabled () const
void	set_force_enabled (bool value)
bool	fenced () const
bool	offline_mode_was_set_by_hm () const
bool	set_offline_mode_was_set_by_hm (bool value)
bool	super_read_only_was_set_by_hm () const
bool	set_super_read_only_was_set_by_hm (bool value)
bool	super_read_only_retry_failed () const
void	set_super_read_only_retry_failed (bool value)
bool	super_read_only_force_failed () const
void	set_super_read_only_force_failed (bool value)
bool	force_attempted () const
void	set_force_attempted (bool value)
int	count () const
int &	count ()
void	set_count (int value)
std::string &	last_reason ()
const std::string &	last_reason () const
void	set_last_reason (const std::string &value)
const ds::Storage_State *	last_state () const
void	set_last_state (ds::Storage_State *state)

Private Attributes
bool	m_enabled {false}
bool	m_force_enabled {false}
bool	m_offline_mode_was_set_by_hm {false}
bool	m_super_read_only_was_set_by_hm {false}
bool	m_super_read_only_retry_failed {false}
bool	m_super_read_only_force_failed {false}
bool	m_force_attempted {false}
std::string	m_last_reason
ds::Storage_State *	m_last_state {nullptr}
int	m_count {0}

Detailed Description

Fallback State.

"Fallback" is the process of fencing the server when disk space is critically low. The Fallback_State class manages the state of the fallback process, such as tracking whether the Health Monitor set or attempted to set SUPER_READ_ONLY and/or OFFLINE_MODE.

The fallback state does not indicate the actual value of the system variables, only whether or not the Health Monitor set them. This allows the Health Monitor to detect when the system variables are changed externally and sync with the server state.

Constructor & Destructor Documentation

Fallback_State()

hm::Fallback_State::Fallback_State ( )

default

Member Function Documentation

count() [1/2]

int & hm::Fallback_State::count ( )

inline

count() [2/2]

int hm::Fallback_State::count ( ) const

inline

enabled()

bool hm::Fallback_State::enabled ( ) const

inline

fenced()

bool hm::Fallback_State::fenced ( ) const

inline

force_attempted()

bool hm::Fallback_State::force_attempted ( ) const

inline

force_enabled()

bool hm::Fallback_State::force_enabled ( ) const

inline

hard_reset()

void hm::Fallback_State::hard_reset ( )

inline

last_reason() [1/2]

std::string & hm::Fallback_State::last_reason ( )

inline

last_reason() [2/2]

const std::string & hm::Fallback_State::last_reason ( ) const

inline

last_state()

const ds::Storage_State * hm::Fallback_State::last_state ( ) const

inline

offline_mode_was_set_by_hm()

bool hm::Fallback_State::offline_mode_was_set_by_hm ( ) const

inline

reset()

void hm::Fallback_State::reset ( )

inline

set_count()

void hm::Fallback_State::set_count ( int  value )

inline

set_enabled()

void hm::Fallback_State::set_enabled ( bool  value )

inline

set_force_attempted()

void hm::Fallback_State::set_force_attempted ( bool  value )

inline

set_force_enabled()

void hm::Fallback_State::set_force_enabled ( bool  value )

inline

set_last_reason()

void hm::Fallback_State::set_last_reason ( const std::string &  value )

inline

set_last_state()

void hm::Fallback_State::set_last_state ( ds::Storage_State *  state )

inline

set_offline_mode_was_set_by_hm()

bool hm::Fallback_State::set_offline_mode_was_set_by_hm ( bool  value )

inline

set_super_read_only_force_failed()

void hm::Fallback_State::set_super_read_only_force_failed ( bool  value )

inline

set_super_read_only_retry_failed()

void hm::Fallback_State::set_super_read_only_retry_failed ( bool  value )

inline

set_super_read_only_was_set_by_hm()

bool hm::Fallback_State::set_super_read_only_was_set_by_hm ( bool  value )

inline

super_read_only_force_failed()

bool hm::Fallback_State::super_read_only_force_failed ( ) const

inline

super_read_only_retry_failed()

bool hm::Fallback_State::super_read_only_retry_failed ( ) const

inline

super_read_only_was_set_by_hm()

bool hm::Fallback_State::super_read_only_was_set_by_hm ( ) const

inline

Member Data Documentation

m_count

int hm::Fallback_State::m_count {0}

private

m_enabled

bool hm::Fallback_State::m_enabled {false}

private

m_force_attempted

bool hm::Fallback_State::m_force_attempted {false}

private

m_force_enabled

bool hm::Fallback_State::m_force_enabled {false}

private

m_last_reason

std::string hm::Fallback_State::m_last_reason

private

m_last_state

ds::Storage_State* hm::Fallback_State::m_last_state {nullptr}

private

m_offline_mode_was_set_by_hm

bool hm::Fallback_State::m_offline_mode_was_set_by_hm {false}

private

m_super_read_only_force_failed

bool hm::Fallback_State::m_super_read_only_force_failed {false}

private

m_super_read_only_retry_failed

bool hm::Fallback_State::m_super_read_only_retry_failed {false}

private

m_super_read_only_was_set_by_hm

bool hm::Fallback_State::m_super_read_only_was_set_by_hm {false}

private

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

• components/health_monitor/health_monitor_disk.h