log_event.cc File Reference

#include "sql/log_event.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include "my_config.h"
#include <sys/time.h>
#include <algorithm>
#include <iterator>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include "base64.h"
#include "decimal.h"
#include "m_string.h"
#include "my_bitmap.h"
#include "my_byteorder.h"
#include "my_compiler.h"
#include "my_dbug.h"
#include "my_io.h"
#include "my_macros.h"
#include "my_systime.h"
#include "my_table_map.h"
#include "my_time.h"
#include "mysql.h"
#include "mysql/binlog/event/debug_vars.h"
#include "mysql/binlog/event/export/binary_log_funcs.h"
#include "mysql/binlog/event/table_id.h"
#include "mysql/binlog/event/wrapper_functions.h"
#include "mysql/components/services/bits/psi_statement_bits.h"
#include "mysql/components/services/log_builtins.h"
#include "mysql/components/services/log_shared.h"
#include "mysql/my_loglevel.h"
#include "mysql/psi/mysql_mutex.h"
#include "mysql/serialization/serializer_default.h"
#include "mysql/serialization/write_archive_binary.h"
#include "mysql/strings/dtoa.h"
#include "mysql/strings/int2str.h"
#include "mysql/strings/m_ctype.h"
#include "mysql/udf_registration_types.h"
#include "mysql_time.h"
#include "nulls.h"
#include "psi_memory_key.h"
#include "query_options.h"
#include "scope_guard.h"
#include "sql-common/my_decimal.h"
#include "sql/auth/auth_acls.h"
#include "sql/binlog_reader.h"
#include "sql/field_common_properties.h"
#include "sql/psi_memory_resource.h"
#include "sql/raii/thread_stage_guard.h"
#include "sql/rpl_handler.h"
#include "sql/rpl_tblmap.h"
#include "sql/sql_show_processlist.h"
#include "sql/system_variables.h"
#include "sql/tc_log.h"
#include "sql/xa/sql_cmd_xa.h"
#include "sql_const.h"
#include "sql_string.h"
#include "strmake.h"
#include "strxmov.h"
#include "template_utils.h"
#include <errno.h>
#include <fcntl.h>
#include <cstdint>
#include <new>
#include "my_base.h"
#include "my_command.h"
#include "my_dir.h"
#include "my_sqlcommand.h"
#include "mysql/binlog/event/binary_log.h"
#include "mysql/plugin.h"
#include "mysql/psi/mysql_cond.h"
#include "mysql/psi/mysql_file.h"
#include "mysql/psi/mysql_stage.h"
#include "mysql/psi/mysql_statement.h"
#include "mysql/psi/mysql_transaction.h"
#include "mysql/psi/psi_statement.h"
#include "mysqld_error.h"
#include "prealloced_array.h"
#include "sql/auth/auth_common.h"
#include "sql/auth/sql_security_ctx.h"
#include "sql/basic_ostream.h"
#include "sql/binlog.h"
#include "sql/changestreams/misc/replicated_columns_view_factory.h"
#include "sql/current_thd.h"
#include "sql/dd/types/abstract_table.h"
#include "sql/debug_sync.h"
#include "sql/derror.h"
#include "sql/enum_query_type.h"
#include "sql/field.h"
#include "sql/handler.h"
#include "sql/item.h"
#include "sql/item_func.h"
#include "sql/key.h"
#include "sql/log.h"
#include "sql/mdl.h"
#include "sql/mysqld.h"
#include "sql/protocol.h"
#include "sql/rpl_msr.h"
#include "sql/rpl_mta_submode.h"
#include "sql/rpl_replica.h"
#include "sql/rpl_reporting.h"
#include "sql/rpl_rli.h"
#include "sql/rpl_rli_pdb.h"
#include "sql/sp_head.h"
#include "sql/sql_base.h"
#include "sql/sql_bitmap.h"
#include "sql/sql_class.h"
#include "sql/sql_cmd.h"
#include "sql/sql_data_change.h"
#include "sql/sql_db.h"
#include "sql/sql_digest_stream.h"
#include "sql/sql_error.h"
#include "sql/sql_exchange.h"
#include "sql/sql_gipk.h"
#include "sql/sql_lex.h"
#include "sql/sql_list.h"
#include "sql/sql_load.h"
#include "sql/sql_locale.h"
#include "sql/sql_parse.h"
#include "sql/sql_plugin.h"
#include "sql/sql_show.h"
#include "sql/sql_tablespace.h"
#include "sql/table.h"
#include "sql/transaction.h"
#include "sql/transaction_info.h"
#include "sql/tztime.h"
#include "string_with_len.h"
#include "thr_lock.h"
#include "mysql/binlog/event/codecs/binary.h"
#include "mysql/binlog/event/codecs/factory.h"
#include "mysql/binlog/event/compression/payload_event_buffer_istream.h"
#include "sql/rpl_gtid.h"
#include "sql/rpl_record.h"
#include "sql/rpl_utility.h"
#include "sql/xa_aux.h"

Macros
#define	LOG_SUBSYSTEM_TAG   "Repl"
#define	window_size   Log_throttle::LOG_THROTTLE_WINDOW_SIZE
#define	ILLEGAL_CHARSET_INFO_NUMBER   (~0U)
#define	log_cs   &my_charset_latin1
#define	FMT_G_BUFSIZE(PREC)   (3 + (PREC) + 5 + 1)

Enumerations
enum	enum_tbl_map_status {   OK_TO_PROCESS = 0 , FILTERED_OUT = 1 , SAME_ID_MAPPING_DIFFERENT_TABLE = 2 , SAME_ID_MAPPING_SAME_TABLE = 3 ,   FILTERED_WITH_XA_ACTIVE = 4 }

Functions
static int	rows_event_stmt_cleanup (Relay_log_info const *rli, THD *thd)
	The function is called at Rows_log_event statement commit time, normally from Rows_log_event::do_update_pos() and possibly from Query_log_event::do_apply_event() of the COMMIT. More...
static const char *	HA_ERR (int i)
static void	slave_rows_error_report (enum loglevel level, int ha_error, Relay_log_info const *rli, THD *thd, TABLE *table, const char *type, const char *log_name, ulong pos)
	Error reporting facility for Rows_log_event::do_apply_event. More...
static bool	set_thd_db (THD *thd, const char *db, size_t db_len)
	Set the rewritten database, or current database if it should not be rewritten, into THD. More...
static void	clear_all_errors (THD *thd, Relay_log_info *rli)
int	idempotent_error_code (int err_code)
int	ignored_error_code (int err_code)
	Ignore error code specified on command line. More...
static int	convert_handler_error (int error, THD *thd, TABLE *table)
bool	concurrency_error_code (int error)
bool	unexpected_error_code (int unexpected_error)
static void	pretty_print_str (String *packet, const char *str, size_t len)
static void	pretty_print_str (String *packet, const String *str)
static char *	slave_load_file_stem (char *buf, uint file_id, int event_server_id, const char *ext)
	Creates a temporary name for load data infile:. More...
static void	cleanup_load_tmpdir ()
	Delete all temporary files used for SQL_LOAD. More...
template<typename T >
bool	net_field_length_checked (const uchar **packet, size_t *max_length, T *out)
	Read an integer in net_field_length format, guarding against read out of bounds and advancing the position. More...
template bool	net_field_length_checked< size_t > (const uchar **packet, size_t *max_length, size_t *out)
template bool	net_field_length_checked< ulonglong > (const uchar **packet, size_t *max_length, ulonglong *out)
char *	str_to_hex (char *to, const char *from, size_t len)
	Transforms a string into "" or its expression in 0x... form. More...
int	append_query_string (const THD *thd, const CHARSET_INFO *csinfo, String const *from, String *to)
	Append a version of the 'from' string suitable for use in a query to the 'to' string. More...
static bool	schedule_next_event (Log_event *ev, Relay_log_info *rli)
static void	write_str_with_code_and_len (uchar **dst, const char *src, size_t len, uint code)
	Utility function for the next method (Query_log_event::write()) . More...
bool	is_sql_command_atomic_ddl (const LEX *lex)
	Returns true when the lex context determines an atomic DDL. More...
static bool	is_sql_require_primary_key_needed (const LEX *lex)
	Returns whether or not the statement held by the LEX object parameter requires Q_SQL_REQUIRE_PRIMARY_KEY to be logged together with the statement. More...
static bool	is_default_table_encryption_needed (const LEX *lex)
	Returns whether or not the statement held by the LEX object parameter requires Q_DEFAULT_TABLE_ENCRYPTION to be logged together with the statement. More...
bool	is_atomic_ddl (THD *thd, bool using_trans_arg)
	The function lists all DDL instances that are supported for crash-recovery (WL9175). More...
static bool	is_silent_error (THD *thd)
bool	slave_execute_deferred_events (THD *thd)
	Exec deferred Int-, Rand- and User- var events prefixing a Query-log-event event. More...
static bool	is_load_data_file_allowed (THD *thd, Relay_log_info const *rli)
	This function is used inside Append_block_log_event and Execute_load_query_log_event apply member functions to determine if a file is to be created (Append_block_log_event) or has been created (Execute_load_query_log_event). More...
static const uchar *	set_extra_data (uchar *arr, int reset_limit)
	set_extra_data More...
static void	check_extra_row_ndb_info (uchar *extra_row_ndb_info)
	check_extra_row_ndb_info More...
int	get_rpl_part_id (partition_info *part_info)
	This method is used to extract the partition_id from a partitioned table. More...
static bool	is_any_column_signaled_for_table (TABLE *table, MY_BITMAP *cols)
	Checks if any of the columns in the given table is signaled in the bitmap. More...
static bool	are_all_columns_signaled_for_key (KEY *keyinfo, MY_BITMAP *cols)
	Checks if the fields in the given key are signaled in the bitmap. More...
static uint	search_key_in_table (TABLE *table, MY_BITMAP *bi_cols, uint key_type)
	Searches the table for a given key that can be used according to the existing values, ie, columns set in the bitmap. More...
static bool	record_compare (TABLE *table, MY_BITMAP *cols)
static enum_tbl_map_status	check_table_map (Relay_log_info const *rli, RPL_Table_ref *table_list)
static void	store_compressed_length (String &str_buf, ulonglong length)
	stores an integer into packed format. More...
static bool	write_tlv_field (String &str_buf, enum Table_map_log_event::Optional_metadata_field_type type, uint length, const uchar *value)
	Write data into str_buf with Type|Length|Value(TLV) format. More...
static bool	write_tlv_field (String &str_buf, enum Table_map_log_event::Optional_metadata_field_type type, const String &value)
	Write data into str_buf with Type|Length|Value(TLV) format. More...
static bool	is_character_type (uint type)
static bool	is_enum_or_set_type (uint type)
static bool	is_numeric_field (const Field *field)
static bool	is_character_field (const Field *field)
static bool	is_enum_field (const Field *field)
static bool	is_set_field (const Field *field)
static bool	is_enum_or_set_field (const Field *field)
static bool	is_geometry_field (const Field *field)
static int	last_uniq_key (TABLE *table, uint keyno)
static bool	write_str_at_most_255_bytes (Basic_ostream *ostream, const char *str, uint length)
static bool	shall_delete_event_after_apply (Log_event *ev)
size_t	my_strmov_quoted_identifier (THD *thd, char *buffer, const char *identifier, size_t length)
size_t	my_strmov_quoted_identifier_helper (int q, char *buffer, const char *identifier, size_t length)
std::pair< bool, mysql::binlog::event::Log_event_basic_info >	extract_log_event_basic_info (Log_event *log_event)
	Extract basic info about an event: type, query, is it ignorable. More...
std::pair< bool, mysql::binlog::event::Log_event_basic_info >	extract_log_event_basic_info (const char *buf, size_t length, const mysql::binlog::event::Format_description_event *fd_event)
	Extract basic info about an event: type, query, is it ignorable. More...

Variables
Error_log_throttle	slave_ignored_err_throttle (window_size, INFORMATION_LEVEL, ER_SERVER_REPLICA_IGNORED_TABLE, "Repl", "Error log throttle: %lu time(s) Error_code: 1237" " \"Replica SQL thread ignored the query because of" " replicate-*-table rules\" got suppressed.")
PSI_memory_key	key_memory_log_event
PSI_memory_key	key_memory_Incident_log_event_message
PSI_memory_key	key_memory_Rows_query_log_event_rows_query
const char *	binlog_checksum_type_names [] = {"NONE", "CRC32", NullS}
	BINLOG_CHECKSUM variable. More...
unsigned int	binlog_checksum_type_length []
TYPELIB	binlog_checksum_typelib
static uchar	dbug_extra_row_ndb_info_val = 0
static int	dbug_extra_row_ndb_info_val_limit = 0

Macro Definition Documentation

FMT_G_BUFSIZE

#define FMT_G_BUFSIZE

(

PREC

)

(3 + (PREC) + 5 + 1)

ILLEGAL_CHARSET_INFO_NUMBER

#define ILLEGAL_CHARSET_INFO_NUMBER   (~0U)

log_cs

#define log_cs   &my_charset_latin1

LOG_SUBSYSTEM_TAG

#define LOG_SUBSYSTEM_TAG   "Repl"

window_size

#define window_size   Log_throttle::LOG_THROTTLE_WINDOW_SIZE

Enumeration Type Documentation

enum_tbl_map_status

enum enum_tbl_map_status

Enumerator
OK_TO_PROCESS
FILTERED_OUT
SAME_ID_MAPPING_DIFFERENT_TABLE
SAME_ID_MAPPING_SAME_TABLE
FILTERED_WITH_XA_ACTIVE

Function Documentation

are_all_columns_signaled_for_key()

static bool are_all_columns_signaled_for_key ( KEY *  keyinfo, MY_BITMAP *  cols  )

static

Checks if the fields in the given key are signaled in the bitmap.

Validates whether the before image is usable for the given key. It can be the case that the before image does not contain values for the key (eg, master was using 'minimal' option for image logging and slave has different index structure on the table). Here is an example:

MASTER> SET @binlog_row_image='MINIMAL'; MASTER> CREATE TABLE t1 (a int, b int, c int, primary key(c)); SLAVE> CREATE TABLE t1 (a int, b int, c int, key(a,c)); MASTER> INSERT INTO t1 VALUES (1,2,3); MASTER> UPDATE t1 SET a=2 WHERE b=2;

When finding the row on the slave, one cannot use the index (a,c) to search for the row, because there is only data in the before image for column c. This function checks the fields needed for a given key and searches the bitmap to see if all the fields required are signaled.

Parameters

keyinfo	reference to key.
cols	the bitmap signaling which columns have available data.

Returns

true if all fields are signaled in the bitmap for the given key, false otherwise.

check_extra_row_ndb_info()

static void check_extra_row_ndb_info ( uchar *  extra_row_ndb_info )

static

check_extra_row_ndb_info

Called during self-test to check that binlog row event extra data is self- consistent as defined by the set_extra_data function above.

Will assert(false) if not.

check_table_map()

static enum_tbl_map_status check_table_map ( Relay_log_info const *  rli, RPL_Table_ref *  table_list  )

static

cleanup_load_tmpdir()

static void cleanup_load_tmpdir ( )

static

Delete all temporary files used for SQL_LOAD.

clear_all_errors()

static void clear_all_errors ( THD *  thd, Relay_log_info *  rli  )

static

concurrency_error_code()

bool concurrency_error_code ( int  error )

inline

convert_handler_error()

static int convert_handler_error ( int  error, THD *  thd, TABLE *  table  )

static

HA_ERR()

static const char * HA_ERR ( int  i )

static

idempotent_error_code()

int idempotent_error_code ( int  err_code )

inline

is_any_column_signaled_for_table()

static bool is_any_column_signaled_for_table ( TABLE *  table, MY_BITMAP *  cols  )

static

Checks if any of the columns in the given table is signaled in the bitmap.

For each column in the given table checks if it is signaled in the bitmap. This is most useful when deciding whether a before image (BI) can be used or not for searching a row. If no column is signaled, then the image cannot be used for searching a record (regardless of using position(), index scan or table scan). Here is an example:

MASTER> SET @binlog_row_image='MINIMAL'; MASTER> CREATE TABLE t1 (a int, b int, c int, primary key(c)); SLAVE> CREATE TABLE t1 (a int, b int); MASTER> INSERT INTO t1 VALUES (1,2,3); MASTER> UPDATE t1 SET a=2 WHERE b=2;

For the update statement only the PK (column c) is logged in the before image (BI). As such, given that the slave has no column c, it will not be able to find the row, because BI has no values for the columns the slave knows about (column a and b).

Parameters

table	the table reference on the slave.
cols	the bitmap signaling columns available in the BI.

Returns

true if BI contains usable columns for searching, false otherwise.

is_character_field()

static bool is_character_field ( const Field *  field )

inlinestatic

is_character_type()

static bool is_character_type ( uint  type )

inlinestatic

is_default_table_encryption_needed()

static bool is_default_table_encryption_needed ( const LEX *  lex )

static

Returns whether or not the statement held by the LEX object parameter requires Q_DEFAULT_TABLE_ENCRYPTION to be logged together with the statement.

is_enum_field()

static bool is_enum_field ( const Field *  field )

inlinestatic

is_enum_or_set_field()

static bool is_enum_or_set_field ( const Field *  field )

inlinestatic

is_enum_or_set_type()

static bool is_enum_or_set_type ( uint  type )

inlinestatic

is_geometry_field()

static bool is_geometry_field ( const Field *  field )

inlinestatic

is_load_data_file_allowed()

static bool is_load_data_file_allowed ( THD *  thd, Relay_log_info const *  rli  )

static

This function is used inside Append_block_log_event and Execute_load_query_log_event apply member functions to determine if a file is to be created (Append_block_log_event) or has been created (Execute_load_query_log_event).

Parameters

thd	The applier thread context.
rli	The applier relay log info global context.

Returns

true if no row format is required and enough FILE privileges to create a file.

false If either row format is required or no FILE privileges and therefore file is not to be created.

is_numeric_field()

static bool is_numeric_field ( const Field *  field )

inlinestatic

is_set_field()

static bool is_set_field ( const Field *  field )

inlinestatic

is_silent_error()

static bool is_silent_error ( THD *  thd )

static

is_sql_command_atomic_ddl()

bool is_sql_command_atomic_ddl ( const LEX *  lex )

inline

Returns true when the lex context determines an atomic DDL.

The result is optimistic as there can be more properties to check out.

CREATE TABLE ... START TRANSACTION is not treated as atomic here, because the table is not really committed at the end of CREATE TABLE processing. It gets committed by a explicit call to COMMIT after INSERTing rows into the table.

Parameters

lex	pointer to LEX object of being executed statement

is_sql_require_primary_key_needed()

static bool is_sql_require_primary_key_needed ( const LEX *  lex )

static

Returns whether or not the statement held by the LEX object parameter requires Q_SQL_REQUIRE_PRIMARY_KEY to be logged together with the statement.

last_uniq_key()

static int last_uniq_key ( TABLE *  table, uint  keyno  )

static

net_field_length_checked< size_t >()

template bool net_field_length_checked< size_t >	(	const uchar **	packet,
		size_t *	max_length,
		size_t *	out
	)

net_field_length_checked< ulonglong >()

template bool net_field_length_checked< ulonglong >	(	const uchar **	packet,
		size_t *	max_length,
		ulonglong *	out
	)

pretty_print_str() [1/2]

static void pretty_print_str ( String *  packet, const char *  str, size_t  len  )

static

pretty_print_str() [2/2]

static void pretty_print_str ( String *  packet, const String *  str  )

inlinestatic

record_compare()

static bool record_compare ( TABLE *  table, MY_BITMAP *  cols  )

static

Compare full record only if:

• there are no blob fields (otherwise we would also need to compare blobs contents as well);
• there are no varchar fields (otherwise we would also need to compare varchar contents as well);
• there are no null fields, otherwise NULLed fields contents (i.e., the don't care bytes) may show arbitrary values, depending on how each engine handles internally.
• if all the bitmap is set (both are full rows)

rows_event_stmt_cleanup()

static int rows_event_stmt_cleanup ( Relay_log_info const *  rli, THD *  thd  )

static

The function is called at Rows_log_event statement commit time, normally from Rows_log_event::do_update_pos() and possibly from Query_log_event::do_apply_event() of the COMMIT.

The function commits the last statement for engines, binlog and releases resources have been allocated for the statement.

Return values

0	Ok.
non-zero	Error at the commit.

schedule_next_event()

static bool schedule_next_event ( Log_event *  ev, Relay_log_info *  rli  )

static

search_key_in_table()

static uint search_key_in_table ( TABLE *  table, MY_BITMAP *  bi_cols, uint  key_type  )

static

Searches the table for a given key that can be used according to the existing values, ie, columns set in the bitmap.

The caller can specify which type of key to find by setting the following flags in the key_type parameter:

• PRI_KEY_FLAG Returns the primary key.
• UNIQUE_KEY_FLAG Returns a unique key (flagged with HA_NOSAME)
• MULTIPLE_KEY_FLAG Returns a key that is not unique (flagged with HA_NOSAME and without HA_NULL_PART_KEY) nor PK.

The above flags can be used together, in which case, the search is conducted in the above listed order. Eg, the following flag:

(PRI_KEY_FLAG | UNIQUE_KEY_FLAG | MULTIPLE_KEY_FLAG)

means that a primary key is returned if it is suitable. If not then the unique keys are searched. If no unique key is suitable, then the keys are searched. Finally, if no key is suitable, MAX_KEY is returned.

Parameters

table	reference to the table.
bi_cols	a bitmap that filters out columns that should not be considered while searching the key. Columns that should be considered are set.
key_type	the type of key to search for.

Returns

MAX_KEY if no key, according to the key_type specified is suitable. Returns the key otherwise.

set_extra_data()

static const uchar * set_extra_data ( uchar *  arr, int  reset_limit  )

static

set_extra_data

Called during self-test to generate various self-consistent binlog row event extra thread data structures which can be checked when reading the binlog.

Note

if you are using this debug point, find the number of times this method is used for your test and then use that value for the reset_limit parameter in order to avoid inter test contamination.

Parameters

arr	Buffer to use
reset_limit	the limit upon which the counters reset

set_thd_db()

static bool set_thd_db ( THD *  thd, const char *  db, size_t  db_len  )

static

Set the rewritten database, or current database if it should not be rewritten, into THD.

Parameters

thd	THD handle
db	database name
db_len	the length of database name

Return values

true	if the passed db is rewritten.
false	if the passed db is not rewritten.

shall_delete_event_after_apply()

static bool shall_delete_event_after_apply ( Log_event *  ev )

static

slave_load_file_stem()

static char * slave_load_file_stem ( char *  buf, uint  file_id, int  event_server_id, const char *  ext  )

static

Creates a temporary name for load data infile:.

Parameters

buf	Store new filename here
file_id	File_id (part of file name)
event_server_id	Event_id (part of file name)
ext	Extension for file name

Returns

Pointer to start of extension

slave_rows_error_report()

static void slave_rows_error_report ( enum loglevel  level, int  ha_error, Relay_log_info const *  rli, THD *  thd, TABLE *  table, const char *  type, const char *  log_name, ulong  pos  )

inlinestatic

Error reporting facility for Rows_log_event::do_apply_event.

Parameters

level	error, warning or info
ha_error	HA_ERR_ code
rli	pointer to the active Relay_log_info instance
thd	pointer to the slave thread's thd
table	pointer to the event's table object
type	the type of the event
log_name	the master binlog file name
pos	the master binlog file pos (the next after the event)

store_compressed_length()

static void store_compressed_length ( String &  str_buf, ulonglong  length  )

inlinestatic

stores an integer into packed format.

Parameters

[out]	str_buf	a buffer where the packed integer will be stored.
[in]	length	the integer will be packed.

unexpected_error_code()

bool unexpected_error_code ( int  unexpected_error )

inline

write_str_at_most_255_bytes()

static bool write_str_at_most_255_bytes ( Basic_ostream *  ostream, const char *  str, uint  length  )

static

write_str_with_code_and_len()

static void write_str_with_code_and_len ( uchar **  dst, const char *  src, size_t  len, uint  code  )

static

Utility function for the next method (Query_log_event::write()) .

write_tlv_field() [1/2]

static bool write_tlv_field ( String &  str_buf, enum Table_map_log_event::Optional_metadata_field_type  type, const String &  value  )

inlinestatic

Write data into str_buf with Type|Length|Value(TLV) format.

Parameters

[out]	str_buf	a buffer where the field is stored.
[in]	type	type of the field
[in]	value	value of the field

write_tlv_field() [2/2]

static bool write_tlv_field ( String &  str_buf, enum Table_map_log_event::Optional_metadata_field_type  type, uint  length, const uchar *  value  )

inlinestatic

Write data into str_buf with Type|Length|Value(TLV) format.

Parameters

[out]	str_buf	a buffer where the field is stored.
[in]	type	type of the field
[in]	length	length of the field value
[in]	value	value of the field

Variable Documentation

binlog_checksum_type_length

unsigned int binlog_checksum_type_length[]

Initial value:

= {sizeof("NONE") - 1,
                                              sizeof("CRC32") - 1, 0}

binlog_checksum_type_names

const char* binlog_checksum_type_names[] = {"NONE", "CRC32", NullS}

BINLOG_CHECKSUM variable.

dbug_extra_row_ndb_info_val

uchar dbug_extra_row_ndb_info_val = 0

static

dbug_extra_row_ndb_info_val_limit

int dbug_extra_row_ndb_info_val_limit = 0

static

key_memory_log_event

PSI_memory_key key_memory_log_event

slave_ignored_err_throttle

Error_log_throttle slave_ignored_err_throttle(window_size, INFORMATION_LEVEL, ER_SERVER_REPLICA_IGNORED_TABLE, "Repl", "Error log throttle: %lu time(s) Error_code: 1237" " \"Replica SQL thread ignored the query because of" " replicate-*-table rules\" got suppressed.")	(	window_size	,
		INFORMATION_LEVEL	,
		ER_SERVER_REPLICA_IGNORED_TABLE	,
		"Repl"	,
		"Error log throttle: %lu time(s) Error_code: 1237" " \"Replica SQL thread ignored the query because of" " replicate-*-table rules\" got suppressed."
	)