298#ifdef INNODB_DD_TABLE
322#define SRV_BUF_DUMP_FILENAME_DEFAULT "ib_buffer_pool"
341#define SRV_AUTO_EXTEND_INCREMENT (srv_sys_space.get_autoextend_increment())
343#ifndef UNIV_HOTBACKUP
453#ifdef UNIV_DEBUG_DEDICATED
454extern ulong srv_debug_system_mem_size;
731#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
783#ifndef UNIV_HOTBACKUP
789#ifdef UNIV_PFS_THREAD
828#ifdef HAVE_PSI_STAGE_INTERFACE
905enum srv_win_flush_t {
907 SRV_WIN_IO_UNBUFFERED = 0,
911extern enum srv_win_flush_t srv_win_file_flush_method;
914 return (srv_win_file_flush_method == SRV_WIN_IO_UNBUFFERED);
1003#ifndef UNIV_HOTBACKUP
1120 void *var_ptr,
const void *save);
1225#ifndef UNIV_HOTBACKUP
uint32_t space_id_t
Tablespace identifier.
Definition: api0api.h:48
Buffer pool checksum functions, also linked from /extra/innochecksum.cc.
Definition: os0thread.h:47
Class to write and replay ddl logs.
Definition: log0ddl.h:416
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_lexer_thd.h:36
const char * p
Definition: ctype-mb.cc:1235
dberr_t
Definition: db0err.h:39
The low-level file system.
#define UINT32_MAX
Definition: lexyy.cc:86
uint64_t lsn_t
Type used for all log sequence number storage and arithmetic.
Definition: log0types.h:63
unsigned long long int ulonglong
Definition: my_inttypes.h:56
long long int longlong
Definition: my_inttypes.h:55
Instrumentation helpers for stages.
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1081
const std::string FILE("FILE")
std::string file_name(Log_file_id file_id)
Provides name of the log file with the given file id, e.g.
Definition: log0pre_8_0_30.cc:94
The interface to the operating system condition variables.
The interface to the operating system file io.
constexpr uint32_t OS_FILE_MAX_PATH
Definition: os0file.h:650
The interface to the operating system process and thread control primitives.
Query graph global types.
required string type
Definition: replication_group_member_actions.proto:34
InnoDB concurrency manager header file.
bool high_level_read_only
Set if InnoDB operates in read-only mode or innodb-force-recovery is greater than SRV_FORCE_NO_TRX_UN...
Definition: srv0srv.cc:212
PSI_stage_info srv_stage_alter_tablespace_encryption
Performance schema stage event for monitoring ALTER TABLESPACE ENCRYPTION progress.
Definition: srv0srv.cc:843
ib_mutex_t srv_monitor_file_mutex
Definition: srv0srv.cc:629
FILE * srv_monitor_file
Temporary file for innodb monitor output.
Definition: srv0srv.cc:632
ulint srv_buf_pool_size
Requested size in bytes.
Definition: srv0srv.cc:424
constexpr uint32_t SRV_MAX_IO_CAPACITY_DUMMY_DEFAULT
Definition: srv0srv.h:633
mysql_pfs_key_t log_archiver_thread_key
ulong srv_buf_pool_dump_pct
Dump this % of each buffer pool during BP dump.
Definition: srv0srv.cc:462
ulong srv_log_n_files
Value of innodb_log_files_in_group.
Definition: srv0srv.cc:243
bool set_undo_tablespace_encryption(space_id_t space_id, mtr_t *mtr)
Set encryption for UNDO tablespace with given space id.
Definition: srv0srv.cc:2547
ulong srv_log_wait_for_flush_timeout
Timeout used when waiting for redo flush (microseconds).
Definition: srv0srv.cc:317
bool srv_numa_interleave
Definition: srv0srv.cc:222
void set_srv_redo_log(bool enable)
Set redo log variable for performance schema global status.
Definition: srv0srv.cc:3275
bool srv_thread_is_active(const IB_thread &thread)
Check if given thread is still active.
Definition: srv0srv.cc:3261
mysql_pfs_key_t log_flush_notifier_thread_key
srv_thread_type
Types of threads existing in the system.
Definition: srv0srv.h:962
@ SRV_WORKER
threads serving parallelized queries and queries released from lock wait
Definition: srv0srv.h:964
@ SRV_MASTER
the master thread, (whose type number must be biggest)
Definition: srv0srv.h:968
@ SRV_NONE
None.
Definition: srv0srv.h:963
@ SRV_PURGE
Purge coordinator thread.
Definition: srv0srv.h:967
mysql_pfs_key_t srv_lock_timeout_thread_key
ulong srv_n_write_io_threads
Definition: srv0srv.cc:472
void srv_wake_purge_thread_if_not_active(void)
Tells the purge thread that there has been activity in the database and wakes up the purge thread if ...
Definition: srv0srv.cc:1960
ulong srv_log_write_notifier_spin_delay
Number of spin iterations, for which log write notifier thread is waiting for advanced writeed_to_dis...
Definition: srv0srv.cc:357
bool srv_buffer_pool_dump_at_shutdown
Boolean config knobs that tell InnoDB to dump the buffer pool at shutdown and/or load it during start...
Definition: srv0srv.cc:796
constexpr uint32_t SRV_MAX_IO_CAPACITY_LIMIT
Definition: srv0srv.h:634
mysql_pfs_key_t ddl_thread_key
mysql_pfs_key_t fts_parallel_tokenization_thread_key
PSI_stage_info srv_stage_alter_table_log_table
Performance schema stage event for monitoring ALTER TABLE progress row_log_table_apply().
Definition: srv0srv.cc:828
const ulonglong srv_buf_pool_chunk_unit_min
Minimum buffer pool chunk size.
Definition: srv0srv.cc:435
bool srv_sync_debug
Definition: sync0debug.cc:66
ulong srv_checksum_algorithm
the macro MYSQL_SYSVAR_ENUM() requires "long unsigned int" and if we use srv_checksum_algorithm_t her...
Definition: checksum.cc:57
@ SRV_FORCE_NO_BACKGROUND
prevent the main thread from running: if a crash would occur in purge, this prevents it
Definition: srv0srv.h:927
@ SRV_FORCE_NO_IBUF_MERGE
prevent also ibuf operations: if they would cause a crash, better not do them
Definition: srv0srv.h:932
@ SRV_FORCE_NO_LOG_REDO
do not do the log roll-forward in connection with recovery
Definition: srv0srv.h:939
@ SRV_FORCE_IGNORE_CORRUPT
let the server run even if it detects a corrupt page
Definition: srv0srv.h:925
@ SRV_FORCE_NO_TRX_UNDO
do not run trx rollback after recovery
Definition: srv0srv.h:930
@ SRV_FORCE_NO_UNDO_LOG_SCAN
do not look at undo logs when starting the database: InnoDB will treat even incomplete transactions a...
Definition: srv0srv.h:935
ulong srv_log_flush_notifier_spin_delay
Number of spin iterations, for which log flush notifier thread is waiting for advanced flushed_to_dis...
Definition: srv0srv.cc:370
ulong srv_fast_shutdown
The value of the configuration parameter innodb_fast_shutdown, controlling the InnoDB shutdown.
Definition: srv0srv.cc:568
ulong srv_log_wait_for_write_spin_delay
Number of spin iterations, when spinning and waiting for log buffer written up to given LSN,...
Definition: srv0srv.cc:301
ib_mutex_t page_zip_stat_per_index_mutex
Mutex protecting page_zip_stat_per_index.
Definition: srv0srv.cc:626
mysql_pfs_key_t log_flusher_thread_key
PSI_stage_info srv_stage_alter_table_flush
Performance schema stage event for monitoring ALTER TABLE progress log_make_latest_checkpoint().
Definition: srv0srv.cc:813
bool srv_btr_search_enabled
A value that basically stores the same as btr_search_enabled, but is not atomic and thus can be used ...
Definition: btr0sea.cc:67
unsigned long long srv_max_undo_tablespace_size
Maximum size of undo tablespace.
Definition: srv0srv.cc:190
ulong srv_log_write_ahead_size
Size of block, used for writing ahead to avoid read-on-write.
Definition: srv0srv.h:561
bool srv_print_ddl_logs
Print all DDL logs to mysqld stderr.
Definition: srv0srv.cc:548
uint srv_change_buffer_max_size
Maximum on-disk size of change buffer in terms of percentage of the buffer pool.
Definition: srv0srv.cc:483
bool srv_use_fdatasync
Use fdatasync() instead of fsync().
Definition: srv0srv.cc:450
void srv_purge_wakeup(void)
Wakeup the purge threads.
Definition: srv0srv.cc:3223
PSI_stage_info srv_stage_alter_table_end
Performance schema stage event for monitoring ALTER TABLE progress everything after flush log_make_la...
Definition: srv0srv.cc:808
ulong srv_sync_array_size
User configured sync array size.
Definition: sync0arr.cc:58
ulong srv_force_recovery_crash
Inject a crash at different steps of the recovery process.
Definition: srv0srv.cc:541
const ulint srv_buf_pool_def_size
Default pool size in bytes.
Definition: srv0srv.cc:428
void undo_spaces_deinit()
Free the resources occupied by undo::spaces and trx_sys_undo_spaces, called once during thread de-ini...
Definition: srv0start.cc:1153
char * srv_log_group_home_dir
Definition: srv0srv.cc:238
bool srv_ibuf_disable_background_merge
Definition: ibuf0ibuf.cc:45
mysql_pfs_key_t io_read_thread_key
std::chrono::seconds get_srv_flush_log_at_timeout()
Definition: srv0srv.cc:396
mysql_pfs_key_t srv_monitor_thread_key
uint srv_log_spin_cpu_pct_hwm
Maximum percentage of cpu time for which spin-delay is used.
Definition: srv0srv.cc:268
bool srv_stats_auto_recalc
Definition: srv0srv.cc:583
constexpr uint32_t MAX_PURGE_THREADS
Maximum number of purge threads, including the purge coordinator.
Definition: srv0srv.h:644
ulong srv_max_io_capacity
Definition: srv0srv.cc:493
ulong srv_log_flusher_spin_delay
Number of spin iterations, for which log flusher thread is waiting for new data to flush,...
Definition: srv0srv.cc:346
bool srv_purge_threads_active()
Check if the purge threads are active, both coordinator and worker threads.
Definition: srv0srv.cc:3240
const ulonglong srv_buf_pool_chunk_unit_blk_sz
The buffer pool chunk size must be a multiple of this number.
Definition: srv0srv.cc:437
void srv_worker_thread()
Worker thread that reads tasks from the work queue and executes them.
Definition: srv0srv.cc:2841
void srv_export_innodb_status(void)
Function to pass InnoDB status variables to MySQL.
Definition: srv0srv.cc:1569
ulong srv_undo_tablespaces
Number of undo tablespaces to use.
Definition: srv0srv.cc:159
ulong srv_spin_wait_delay
Definition: ut0mutex.h:107
std::chrono::milliseconds get_srv_replication_delay()
Definition: srv0srv.cc:586
std::atomic_uint32_t srv_innodb_needs_monitoring
In contrast to srv_print_innodb_monitor which is controlled by the user, this variable is controlled ...
Definition: srv0srv.cc:610
bool srv_file_per_table
store to its own file each table created by an user; data dictionary tables are in the system tablesp...
Definition: srv0srv.cc:204
const char * srv_main_thread_op_info
Definition: srv0srv.cc:133
const ulint srv_buf_pool_min_size
Minimum pool size in bytes.
Definition: srv0srv.cc:426
double srv_max_dirty_pages_pct_lwm
Definition: srv0srv.cc:504
mysql_pfs_key_t srv_ts_alter_encrypt_thread_key
ulong srv_log_buffer_size
Space for log buffer, expressed in bytes.
Definition: srv0srv.cc:256
void srv_inc_activity_count(void)
Increment the server activity counter.
Definition: srv0srv.cc:1906
ulong srv_log_recent_written_size
Number of slots in a small buffer, which is used to allow concurrent writes to log buffer.
Definition: srv0srv.cc:291
constexpr uint32_t SRV_MAX_N_IO_THREADS
Definition: srv0srv.h:753
double srv_max_buf_pool_modified_pct
Definition: srv0srv.cc:503
ulong srv_flush_log_at_trx_commit
Definition: srv0srv.cc:394
FILE * srv_misc_tmpfile
Temporary file for miscellaneous diagnostic output.
Definition: srv0srv.cc:638
void srv_purge_coordinator_thread()
Purge coordinator thread that schedules the purge tasks.
Definition: srv0srv.cc:3084
bool srv_adaptive_flushing
Definition: srv0srv.cc:406
bool srv_enable_redo_encryption()
Enable REDO log encryption.
Definition: srv0srv.cc:2513
bool srv_cmp_per_index_enabled
Enable INFORMATION_SCHEMA.innodb_cmp_per_index.
Definition: srv0srv.cc:551
bool srv_downgrade_partition_files
Definition: srv0srv.cc:119
void srv_set_io_thread_op_info(ulint i, const char *str)
Sets the info describing an i/o thread current state.
Definition: srv0srv.cc:879
dberr_t srv_undo_tablespace_create(const char *space_name, const char *file_name, space_id_t space_id)
Create an undo tablespace with an explicit file name This is called during CREATE UNDO TABLESPACE.
Definition: srv0start.cc:1072
enum srv_unix_flush_t srv_unix_file_flush_method
Definition: srv0srv.cc:486
ulong srv_LRU_scan_depth
Scan depth for LRU flush batch i.e.
Definition: srv0srv.cc:452
void srv_free(void)
Frees the data structures created in srv_init().
Definition: srv0srv.cc:1213
ulong srv_log_write_events
Number of events used for notifications about redo write.
Definition: srv0srv.cc:283
ulint srv_buf_pool_base_size
Current size as scaling factor for the other components.
Definition: srv0srv.cc:458
ulong srv_n_spin_wait_rounds
Definition: ut0mutex.h:108
void srv_thread_delay_cleanup_if_needed(bool wait_for_signal)
Delay the thread after it discovered that the shutdown_state is greater or equal to SRV_SHUTDOWN_CLEA...
Definition: srv0start.cc:2940
ulong srv_log_writer_timeout
Initial timeout used to wait on writer_event.
Definition: srv0srv.cc:329
static ulong PCT_IO(ulong p)
Definition: srv0srv.h:639
mysql_pfs_key_t clone_gtid_thread_key
unsigned long long srv_stats_persistent_sample_pages
Definition: srv0srv.cc:582
mysql_pfs_key_t parallel_read_thread_key
bool srv_disable_sort_file_cache
Whether to disable file system cache.
Definition: ddl0ddl.cc:47
const ulonglong srv_buf_pool_chunk_unit_max
Maximum buffer pool chunk size.
Definition: srv0srv.cc:439
mysql_pfs_key_t recv_writer_thread_key
void srv_active_wake_master_thread_low(void)
Tells the Innobase server that there has been activity in the database and wakes up the master thread...
Definition: srv0srv.cc:1924
ulong srv_dblwr_pages
Number of pages per doublewrite thread/segment.
ulong srv_idle_flush_pct
How much flush to be done in case of server is idle.
Definition: srv0srv.cc:467
bool srv_use_native_aio
If this flag is true, then we will use the native aio of the OS (provided we compiled Innobase with i...
Definition: srv0srv.cc:220
mysql_pfs_key_t srv_error_monitor_thread_key
mysql_pfs_key_t io_write_thread_key
mysql_pfs_key_t dict_stats_thread_key
ulong srv_flush_neighbors
Whether or not to flush neighbors of a block.
Definition: srv0srv.cc:454
bool tbsp_extend_and_initialize
Enable or disable writing of NULLs while extending a tablespace.
Definition: srv0srv.cc:524
void srv_que_task_enqueue_low(que_thr_t *thr)
Enqueues a task to server task queue and releases a worker thread, if there is a suspended one.
Definition: srv0srv.cc:3202
bool srv_buf_pool_debug
This is used to enable multiple buffer pool instances with small buffer pool size.
Definition: buf0buf.cc:337
bool srv_printf_innodb_monitor(FILE *file, bool nowait, ulint *trx_start, ulint *trx_end)
Outputs to a file the output of the InnoDB Monitor.
Definition: srv0srv.cc:1345
ulong srv_log_wait_for_write_timeout
Timeout used when waiting for redo write (microseconds).
Definition: srv0srv.cc:305
bool srv_log_writer_threads
Whether to activate/pause the log writer threads.
Definition: srv0srv.cc:262
char * srv_buf_dump_filename
The buffer pool dump/load file name.
Definition: srv0srv.cc:792
ulong srv_log_writer_spin_delay
Number of spin iterations, for which log writer thread is waiting for new data to write or flush with...
Definition: srv0srv.cc:326
std::atomic< int > srv_fatal_semaphore_wait_extend
Definition: srv0srv.cc:123
void undo_spaces_init()
Initialize undo::spaces and trx_sys_undo_spaces, called once during srv_start().
Definition: srv0start.cc:1140
bool srv_redo_log
If innodb redo logging is enabled.
Definition: srv0srv.cc:554
ulint srv_dml_needed_delay
Definition: srv0srv.cc:131
bool srv_priority_boost
Definition: srv0srv.cc:593
mysql_pfs_key_t buf_dump_thread_key
void srv_wake_master_thread(void)
Wakes up the master thread if it is suspended or being suspended.
Definition: srv0srv.cc:1970
ulong srv_max_purge_lag
Maximum allowable purge history length.
Definition: trx0purge.cc:71
struct export_var_t export_vars
Status variables to be passed to MySQL.
Definition: srv0srv.cc:531
uint32_t srv_rseg_init_threads
Number of threads spawned for initializing rollback segments in parallel.
Definition: srv0srv.cc:151
char * srv_undo_dir
Server undo tablespaces directory, can be absolute path.
Definition: srv0srv.cc:155
ulint srv_truncated_status_writes
Definition: srv0srv.cc:607
std::chrono::milliseconds get_srv_log_checkpoint_every()
Period every which a periodical checkpoint is written by the log checkpointer thread (unless periodic...
Definition: srv0srv.cc:340
bool srv_undo_log_encrypt
Enable or disable Encrypt of UNDO tablespace.
Definition: srv0srv.cc:187
const char * srv_io_thread_function[]
Definition: srv0srv.cc:617
std::chrono::microseconds get_srv_log_wait_for_flush_timeout()
Timeout used when waiting for redo flush.
Definition: srv0srv.cc:320
ulint srv_lock_table_size
Lock table size in bytes.
Definition: srv0srv.cc:464
bool srv_validate_tablespace_paths
Whether to validate InnoDB tablespace paths on startup.
Definition: srv0srv.cc:448
bool srv_check_activity(ulint old_activity_count)
Check if there has been any activity.
Definition: srv0srv.cc:1987
std::chrono::microseconds get_srv_log_write_notifier_timeout()
Initial timeout used to wait on write_notifier_event.
Definition: srv0srv.cc:364
ulint srv_get_activity_count(void)
Get current server activity count.
Definition: srv0srv.cc:1981
ulonglong srv_buf_pool_chunk_unit
Requested buffer pool chunk size.
Definition: srv0srv.cc:433
ulong srv_log_wait_for_flush_spin_delay
Number of spin iterations, when spinning and waiting for log flushed.
Definition: srv0srv.cc:313
char * srv_innodb_directories
The innodb_directories variable value.
Definition: srv0srv.cc:147
ulong srv_innodb_stats_method
Definition: srv0srv.cc:522
bool srv_master_thread_disabled_debug
Value of MySQL global used to disable master thread.
Definition: srv0srv.cc:230
ulong srv_debug_compress
Force all user tables to use page compression.
Definition: srv0srv.cc:226
void srv_boot(void)
Boots Innobase server.
Definition: srv0srv.cc:1284
PSI_stage_info srv_stage_clone_file_copy
Performance schema stage event for monitoring clone file copy progress.
Definition: srv0srv.cc:853
const ulong srv_idle_flush_pct_default
Default value of srv_idle_flush_pct.
Definition: srv0srv.cc:466
bool srv_print_innodb_monitor
Definition: srv0srv.cc:609
ulonglong srv_log_file_size
Value of innodb_log_file_size.
Definition: srv0srv.cc:245
ulong srv_buf_pool_instances
Requested number of buffer pool instances.
Definition: srv0srv.cc:442
mysql_pfs_key_t log_write_notifier_thread_key
srv_unix_flush_t
Alternatives for the file flush option in Unix.
Definition: srv0srv.h:877
@ SRV_UNIX_O_DSYNC
open log files in O_SYNC mode
Definition: srv0srv.h:881
@ SRV_UNIX_FSYNC
fsync, the default if O_DIRECT is not supported
Definition: srv0srv.h:879
@ SRV_UNIX_NOSYNC
do not flush after writing
Definition: srv0srv.h:886
@ SRV_UNIX_O_DIRECT_NO_FSYNC
do not use fsync() when using direct IO i.e.
Definition: srv0srv.h:894
@ SRV_UNIX_LITTLESYNC
do not call os_file_flush() when writing data files, but do flush after writing to log files
Definition: srv0srv.h:884
@ SRV_UNIX_O_DIRECT
invoke os_file_set_nocache() on data files.
Definition: srv0srv.h:890
mysql_pfs_key_t log_writer_thread_key
mysql_pfs_key_t buf_resize_thread_key
bool srv_is_direct_io()
Definition: srv0srv.h:898
bool srv_upgrade_old_undo_found
ulong srv_n_page_hash_locks
Number of locks to protect buf_pool->page_hash.
Definition: srv0srv.cc:446
bool srv_checkpoint_disabled
If true then disable checkpointing.
Definition: srv0srv.cc:388
std::chrono::seconds get_srv_fatal_semaphore_wait_threshold()
Definition: srv0srv.cc:125
ulong srv_adaptive_max_sleep_delay
Maximum sleep delay (in micro-seconds), value of 0 disables it.
Definition: srv0conc.cc:63
ulong srv_parallel_read_threads
Number of threads to use for parallel reads.
Definition: srv0srv.cc:215
unsigned long long srv_online_max_size
Maximum modification log file size for online index creation.
Definition: srv0srv.cc:209
ulong srv_flushing_avg_loops
Definition: srv0srv.cc:511
ulong srv_log_recent_closed_size
Number of slots in a small buffer, which is used to break requirement for total order of dirty pages,...
Definition: srv0srv.cc:296
bool srv_inject_too_many_concurrent_trxs
Definition: srv0srv.cc:390
ulint srv_buf_pool_old_size
Previously requested size.
Definition: srv0srv.cc:456
char * srv_data_home
Definition: srv0srv.cc:140
bool srv_load_corrupted
Definition: dict0load.cc:139
ulong srv_n_page_cleaners
Definition: srv0srv.cc:496
ulong srv_log_checkpoint_every
Number of milliseconds every which a periodical checkpoint is written by the log checkpointer thread ...
Definition: srv0srv.cc:338
bool srv_random_read_ahead
Definition: srv0srv.cc:475
bool srv_buffer_pool_load_at_startup
Definition: srv0srv.cc:797
ulong srv_n_read_io_threads
Definition: srv0srv.cc:471
ulong srv_n_free_tickets_to_enter
Number of times a thread is allowed to enter InnoDB within the same SQL query after it has once got t...
Definition: srv0conc.cc:60
PSI_stage_info srv_stage_buffer_pool_load
Performance schema stage event for monitoring buffer pool load progress.
Definition: srv0srv.cc:848
ulong srv_log_flush_notifier_timeout
Initial timeout used to wait on flush_notifier_event.
Definition: srv0srv.cc:374
double srv_max_dirty_pages_pct
ulong srv_replication_delay
Definition: srv0srv.cc:585
mysql_pfs_key_t srv_purge_thread_key
std::chrono::microseconds get_srv_log_flush_notifier_timeout()
Initial timeout used to wait on flush_notifier_event.
Definition: srv0srv.cc:377
void srv_master_thread_disabled_debug_update(THD *thd, SYS_VAR *var, void *var_ptr, const void *save)
Disables master thread.
Definition: srv0srv.cc:2065
ulong srv_purge_batch_size
Definition: srv0srv.cc:517
os_event_t srv_monitor_event
Event to signal the monitor thread.
Definition: srv0srv.cc:780
ulonglong srv_redo_log_capacity
Value of innodb_redo_log_capacity.
Definition: srv0srv.cc:247
PSI_stage_info srv_stage_alter_table_read_pk_internal_sort
Performance schema stage event for monitoring ALTER TABLE progress row_merge_read_clustered_index().
Definition: srv0srv.cc:837
mysql_pfs_key_t srv_master_thread_key
ulonglong srv_redo_log_capacity_used
Assumed value of innodb_redo_log_capacity's - value which is used.
Definition: srv0srv.cc:247
ulong srv_purge_rseg_truncate_frequency
Rate at which UNDO records should be purged.
Definition: srv0srv.cc:175
os_event_t srv_error_event
Event to signal the error thread.
Definition: srv0srv.cc:783
PSI_stage_info srv_stage_alter_table_insert
Performance schema stage event for monitoring ALTER TABLE progress row_merge_insert_index_tuples().
Definition: srv0srv.cc:817
mysql_pfs_key_t io_ibuf_thread_key
srv_stats_method_name_enum
Definition: srv0srv.h:945
@ SRV_STATS_NULLS_UNEQUAL
Definition: srv0srv.h:949
@ SRV_STATS_NULLS_IGNORED
Definition: srv0srv.h:951
@ SRV_STATS_NULLS_EQUAL
Definition: srv0srv.h:946
PSI_stage_info srv_stage_alter_table_merge_sort
Performance schema stage event for monitoring ALTER TABLE progress row_merge_sort().
Definition: srv0srv.cc:833
PSI_stage_info srv_stage_clone_page_copy
Performance schema stage event for monitoring clone page copy progress.
Definition: srv0srv.cc:861
uint srv_log_spin_cpu_abs_lwm
Minimum absolute value of cpu time for which spin-delay is used.
Definition: srv0srv.cc:265
os_event_t srv_buf_dump_event
The buffer pool dump/load thread waits on this event.
Definition: srv0srv.cc:786
bool srv_stats_persistent
Definition: srv0srv.cc:580
ulong srv_read_ahead_threshold
Definition: srv0srv.cc:479
void innobase_set_open_files_limit(long new_limit)
Sets new value of the "innodb_open_files" configuration variable to present to users.
Definition: ha_innodb.cc:5021
mysql_pfs_key_t log_checkpointer_thread_key
mysql_pfs_key_t page_flush_thread_key
bool srv_read_only_mode
Set if InnoDB must operate in read-only mode.
Definition: srv0srv.cc:200
ulong srv_log_wait_for_flush_spin_hwm
Maximum value of average log flush time for which spin-delay is used.
Definition: srv0srv.cc:273
bool srv_purge_view_update_only_debug
Definition: trx0purge.cc:87
mysql_pfs_key_t log_files_governor_thread_key
ulong srv_log_write_max_size
When log writer follows links in the log recent written buffer, it stops when it has reached at least...
Definition: srv0srv.cc:280
void srv_monitor_thread()
A thread which prints the info output by various InnoDB monitors.
Definition: srv0srv.cc:1775
bool srv_log_checksums
Whether to generate and require checksums on the redo log pages.
Definition: srv0srv.cc:384
bool srv_innodb_status
Definition: srv0srv.cc:571
enum srv_stats_method_name_enum srv_stats_method_name_t
Definition: srv0srv.h:954
const longlong srv_buf_pool_max_size
Maximum pool size in bytes.
Definition: srv0srv.cc:430
Srv_cpu_usage srv_cpu_usage
Structure with cpu usage information.
Definition: srv0srv.cc:107
mysql_pfs_key_t page_archiver_thread_key
bool srv_undo_log_truncate
Enable or Disable Truncate of UNDO tablespace.
Definition: srv0srv.cc:184
mysql_pfs_key_t clone_ddl_thread_key
uint buf_LRU_old_threshold
Move blocks to "new" LRU list only if the first access was at least this many milliseconds ago.
Definition: buf0lru.cc:132
ulong srv_fatal_semaphore_wait_threshold
Definition: srv0srv.cc:122
mysql_pfs_key_t parallel_rseg_init_thread_key
bool srv_print_innodb_lock_monitor
Definition: srv0srv.cc:611
ib_mutex_t srv_misc_tmpfile_mutex
Mutex for locking srv_misc_tmpfile.
Definition: srv0srv.cc:636
ulong srv_force_recovery
Normally 0.
Definition: srv0srv.cc:537
bool srv_stats_include_delete_marked
Definition: srv0srv.cc:581
ulong srv_adaptive_flushing_lwm
Definition: srv0srv.cc:508
ulong srv_n_purge_threads
Definition: srv0srv.cc:514
std::chrono::microseconds get_srv_log_writer_timeout()
Initial timeout used to wait on writer_event.
Definition: srv0srv.cc:331
ulong srv_log_write_notifier_timeout
Initial timeout used to wait on write_notifier_event.
Definition: srv0srv.cc:361
const char * srv_io_thread_op_info[]
Definition: srv0srv.cc:616
bool srv_dedicated_server
Dedicated server setting.
Definition: srv0srv.cc:422
Log_DDL * log_ddl
Object to handle Log_DDL.
Definition: log0ddl.cc:63
std::chrono::microseconds get_srv_log_wait_for_write_timeout()
Timeout used when waiting for redo write.
Definition: srv0srv.cc:308
bool srv_flush_sync
Definition: srv0srv.cc:409
PSI_stage_info srv_stage_clone_redo_copy
Performance schema stage event for monitoring clone redo copy progress.
Definition: srv0srv.cc:857
uint srv_flush_log_at_timeout
Definition: srv0srv.cc:395
long long srv_buf_pool_curr_size
Current size in bytes.
Definition: srv0srv.cc:460
ulong srv_log_flush_events
Number of events used for notifications about redo flush.
Definition: srv0srv.cc:286
ulong srv_log_flusher_timeout
Initial timeout used to wait on flusher_event.
Definition: srv0srv.cc:349
void srv_reset_io_thread_op_info()
Resets the info describing an i/o thread current state.
Definition: srv0srv.cc:886
unsigned long long srv_stats_transient_sample_pages
Definition: srv0srv.cc:579
mysql_pfs_key_t bulk_flusher_thread_key
srv_stats_t srv_stats
Global counters.
Definition: srv0srv.cc:527
ulong srv_io_capacity
Definition: srv0srv.cc:492
mysql_pfs_key_t trx_recovery_rollback_thread_key
bool srv_master_thread_is_active()
Check whether the master thread is active.
Definition: srv0srv.cc:1915
void srv_error_monitor_thread()
A thread which prints warnings about semaphore waits which have lasted too long.
Definition: srv0srv.cc:1835
mysql_pfs_key_t srv_worker_thread_key
void srv_master_thread()
The master thread controlling the server.
Definition: srv0srv.cc:2742
const size_t CONCURRENT_UNDO_TRUNCATE_LIMIT
Maximum number of recently truncated undo tablespace IDs for the same undo number.
Definition: srv0srv.cc:194
ulong srv_sort_buf_size
Sort buffer size in index creation.
Definition: srv0srv.cc:207
Srv_threads srv_threads
Structure with state of srv background threads.
Definition: srv0srv.cc:104
PSI_stage_info srv_stage_alter_table_log_index
Performance schema stage event for monitoring ALTER TABLE progress row_log_apply().
Definition: srv0srv.cc:822
const ulong srv_buf_pool_instances_default
Default number of buffer pool instances.
Definition: srv0srv.cc:444
ulong srv_thread_sleep_delay
Sleep delay for threads waiting to enter InnoDB.
Definition: srv0conc.cc:65
mysql_pfs_key_t page_flush_coordinator_thread_key
std::chrono::microseconds get_srv_log_flusher_timeout()
Initial timeout used to wait on flusher_event.
Definition: srv0srv.cc:351
ulint srv_release_threads(enum srv_thread_type type, ulint n)
Releases threads of the type given from suspension in the thread table.
Definition: srv0srv.cc:1028
bool srv_print_all_deadlocks
Print all user-level transactions deadlocks to mysqld stderr.
Definition: srv0srv.cc:545
ulint srv_get_task_queue_length(void)
Get count of tasks in the queue.
Definition: srv0srv.cc:3216
ulong srv_max_purge_lag_delay
Max DML user threads delay in micro-seconds.
Definition: trx0purge.cc:74
mysql_pfs_key_t bulk_alloc_thread_key
bool srv_thread_is_stopped(const IB_thread &thread)
Check if given thread is cleaned-up and stopped.
Definition: srv0srv.cc:3265
mysql_pfs_key_t fts_parallel_merge_thread_key
ulong srv_rollback_segments
The number of rollback segments per tablespace.
Definition: srv0srv.cc:163
constexpr size_t SRV_N_LOG_FILES_CLONE_MAX
Definition: srv0srv.h:434
bool srv_enable_undo_encryption()
Enable UNDO tablespaces encryption.
Definition: srv0srv.cc:2591
os_event_t srv_buf_resize_event
The buffer pool resize thread waits on this event.
Definition: srv0srv.cc:789
mysql_pfs_key_t fts_optimize_thread_key
bool srv_redo_log_encrypt
Enable or Disable Encrypt of REDO tablespace.
Definition: srv0srv.cc:241
static void srv_active_wake_master_thread()
Definition: srv0srv.h:996
long innobase_get_open_files_limit()
Returns current value of the "innodb_open_files" configuration variable.
Definition: ha_innodb.cc:5020
Stage instrument information.
Definition: psi_stage_bits.h:74
Definition: srv0srv.h:282
double stime_abs
Definition: srv0srv.h:285
double utime_abs
Definition: srv0srv.h:284
double stime_pct
Definition: srv0srv.h:287
int n_cpu
Definition: srv0srv.h:283
double utime_pct
Definition: srv0srv.h:286
Structure which keeps shared future objects for InnoDB background threads.
Definition: srv0srv.h:165
IB_thread m_recv_writer
Thread writing recovered pages during recovery.
Definition: srv0srv.h:215
IB_thread m_gtid_persister
Thread for GTID persistence.
Definition: srv0srv.h:247
IB_thread * m_purge_workers
Purge workers.
Definition: srv0srv.h:225
IB_thread m_error_monitor
Error monitor thread.
Definition: srv0srv.h:170
IB_thread m_ts_alter_encrypt
The ts_alter_encrypt thread.
Definition: srv0srv.h:209
os_event_t m_shutdown_cleanup_dbg
Used in test scenario to delay threads' cleanup until the pre_dd_shutdown is ended and final plugin's...
Definition: srv0srv.h:254
size_t m_purge_workers_n
Number of purge workers and size of array below.
Definition: srv0srv.h:221
IB_thread m_purge_coordinator
Purge coordinator (also being a worker)
Definition: srv0srv.h:218
IB_thread m_log_flush_notifier
Redo flush notifier thread.
Definition: srv0srv.h:188
IB_thread * m_page_cleaner_workers
Page cleaner workers.
Definition: srv0srv.h:235
IB_thread m_buf_resize
Buffer pool resize thread.
Definition: srv0srv.h:197
IB_thread m_lock_wait_timeout
Thread detecting lock wait timeouts.
Definition: srv0srv.h:203
IB_thread m_backup_log_archiver
Redo log archiver (used by backup).
Definition: srv0srv.h:191
IB_thread m_log_flusher
Redo flusher thread.
Definition: srv0srv.h:182
IB_thread m_fts_optimize
Thread doing optimization for FTS index.
Definition: srv0srv.h:244
IB_thread m_log_files_governor
Redo files governor thread.
Definition: srv0srv.h:173
IB_thread m_log_archiver
Archiver's log archiver (used by Clone).
Definition: srv0srv.h:238
IB_thread m_page_cleaner_coordinator
Page cleaner coordinator (also being a worker).
Definition: srv0srv.h:228
IB_thread m_page_archiver
Archiver's page archiver (used by Clone).
Definition: srv0srv.h:241
IB_thread m_trx_recovery_rollback
Thread doing rollbacks during recovery.
Definition: srv0srv.h:212
IB_thread m_log_write_notifier
Redo write notifier thread.
Definition: srv0srv.h:185
IB_thread m_buf_dump
Buffer pool dump thread.
Definition: srv0srv.h:194
IB_thread m_monitor
Monitor thread (prints info).
Definition: srv0srv.h:167
os_event_t m_master_ready_for_dd_shutdown
When the master thread notices that shutdown has started (by noticing srv_shutdown_state >= SRV_SHUTD...
Definition: srv0srv.h:266
IB_thread m_log_writer
Redo writer thread.
Definition: srv0srv.h:179
IB_thread m_dict_stats
Dict stats background thread.
Definition: srv0srv.h:200
size_t m_page_cleaner_workers_n
Number of page cleaner workers and size of array below.
Definition: srv0srv.h:231
IB_thread m_log_checkpointer
Redo checkpointer thread.
Definition: srv0srv.h:176
IB_thread m_master
The master thread.
Definition: srv0srv.h:206
Status variables to be passed to MySQL.
Definition: srv0srv.h:1125
ulonglong innodb_redo_log_uuid
Redo log UUID.
Definition: srv0srv.h:1165
ulint innodb_buffer_pool_pages_flushed
srv_buf_pool_flushed
Definition: srv0srv.h:1156
ulonglong innodb_redo_log_logical_size
Redo log logical size.
Definition: srv0srv.h:1170
ulint innodb_buffer_pool_pages_latched
Latched pages.
Definition: srv0srv.h:1151
ulint innodb_system_rows_updated
srv_n_system_rows_updated
Definition: srv0srv.h:1201
ulint innodb_sampled_pages_read
Definition: srv0srv.h:1203
ulint innodb_buffer_pool_write_requests
srv_buf_pool_write_requests
Definition: srv0srv.h:1157
ulint innodb_data_written
Data bytes written.
Definition: srv0srv.h:1132
ulint innodb_pages_created
buf_pool->stat.n_pages_created
Definition: srv0srv.h:1182
ulint innodb_buffer_pool_read_ahead
srv_read_ahead
Definition: srv0srv.h:1159
ulint innodb_system_rows_read
srv_n_system_rows_read
Definition: srv0srv.h:1199
bool innodb_redo_log_read_only
Is redo log read-only ?
Definition: srv0srv.h:1164
char innodb_buffer_pool_resize_status[512]
Buf pool resize status.
Definition: srv0srv.h:1138
ulint innodb_num_open_files
fil_n_files_open
Definition: srv0srv.h:1205
int64_t innodb_row_lock_time
srv_n_lock_wait_time / 1000
Definition: srv0srv.h:1188
ulint innodb_data_read
Data bytes read.
Definition: srv0srv.h:1130
ulint innodb_data_pending_reads
Pending reads.
Definition: srv0srv.h:1126
ulint innodb_data_fsyncs
Number of fsyncs so far.
Definition: srv0srv.h:1129
ulint innodb_purge_view_trx_id_age
rw_max_trx_no
Definition: srv0srv.h:1217
ulint innodb_buffer_pool_bytes_dirty
File bytes modified.
Definition: srv0srv.h:1147
ulint innodb_buffer_pool_pages_free
Free pages.
Definition: srv0srv.h:1149
char innodb_redo_log_resize_status[512]
Redo log resize status.
Definition: srv0srv.h:1163
ulint innodb_dblwr_pages_written
srv_dblwr_pages_written
Definition: srv0srv.h:1161
ulint innodb_ahi_drop_lookups
number of adaptive hash index lookups when freeing file pages
Definition: srv0srv.h:1219
ulint innodb_buffer_pool_read_ahead_evicted
srv_read_ahead evicted
Definition: srv0srv.h:1160
ulint innodb_dblwr_writes
srv_dblwr_writes
Definition: srv0srv.h:1162
ulint innodb_buffer_pool_read_ahead_rnd
srv_read_ahead_rnd
Definition: srv0srv.h:1158
ulint innodb_data_pending_fsyncs
Pending fsyncs.
Definition: srv0srv.h:1128
ulint innodb_rows_deleted
srv_n_rows_deleted
Definition: srv0srv.h:1198
ulint innodb_data_reads
I/O read requests.
Definition: srv0srv.h:1133
ulint innodb_row_lock_time_avg
srv_n_lock_wait_time / 1000 / srv_n_lock_wait_count
Definition: srv0srv.h:1190
ulint innodb_page_size
UNIV_PAGE_SIZE.
Definition: srv0srv.h:1181
char innodb_buffer_pool_load_status[OS_FILE_MAX_PATH+128]
Buf pool load status.
Definition: srv0srv.h:1137
bool innodb_redo_log_enabled
srv_redo_log
Definition: srv0srv.h:1185
ulint innodb_undo_tablespaces_implicit
number of undo tablespaces innoDB created implicitly.
Definition: srv0srv.h:1209
ulint innodb_rows_inserted
srv_n_rows_inserted
Definition: srv0srv.h:1196
ulint innodb_buffer_pool_reads
srv_buf_pool_reads
Definition: srv0srv.h:1154
ulint innodb_undo_tablespaces_active
number of active undo tablespaces
Definition: srv0srv.h:1213
ulint innodb_data_writes
I/O write requests.
Definition: srv0srv.h:1131
ulint innodb_purge_trx_id_age
rw_max_trx_no - purged trx_no
Definition: srv0srv.h:1216
ulint innodb_buffer_pool_pages_dirty
Dirty data pages.
Definition: srv0srv.h:1146
ulint innodb_log_writes
srv_log_writes
Definition: srv0srv.h:1176
lsn_t innodb_os_log_written
srv_os_log_written
Definition: srv0srv.h:1177
ulonglong innodb_redo_log_capacity_resized
Redo log capacity after the last finished redo resize.
Definition: srv0srv.h:1172
ulonglong innodb_redo_log_current_lsn
Redo log current LSN.
Definition: srv0srv.h:1167
ulint innodb_rows_updated
srv_n_rows_updated
Definition: srv0srv.h:1197
ulint innodb_os_log_fsyncs
log_total_flushes()
Definition: srv0srv.h:1178
uint32_t innodb_buffer_pool_resize_status_progress
Buf pool resize status progess.
Definition: srv0srv.h:1141
ulint innodb_os_log_pending_writes
srv_os_log_pending_writes
Definition: srv0srv.h:1179
ulint innodb_buffer_pool_pages_total
Buffer pool size.
Definition: srv0srv.h:1143
ulint innodb_undo_tablespaces_total
total number of undo tablespaces innoDB is tracking.
Definition: srv0srv.h:1207
ulint innodb_buffer_pool_pages_misc
Miscellaneous pages.
Definition: srv0srv.h:1148
ulint innodb_row_lock_waits
srv_n_lock_wait_count
Definition: srv0srv.h:1186
ulint innodb_buffer_pool_pages_data
Data pages.
Definition: srv0srv.h:1144
ulint innodb_data_pending_writes
Pending writes.
Definition: srv0srv.h:1127
ulint innodb_buffer_pool_wait_free
srv_buf_pool_wait_free
Definition: srv0srv.h:1155
ulonglong innodb_redo_log_checkpoint_lsn
Redo log checkpoint LSN.
Definition: srv0srv.h:1166
ulint innodb_buffer_pool_bytes_data
File bytes used.
Definition: srv0srv.h:1145
uint32_t innodb_buffer_pool_resize_status_code
Buf pool resize status code.
Definition: srv0srv.h:1140
ulint innodb_buffer_pool_read_requests
buf_pool->stat.n_page_gets
Definition: srv0srv.h:1153
ulint innodb_log_write_requests
srv_log_write_requests
Definition: srv0srv.h:1175
ulonglong innodb_redo_log_physical_size
Redo log physical size.
Definition: srv0srv.h:1171
ulonglong innodb_redo_log_flushed_to_disk_lsn
Redo log flushed to disk LSN.
Definition: srv0srv.h:1169
ulint innodb_os_log_pending_fsyncs
log_pending_flushes()
Definition: srv0srv.h:1180
ulint innodb_pages_written
buf_pool->stat.n_pages_written
Definition: srv0srv.h:1184
ulint innodb_row_lock_current_waits
srv_n_lock_wait_current_count
Definition: srv0srv.h:1187
ulint innodb_undo_tablespaces_explicit
number of undo tablespaces the dba created explicitly.
Definition: srv0srv.h:1211
ulint innodb_pages_read
buf_pool->stat.n_pages_read
Definition: srv0srv.h:1183
ulint innodb_log_waits
srv_log_waits
Definition: srv0srv.h:1174
char innodb_buffer_pool_dump_status[OS_FILE_MAX_PATH+128]
Buf pool dump status.
Definition: srv0srv.h:1135
ulint innodb_sampled_pages_skipped
Definition: srv0srv.h:1204
ulint innodb_system_rows_inserted
srv_n_system_rows_inserted
Definition: srv0srv.h:1200
ulint innodb_truncated_status_writes
srv_truncated_status_writes
Definition: srv0srv.h:1206
ulint innodb_row_lock_time_max
srv_n_lock_max_wait_time / 1000
Definition: srv0srv.h:1193
ulint innodb_rows_read
srv_n_rows_read
Definition: srv0srv.h:1195
ulint innodb_system_rows_deleted
srv_n_system_rows_deleted
Definition: srv0srv.h:1202
Mini-transaction handle and buffer.
Definition: mtr0mtr.h:177
Define for performance schema registration key.
Definition: sync0sync.h:51
InnoDB condition variable.
Definition: os0event.cc:63
Definition: que0que.h:242
Thread slot in the thread table.
Definition: srv0srv.h:1227
bool in_use
true if this slot is in use.
Definition: srv0srv.h:1232
bool suspended
true if the thread is waiting for the event of this slot.
Definition: srv0srv.h:1235
std::chrono::steady_clock::duration wait_timeout
Wait time that if exceeded the thread will be timed out.
Definition: srv0srv.h:1253
que_thr_t * thr
Suspended query thread (only used for user threads).
Definition: srv0srv.h:1259
std::chrono::steady_clock::time_point suspend_time
Time when the thread was suspended.
Definition: srv0srv.h:1239
uint64_t reservation_no
Stores the current value of lock_wait_table_reservations, when lock_wait_table_reserve_slot is called...
Definition: srv0srv.h:1249
os_event_t event
Event used in suspending the thread when it has nothing to do.
Definition: srv0srv.h:1256
srv_thread_type type
Thread type: user, utility etc.
Definition: srv0srv.h:1229
ulint_ctr_64_t n_rows_inserted
Number of rows inserted.
Definition: srv0srv.h:142
ulint_ctr_64_t n_system_rows_inserted
Number of system rows inserted.
Definition: srv0srv.h:154
ulint_ctr_1_t buf_pool_reads
Number of buffer pool reads that led to the reading of a disk page.
Definition: srv0srv.h:118
ulint_ctr_1_t data_read
Number of data read in total (in bytes)
Definition: srv0srv.h:121
ulint_ctr_1_t log_write_requests
Number of the log write requests done.
Definition: srv0srv.h:82
ulint_ctr_1_t data_written
Count the amount of data written in total (in bytes)
Definition: srv0srv.h:79
ib_counter_t< lint, 1, single_indexer_t > lint_ctr_1_t
Definition: srv0srv.h:75
ulint_ctr_64_t n_rows_deleted
Number of rows deleted.
Definition: srv0srv.h:139
ulint_ctr_1_t dblwr_writes
Count the number of times the doublewrite buffer was flushed.
Definition: srv0srv.h:98
lint_ctr_1_t n_lock_wait_current_count
Number of threads currently waiting on database locks.
Definition: srv0srv.h:130
ulint_ctr_64_t n_system_rows_read
Number of system rows read.
Definition: srv0srv.h:145
ulint_ctr_64_t n_sampled_pages_read
Number of sampled pages read.
Definition: srv0srv.h:157
ulint_ctr_1_t buf_pool_write_requests
Store the number of write requests issued.
Definition: srv0srv.h:105
ulint_ctr_1_t buf_pool_flushed
Count the number of pages that were written from buffer pool to the disk.
Definition: srv0srv.h:114
ulint_ctr_64_t n_rows_read
Number of rows read.
Definition: srv0srv.h:133
ulint_ctr_64_t n_system_rows_deleted
Number of system rows deleted.
Definition: srv0srv.h:151
lint_ctr_1_t os_log_pending_writes
Number of writes being done to the log files.
Definition: srv0srv.h:91
ulint_ctr_1_t buf_pool_wait_free
Store the number of times when we had to wait for a free page in the buffer pool.
Definition: srv0srv.h:110
int64_ctr_1_t n_lock_wait_time
Wait time of database locks.
Definition: srv0srv.h:124
lsn_ctr_1_t os_log_written
Amount of data written to the log files in bytes.
Definition: srv0srv.h:88
ib_counter_t< int64_t, 1, single_indexer_t > int64_ctr_1_t
Definition: srv0srv.h:76
ulint_ctr_64_t n_rows_updated
Number of rows updated.
Definition: srv0srv.h:136
ulint_ctr_64_t n_sampled_pages_skipped
Number of sampled pages skipped.
Definition: srv0srv.h:160
ib_counter_t< ulint, 64 > ulint_ctr_64_t
Definition: srv0srv.h:72
ulint_ctr_1_t n_lock_wait_count
Number of database lock waits.
Definition: srv0srv.h:127
ulint_ctr_1_t dblwr_pages_written
Store the number of pages that have been flushed to the doublewrite buffer.
Definition: srv0srv.h:102
ib_counter_t< ulint, 1, single_indexer_t > ulint_ctr_1_t
Definition: srv0srv.h:74
ulint_ctr_64_t n_system_rows_updated
Number of system rows updated.
Definition: srv0srv.h:148
ib_counter_t< lsn_t, 1, single_indexer_t > lsn_ctr_1_t
Definition: srv0srv.h:73
ulint_ctr_1_t log_waits
We increase this counter, when we don't have enough space in the log buffer and have to flush it.
Definition: srv0srv.h:95
ulint_ctr_1_t log_writes
Number of physical writes to the log performed.
Definition: srv0srv.h:85
double seconds()
Definition: task.cc:310
Transaction system global type definitions.
Version control for database, common definitions, and include files.
unsigned long int ulint
Definition: univ.i:406
int n
Definition: xcom_base.cc:509