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srv0mon.cc
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/*****************************************************************************
Copyright (c) 2010, 2016, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2012, Facebook Inc.
Copyright (c) 2013, 2020, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file srv/srv0mon.cc
Database monitor counter interfaces
Created 12/9/2009 Jimmy Yang
*******************************************************/
#include "buf0buf.h"
#include "dict0mem.h"
#include "ibuf0ibuf.h"
#include "lock0lock.h"
#include "mach0data.h"
#include "os0file.h"
#include "srv0mon.h"
#include "srv0srv.h"
#include "trx0rseg.h"
#include "trx0sys.h"
/* Macro to standardize the counter names for counters in the
"monitor_buf_page" module as they have very structured defines */
#define MONITOR_BUF_PAGE(name, description, code, op, op_code) \
{"buffer_page_" op "_" name, "buffer_page_io", \
"Number of " description " Pages " op, \
MONITOR_GROUP_MODULE, MONITOR_DEFAULT_START, \
MONITOR_##code##_##op_code}
#define MONITOR_BUF_PAGE_READ(name, description, code) \
MONITOR_BUF_PAGE(name, description, code, "read", PAGE_READ)
#define MONITOR_BUF_PAGE_WRITTEN(name, description, code) \
MONITOR_BUF_PAGE(name, description, code, "written", PAGE_WRITTEN)
/** This array defines basic static information of monitor counters,
including each monitor's name, module it belongs to, a short
description and its property/type and corresponding monitor_id.
Please note: If you add a monitor here, please add its corresponding
monitor_id to "enum monitor_id_value" structure in srv0mon.h file. */
static monitor_info_t innodb_counter_info[] =
{
/* A dummy item to mark the module start, this is
to accomodate the default value (0) set for the
global variables with the control system. */
{"module_start", "module_start", "module_start",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_DEFAULT_START},
/* ========== Counters for Server Metadata ========== */
{"module_metadata", "metadata", "Server Metadata",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_METADATA},
{"metadata_table_handles_opened", "metadata",
"Number of table handles opened",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLE_OPEN},
{"metadata_table_handles_closed", "metadata",
"Number of table handles closed",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLE_CLOSE},
{"metadata_table_reference_count", "metadata",
"Table reference counter",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLE_REFERENCE},
/* ========== Counters for Lock Module ========== */
{"module_lock", "lock", "Lock Module",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_LOCK},
{"lock_deadlocks", "lock", "Number of deadlocks",
MONITOR_DEFAULT_ON,
MONITOR_DEFAULT_START, MONITOR_DEADLOCK},
{"lock_timeouts", "lock", "Number of lock timeouts",
MONITOR_DEFAULT_ON,
MONITOR_DEFAULT_START, MONITOR_TIMEOUT},
{"lock_rec_lock_waits", "lock",
"Number of times enqueued into record lock wait queue",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LOCKREC_WAIT},
{"lock_table_lock_waits", "lock",
"Number of times enqueued into table lock wait queue",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLELOCK_WAIT},
{"lock_rec_lock_requests", "lock",
"Number of record locks requested",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_RECLOCK_REQ},
{"lock_rec_lock_created", "lock", "Number of record locks created",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_RECLOCK_CREATED},
{"lock_rec_lock_removed", "lock",
"Number of record locks removed from the lock queue",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_RECLOCK_REMOVED},
{"lock_rec_locks", "lock",
"Current number of record locks on tables",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_RECLOCK},
{"lock_table_lock_created", "lock", "Number of table locks created",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLELOCK_CREATED},
{"lock_table_lock_removed", "lock",
"Number of table locks removed from the lock queue",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TABLELOCK_REMOVED},
{"lock_table_locks", "lock",
"Current number of table locks on tables",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_TABLELOCK},
{"lock_row_lock_current_waits", "lock",
"Number of row locks currently being waited for"
" (innodb_row_lock_current_waits)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_ROW_LOCK_CURRENT_WAIT},
{"lock_row_lock_time", "lock",
"Time spent in acquiring row locks, in milliseconds"
" (innodb_row_lock_time)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOCK_WAIT_TIME},
{"lock_row_lock_time_max", "lock",
"The maximum time to acquire a row lock, in milliseconds"
" (innodb_row_lock_time_max)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOCK_MAX_WAIT_TIME},
{"lock_row_lock_waits", "lock",
"Number of times a row lock had to be waited for"
" (innodb_row_lock_waits)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_ROW_LOCK_WAIT},
{"lock_row_lock_time_avg", "lock",
"The average time to acquire a row lock, in milliseconds"
" (innodb_row_lock_time_avg)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOCK_AVG_WAIT_TIME},
/* ========== Counters for Buffer Manager and I/O ========== */
{"module_buffer", "buffer", "Buffer Manager Module",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_BUFFER},
{"buffer_pool_size", "server",
"Server buffer pool size (all buffer pools) in bytes",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUFFER_POOL_SIZE},
{"buffer_pool_reads", "buffer",
"Number of reads directly from disk (innodb_buffer_pool_reads)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_READS},
{"buffer_pool_read_requests", "buffer",
"Number of logical read requests (innodb_buffer_pool_read_requests)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_READ_REQUESTS},
{"buffer_pool_write_requests", "buffer",
"Number of write requests (innodb_buffer_pool_write_requests)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_WRITE_REQUEST},
{"buffer_pool_wait_free", "buffer",
"Number of times waited for free buffer"
" (innodb_buffer_pool_wait_free)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_WAIT_FREE},
{"buffer_pool_read_ahead", "buffer",
"Number of pages read as read ahead (innodb_buffer_pool_read_ahead)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_READ_AHEAD},
{"buffer_pool_read_ahead_evicted", "buffer",
"Read-ahead pages evicted without being accessed"
" (innodb_buffer_pool_read_ahead_evicted)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_READ_AHEAD_EVICTED},
{"buffer_pool_pages_total", "buffer",
"Total buffer pool size in pages (innodb_buffer_pool_pages_total)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_PAGE_TOTAL},
{"buffer_pool_pages_misc", "buffer",
"Buffer pages for misc use such as row locks or the adaptive"
" hash index (innodb_buffer_pool_pages_misc)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_PAGE_MISC},
{"buffer_pool_pages_data", "buffer",
"Buffer pages containing data (innodb_buffer_pool_pages_data)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_PAGES_DATA},
{"buffer_pool_bytes_data", "buffer",
"Buffer bytes containing data (innodb_buffer_pool_bytes_data)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_BYTES_DATA},
{"buffer_pool_pages_dirty", "buffer",
"Buffer pages currently dirty (innodb_buffer_pool_pages_dirty)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_PAGES_DIRTY},
{"buffer_pool_bytes_dirty", "buffer",
"Buffer bytes currently dirty (innodb_buffer_pool_bytes_dirty)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_BYTES_DIRTY},
{"buffer_pool_pages_free", "buffer",
"Buffer pages currently free (innodb_buffer_pool_pages_free)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_POOL_PAGES_FREE},
{"buffer_pages_created", "buffer",
"Number of pages created (innodb_pages_created)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGE_CREATED},
{"buffer_pages_written", "buffer",
"Number of pages written (innodb_pages_written)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGES_WRITTEN},
{"buffer_index_pages_written", "buffer",
"Number of index pages written (innodb_index_pages_written)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_INDEX_PAGES_WRITTEN},
{"buffer_non_index_pages_written", "buffer",
"Number of non index pages written (innodb_non_index_pages_written)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_NON_INDEX_PAGES_WRITTEN},
{"buffer_pages_read", "buffer",
"Number of pages read (innodb_pages_read)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGES_READ},
{"buffer_index_sec_rec_cluster_reads", "buffer",
"Number of secondary record reads triggered cluster read",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_INDEX_SEC_REC_CLUSTER_READS},
{"buffer_index_sec_rec_cluster_reads_avoided", "buffer",
"Number of secondary record reads avoided triggering cluster read",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_INDEX_SEC_REC_CLUSTER_READS_AVOIDED},
{"buffer_data_reads", "buffer",
"Amount of data read in bytes (innodb_data_reads)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BYTE_READ},
{"buffer_data_written", "buffer",
"Amount of data written in bytes (innodb_data_written)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_BYTE_WRITTEN},
/* Cumulative counter for scanning in flush batches */
{"buffer_flush_batch_scanned", "buffer",
"Total pages scanned as part of flush batch",
MONITOR_SET_OWNER,
MONITOR_FLUSH_BATCH_SCANNED_NUM_CALL,
MONITOR_FLUSH_BATCH_SCANNED},
{"buffer_flush_batch_num_scan", "buffer",
"Number of times buffer flush list flush is called",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BATCH_SCANNED,
MONITOR_FLUSH_BATCH_SCANNED_NUM_CALL},
{"buffer_flush_batch_scanned_per_call", "buffer",
"Pages scanned per flush batch scan",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BATCH_SCANNED,
MONITOR_FLUSH_BATCH_SCANNED_PER_CALL},
/* Cumulative counter for pages flushed in flush batches */
{"buffer_flush_batch_total_pages", "buffer",
"Total pages flushed as part of flush batch",
MONITOR_SET_OWNER, MONITOR_FLUSH_BATCH_COUNT,
MONITOR_FLUSH_BATCH_TOTAL_PAGE},
{"buffer_flush_batches", "buffer",
"Number of flush batches",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BATCH_TOTAL_PAGE,
MONITOR_FLUSH_BATCH_COUNT},
{"buffer_flush_batch_pages", "buffer",
"Pages queued as a flush batch",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BATCH_TOTAL_PAGE,
MONITOR_FLUSH_BATCH_PAGES},
/* Cumulative counter for flush batches because of neighbor */
{"buffer_flush_neighbor_total_pages", "buffer",
"Total neighbors flushed as part of neighbor flush",
MONITOR_SET_OWNER, MONITOR_FLUSH_NEIGHBOR_COUNT,
MONITOR_FLUSH_NEIGHBOR_TOTAL_PAGE},
{"buffer_flush_neighbor", "buffer",
"Number of times neighbors flushing is invoked",
MONITOR_SET_MEMBER, MONITOR_FLUSH_NEIGHBOR_TOTAL_PAGE,
MONITOR_FLUSH_NEIGHBOR_COUNT},
{"buffer_flush_neighbor_pages", "buffer",
"Pages queued as a neighbor batch",
MONITOR_SET_MEMBER, MONITOR_FLUSH_NEIGHBOR_TOTAL_PAGE,
MONITOR_FLUSH_NEIGHBOR_PAGES},
{"buffer_flush_n_to_flush_requested", "buffer",
"Number of pages requested for flushing.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_N_TO_FLUSH_REQUESTED},
{"buffer_flush_n_to_flush_by_age", "buffer",
"Number of pages target by LSN Age for flushing.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_N_TO_FLUSH_BY_AGE},
{"buffer_flush_adaptive_avg_time_slot", "buffer",
"Avg time (ms) spent for adaptive flushing recently per slot.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_ADAPTIVE_AVG_TIME_SLOT},
{"buffer_LRU_batch_flush_avg_time_slot", "buffer",
"Avg time (ms) spent for LRU batch flushing recently per slot.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_BATCH_FLUSH_AVG_TIME_SLOT},
{"buffer_flush_adaptive_avg_time_thread", "buffer",
"Avg time (ms) spent for adaptive flushing recently per thread.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_ADAPTIVE_AVG_TIME_THREAD},
{"buffer_LRU_batch_flush_avg_time_thread", "buffer",
"Avg time (ms) spent for LRU batch flushing recently per thread.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_BATCH_FLUSH_AVG_TIME_THREAD},
{"buffer_flush_adaptive_avg_time_est", "buffer",
"Estimated time (ms) spent for adaptive flushing recently.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_ADAPTIVE_AVG_TIME_EST},
{"buffer_LRU_batch_flush_avg_time_est", "buffer",
"Estimated time (ms) spent for LRU batch flushing recently.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_BATCH_FLUSH_AVG_TIME_EST},
{"buffer_flush_avg_time", "buffer",
"Avg time (ms) spent for flushing recently.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_AVG_TIME},
{"buffer_flush_adaptive_avg_pass", "buffer",
"Number of adaptive flushes passed during the recent Avg period.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_ADAPTIVE_AVG_PASS},
{"buffer_LRU_batch_flush_avg_pass", "buffer",
"Number of LRU batch flushes passed during the recent Avg period.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_BATCH_FLUSH_AVG_PASS},
{"buffer_flush_avg_pass", "buffer",
"Number of flushes passed during the recent Avg period.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_AVG_PASS},
{"buffer_LRU_get_free_loops", "buffer",
"Total loops in LRU get free.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_GET_FREE_LOOPS},
{"buffer_LRU_get_free_waits", "buffer",
"Total sleep waits in LRU get free.",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_GET_FREE_WAITS},
{"buffer_flush_avg_page_rate", "buffer",
"Average number of pages at which flushing is happening",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_AVG_PAGE_RATE},
{"buffer_flush_lsn_avg_rate", "buffer",
"Average redo generation rate",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_LSN_AVG_RATE},
{"buffer_flush_pct_for_dirty", "buffer",
"Percent of IO capacity used to avoid max dirty page limit",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_PCT_FOR_DIRTY},
{"buffer_flush_pct_for_lsn", "buffer",
"Percent of IO capacity used to avoid reusable redo space limit",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_PCT_FOR_LSN},
{"buffer_flush_sync_waits", "buffer",
"Number of times a wait happens due to sync flushing",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_FLUSH_SYNC_WAITS},
/* Cumulative counter for flush batches for adaptive flushing */
{"buffer_flush_adaptive_total_pages", "buffer",
"Total pages flushed as part of adaptive flushing",
MONITOR_SET_OWNER, MONITOR_FLUSH_ADAPTIVE_COUNT,
MONITOR_FLUSH_ADAPTIVE_TOTAL_PAGE},
{"buffer_flush_adaptive", "buffer",
"Number of adaptive batches",
MONITOR_SET_MEMBER, MONITOR_FLUSH_ADAPTIVE_TOTAL_PAGE,
MONITOR_FLUSH_ADAPTIVE_COUNT},
{"buffer_flush_adaptive_pages", "buffer",
"Pages queued as an adaptive batch",
MONITOR_SET_MEMBER, MONITOR_FLUSH_ADAPTIVE_TOTAL_PAGE,
MONITOR_FLUSH_ADAPTIVE_PAGES},
/* Cumulative counter for flush batches because of sync */
{"buffer_flush_sync_total_pages", "buffer",
"Total pages flushed as part of sync batches",
MONITOR_SET_OWNER, MONITOR_FLUSH_SYNC_COUNT,
MONITOR_FLUSH_SYNC_TOTAL_PAGE},
{"buffer_flush_sync", "buffer",
"Number of sync batches",
MONITOR_SET_MEMBER, MONITOR_FLUSH_SYNC_TOTAL_PAGE,
MONITOR_FLUSH_SYNC_COUNT},
{"buffer_flush_sync_pages", "buffer",
"Pages queued as a sync batch",
MONITOR_SET_MEMBER, MONITOR_FLUSH_SYNC_TOTAL_PAGE,
MONITOR_FLUSH_SYNC_PAGES},
/* Cumulative counter for flush batches because of background */
{"buffer_flush_background_total_pages", "buffer",
"Total pages flushed as part of background batches",
MONITOR_SET_OWNER, MONITOR_FLUSH_BACKGROUND_COUNT,
MONITOR_FLUSH_BACKGROUND_TOTAL_PAGE},
{"buffer_flush_background", "buffer",
"Number of background batches",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BACKGROUND_TOTAL_PAGE,
MONITOR_FLUSH_BACKGROUND_COUNT},
{"buffer_flush_background_pages", "buffer",
"Pages queued as a background batch",
MONITOR_SET_MEMBER, MONITOR_FLUSH_BACKGROUND_TOTAL_PAGE,
MONITOR_FLUSH_BACKGROUND_PAGES},
/* Cumulative counter for LRU batch scan */
{"buffer_LRU_batch_scanned", "buffer",
"Total pages scanned as part of LRU batch",
MONITOR_SET_OWNER, MONITOR_LRU_BATCH_SCANNED_NUM_CALL,
MONITOR_LRU_BATCH_SCANNED},
{"buffer_LRU_batch_num_scan", "buffer",
"Number of times LRU batch is called",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_SCANNED,
MONITOR_LRU_BATCH_SCANNED_NUM_CALL},
{"buffer_LRU_batch_scanned_per_call", "buffer",
"Pages scanned per LRU batch call",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_SCANNED,
MONITOR_LRU_BATCH_SCANNED_PER_CALL},
/* Cumulative counter for LRU batch pages flushed */
{"buffer_LRU_batch_flush_total_pages", "buffer",
"Total pages flushed as part of LRU batches",
MONITOR_SET_OWNER, MONITOR_LRU_BATCH_FLUSH_COUNT,
MONITOR_LRU_BATCH_FLUSH_TOTAL_PAGE},
{"buffer_LRU_batches_flush", "buffer",
"Number of LRU batches",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_FLUSH_TOTAL_PAGE,
MONITOR_LRU_BATCH_FLUSH_COUNT},
{"buffer_LRU_batch_flush_pages", "buffer",
"Pages queued as an LRU batch",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_FLUSH_TOTAL_PAGE,
MONITOR_LRU_BATCH_FLUSH_PAGES},
/* Cumulative counter for LRU batch pages flushed */
{"buffer_LRU_batch_evict_total_pages", "buffer",
"Total pages evicted as part of LRU batches",
MONITOR_SET_OWNER, MONITOR_LRU_BATCH_EVICT_COUNT,
MONITOR_LRU_BATCH_EVICT_TOTAL_PAGE},
{"buffer_LRU_batches_evict", "buffer",
"Number of LRU batches",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_EVICT_TOTAL_PAGE,
MONITOR_LRU_BATCH_EVICT_COUNT},
{"buffer_LRU_batch_evict_pages", "buffer",
"Pages queued as an LRU batch",
MONITOR_SET_MEMBER, MONITOR_LRU_BATCH_EVICT_TOTAL_PAGE,
MONITOR_LRU_BATCH_EVICT_PAGES},
/* Cumulative counter for single page LRU scans */
{"buffer_LRU_single_flush_scanned", "buffer",
"Total pages scanned as part of single page LRU flush",
MONITOR_SET_OWNER,
MONITOR_LRU_SINGLE_FLUSH_SCANNED_NUM_CALL,
MONITOR_LRU_SINGLE_FLUSH_SCANNED},
{"buffer_LRU_single_flush_num_scan", "buffer",
"Number of times single page LRU flush is called",
MONITOR_SET_MEMBER, MONITOR_LRU_SINGLE_FLUSH_SCANNED,
MONITOR_LRU_SINGLE_FLUSH_SCANNED_NUM_CALL},
{"buffer_LRU_single_flush_scanned_per_call", "buffer",
"Page scanned per single LRU flush",
MONITOR_SET_MEMBER, MONITOR_LRU_SINGLE_FLUSH_SCANNED,
MONITOR_LRU_SINGLE_FLUSH_SCANNED_PER_CALL},
{"buffer_LRU_single_flush_failure_count", "Buffer",
"Number of times attempt to flush a single page from LRU failed",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_SINGLE_FLUSH_FAILURE_COUNT},
{"buffer_LRU_get_free_search", "Buffer",
"Number of searches performed for a clean page",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_LRU_GET_FREE_SEARCH},
/* Cumulative counter for LRU search scans */
{"buffer_LRU_search_scanned", "buffer",
"Total pages scanned as part of LRU search",
MONITOR_SET_OWNER,
MONITOR_LRU_SEARCH_SCANNED_NUM_CALL,
MONITOR_LRU_SEARCH_SCANNED},
{"buffer_LRU_search_num_scan", "buffer",
"Number of times LRU search is performed",
MONITOR_SET_MEMBER, MONITOR_LRU_SEARCH_SCANNED,
MONITOR_LRU_SEARCH_SCANNED_NUM_CALL},
{"buffer_LRU_search_scanned_per_call", "buffer",
"Page scanned per single LRU search",
MONITOR_SET_MEMBER, MONITOR_LRU_SEARCH_SCANNED,
MONITOR_LRU_SEARCH_SCANNED_PER_CALL},
/* Cumulative counter for LRU unzip search scans */
{"buffer_LRU_unzip_search_scanned", "buffer",
"Total pages scanned as part of LRU unzip search",
MONITOR_SET_OWNER,
MONITOR_LRU_UNZIP_SEARCH_SCANNED_NUM_CALL,
MONITOR_LRU_UNZIP_SEARCH_SCANNED},
{"buffer_LRU_unzip_search_num_scan", "buffer",
"Number of times LRU unzip search is performed",
MONITOR_SET_MEMBER, MONITOR_LRU_UNZIP_SEARCH_SCANNED,
MONITOR_LRU_UNZIP_SEARCH_SCANNED_NUM_CALL},
{"buffer_LRU_unzip_search_scanned_per_call", "buffer",
"Page scanned per single LRU unzip search",
MONITOR_SET_MEMBER, MONITOR_LRU_UNZIP_SEARCH_SCANNED,
MONITOR_LRU_UNZIP_SEARCH_SCANNED_PER_CALL},
/* ========== Counters for Buffer Page I/O ========== */
{"module_buffer_page", "buffer_page_io", "Buffer Page I/O Module",
static_cast<monitor_type_t>(
MONITOR_MODULE | MONITOR_GROUP_MODULE),
MONITOR_DEFAULT_START, MONITOR_MODULE_BUF_PAGE},
MONITOR_BUF_PAGE_READ("index_leaf","Index Leaf", INDEX_LEAF),
MONITOR_BUF_PAGE_READ("index_non_leaf","Index Non-leaf",
INDEX_NON_LEAF),
MONITOR_BUF_PAGE_READ("index_ibuf_leaf", "Insert Buffer Index Leaf",
INDEX_IBUF_LEAF),
MONITOR_BUF_PAGE_READ("index_ibuf_non_leaf",
"Insert Buffer Index Non-Leaf",
INDEX_IBUF_NON_LEAF),
MONITOR_BUF_PAGE_READ("undo_log", "Undo Log", UNDO_LOG),
MONITOR_BUF_PAGE_READ("index_inode", "Index Inode", INODE),
MONITOR_BUF_PAGE_READ("ibuf_free_list", "Insert Buffer Free List",
IBUF_FREELIST),
MONITOR_BUF_PAGE_READ("ibuf_bitmap", "Insert Buffer Bitmap",
IBUF_BITMAP),
MONITOR_BUF_PAGE_READ("system_page", "System", SYSTEM),
MONITOR_BUF_PAGE_READ("trx_system", "Transaction System", TRX_SYSTEM),
MONITOR_BUF_PAGE_READ("fsp_hdr", "File Space Header", FSP_HDR),
MONITOR_BUF_PAGE_READ("xdes", "Extent Descriptor", XDES),
MONITOR_BUF_PAGE_READ("blob", "Uncompressed BLOB", BLOB),
MONITOR_BUF_PAGE_READ("zblob", "First Compressed BLOB", ZBLOB),
MONITOR_BUF_PAGE_READ("zblob2", "Subsequent Compressed BLOB", ZBLOB2),
MONITOR_BUF_PAGE_READ("other", "other/unknown (old version of InnoDB)",
OTHER),
MONITOR_BUF_PAGE_WRITTEN("index_leaf","Index Leaf", INDEX_LEAF),
MONITOR_BUF_PAGE_WRITTEN("index_non_leaf","Index Non-leaf",
INDEX_NON_LEAF),
MONITOR_BUF_PAGE_WRITTEN("index_ibuf_leaf", "Insert Buffer Index Leaf",
INDEX_IBUF_LEAF),
MONITOR_BUF_PAGE_WRITTEN("index_ibuf_non_leaf",
"Insert Buffer Index Non-Leaf",
INDEX_IBUF_NON_LEAF),
MONITOR_BUF_PAGE_WRITTEN("undo_log", "Undo Log", UNDO_LOG),
MONITOR_BUF_PAGE_WRITTEN("index_inode", "Index Inode", INODE),
MONITOR_BUF_PAGE_WRITTEN("ibuf_free_list", "Insert Buffer Free List",
IBUF_FREELIST),
MONITOR_BUF_PAGE_WRITTEN("ibuf_bitmap", "Insert Buffer Bitmap",
IBUF_BITMAP),
MONITOR_BUF_PAGE_WRITTEN("system_page", "System", SYSTEM),
MONITOR_BUF_PAGE_WRITTEN("trx_system", "Transaction System",
TRX_SYSTEM),
MONITOR_BUF_PAGE_WRITTEN("fsp_hdr", "File Space Header", FSP_HDR),
MONITOR_BUF_PAGE_WRITTEN("xdes", "Extent Descriptor", XDES),
MONITOR_BUF_PAGE_WRITTEN("blob", "Uncompressed BLOB", BLOB),
MONITOR_BUF_PAGE_WRITTEN("zblob", "First Compressed BLOB", ZBLOB),
MONITOR_BUF_PAGE_WRITTEN("zblob2", "Subsequent Compressed BLOB",
ZBLOB2),
MONITOR_BUF_PAGE_WRITTEN("other", "other/unknown (old version InnoDB)",
OTHER),
/* ========== Counters for OS level operations ========== */
{"module_os", "os", "OS Level Operation",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_OS},
{"os_data_reads", "os",
"Number of reads initiated (innodb_data_reads)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_FILE_READ},
{"os_data_writes", "os",
"Number of writes initiated (innodb_data_writes)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_FILE_WRITE},
{"os_data_fsyncs", "os",
"Number of fsync() calls (innodb_data_fsyncs)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_FSYNC},
{"os_pending_reads", "os", "Number of reads pending",
MONITOR_DEFAULT_ON,
MONITOR_DEFAULT_START, MONITOR_OS_PENDING_READS},
{"os_pending_writes", "os", "Number of writes pending",
MONITOR_DEFAULT_ON,
MONITOR_DEFAULT_START, MONITOR_OS_PENDING_WRITES},
{"os_log_bytes_written", "os",
"Bytes of log written (innodb_os_log_written)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_LOG_WRITTEN},
{"os_log_fsyncs", "os",
"Number of fsync log writes (innodb_os_log_fsyncs)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_LOG_FSYNC},
{"os_log_pending_fsyncs", "os",
"Number of pending fsync write (innodb_os_log_pending_fsyncs)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_LOG_PENDING_FSYNC},
{"os_log_pending_writes", "os",
"Number of pending log file writes (innodb_os_log_pending_writes)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_OS_LOG_PENDING_WRITES},
/* ========== Counters for Transaction Module ========== */
{"module_trx", "transaction", "Transaction Manager",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_TRX},
{"trx_rw_commits", "transaction",
"Number of read-write transactions committed",
MONITOR_NONE, MONITOR_DEFAULT_START, MONITOR_TRX_RW_COMMIT},
{"trx_ro_commits", "transaction",
"Number of read-only transactions committed",
MONITOR_NONE, MONITOR_DEFAULT_START, MONITOR_TRX_RO_COMMIT},
{"trx_nl_ro_commits", "transaction",
"Number of non-locking auto-commit read-only transactions committed",
MONITOR_NONE, MONITOR_DEFAULT_START, MONITOR_TRX_NL_RO_COMMIT},
{"trx_commits_insert_update", "transaction",
"Number of transactions committed with inserts and updates",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TRX_COMMIT_UNDO},
{"trx_rollbacks", "transaction",
"Number of transactions rolled back",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TRX_ROLLBACK},
{"trx_rollbacks_savepoint", "transaction",
"Number of transactions rolled back to savepoint",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TRX_ROLLBACK_SAVEPOINT},
{"trx_active_transactions", "transaction",
"Number of active transactions",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_TRX_ACTIVE},
{"trx_rseg_history_len", "transaction",
"Length of the TRX_RSEG_HISTORY list",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_RSEG_HISTORY_LEN},
{"trx_undo_slots_used", "transaction", "Number of undo slots used",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_UNDO_SLOT_USED},
{"trx_undo_slots_cached", "transaction",
"Number of undo slots cached",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_UNDO_SLOT_CACHED},
{"trx_rseg_current_size", "transaction",
"Current rollback segment size in pages",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_RSEG_CUR_SIZE},
/* ========== Counters for Purge Module ========== */
{"module_purge", "purge", "Purge Module",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_PURGE},
{"purge_del_mark_records", "purge",
"Number of delete-marked rows purged",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_N_DEL_ROW_PURGE},
{"purge_upd_exist_or_extern_records", "purge",
"Number of purges on updates of existing records and"
" updates on delete marked record with externally stored field",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_N_UPD_EXIST_EXTERN},
{"purge_invoked", "purge",
"Number of times purge was invoked",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PURGE_INVOKED},
{"purge_undo_log_pages", "purge",
"Number of undo log pages handled by the purge",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PURGE_N_PAGE_HANDLED},
{"purge_dml_delay_usec", "purge",
"Microseconds DML to be delayed due to purge lagging",
MONITOR_DISPLAY_CURRENT,
MONITOR_DEFAULT_START, MONITOR_DML_PURGE_DELAY},
{"purge_stop_count", "purge",
"Number of times purge was stopped",
MONITOR_DISPLAY_CURRENT,
MONITOR_DEFAULT_START, MONITOR_PURGE_STOP_COUNT},
{"purge_resume_count", "purge",
"Number of times purge was resumed",
MONITOR_DISPLAY_CURRENT,
MONITOR_DEFAULT_START, MONITOR_PURGE_RESUME_COUNT},
/* ========== Counters for Recovery Module ========== */
{"module_log", "recovery", "Recovery Module",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_RECOVERY},
{"log_checkpoints", "recovery", "Number of checkpoints",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_NUM_CHECKPOINT},
{"log_lsn_last_flush", "recovery", "LSN of Last flush",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_LSN_FLUSHDISK},
{"log_lsn_last_checkpoint", "recovery", "LSN at last checkpoint",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_LSN_CHECKPOINT},
{"log_lsn_current", "recovery", "Current LSN value",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_LSN_CURRENT},
{"log_lsn_checkpoint_age", "recovery",
"Current LSN value minus LSN at last checkpoint",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_LSN_CHECKPOINT_AGE},
{"log_lsn_buf_pool_oldest", "recovery",
"The oldest modified block LSN in the buffer pool",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_BUF_OLDEST_LSN},
{"log_max_modified_age_async", "recovery",
"Maximum LSN difference; when exceeded, start asynchronous preflush",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_MAX_AGE_ASYNC},
{"log_max_modified_age_sync", "recovery",
"Maximum LSN difference; when exceeded, start synchronous preflush",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_OVLD_MAX_AGE_SYNC},
{"log_pending_log_flushes", "recovery", "Pending log flushes",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_PENDING_LOG_FLUSH},
{"log_pending_checkpoint_writes", "recovery", "Pending checkpoints",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_PENDING_CHECKPOINT_WRITE},
{"log_num_log_io", "recovery", "Number of log I/Os",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DISPLAY_CURRENT),
MONITOR_DEFAULT_START, MONITOR_LOG_IO},
{"log_waits", "recovery",
"Number of log waits due to small log buffer (innodb_log_waits)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOG_WAITS},
{"log_write_requests", "recovery",
"Number of log write requests (innodb_log_write_requests)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOG_WRITE_REQUEST},
{"log_writes", "recovery",
"Number of log writes (innodb_log_writes)",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOG_WRITES},
{"log_padded", "recovery",
"Bytes of log padded for log write ahead",
static_cast<monitor_type_t>(
MONITOR_EXISTING | MONITOR_DEFAULT_ON),
MONITOR_DEFAULT_START, MONITOR_OVLD_LOG_PADDED},
/* ========== Counters for Page Compression ========== */
{"module_compress", "compression", "Page Compression Info",
MONITOR_MODULE,
MONITOR_DEFAULT_START, MONITOR_MODULE_PAGE},
{"compress_pages_compressed", "compression",
"Number of pages compressed", MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PAGE_COMPRESS},
{"compress_pages_decompressed", "compression",
"Number of pages decompressed",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PAGE_DECOMPRESS},
{"compression_pad_increments", "compression",
"Number of times padding is incremented to avoid compression failures",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PAD_INCREMENTS},
{"compression_pad_decrements", "compression",
"Number of times padding is decremented due to good compressibility",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_PAD_DECREMENTS},
{"compress_saved", "compression",
"Number of bytes saved by page compression",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGE_COMPRESS_SAVED},
{"compress_pages_page_compressed", "compression",
"Number of pages compressed by page compression",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGES_PAGE_COMPRESSED},
{"compress_page_compressed_trim_op", "compression",
"Number of TRIM operation performed by page compression",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGE_COMPRESSED_TRIM_OP},
{"compress_pages_page_decompressed", "compression",
"Number of pages decompressed by page compression",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGES_PAGE_DECOMPRESSED},
{"compress_pages_page_compression_error", "compression",
"Number of page compression errors",
MONITOR_NONE,
MONITOR_DEFAULT_START, MONITOR_OVLD_PAGES_PAGE_COMPRESSION_ERROR},