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112 lines
7.8 KiB
SQL
112 lines
7.8 KiB
SQL
-- Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; version 2 of the License.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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-- View: metrics
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--
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-- Creates a union of the following information:
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--
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-- * information_schema.GLOBAL_STATUS
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-- * information_schema.INNODB_METRICS
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-- * Performance Schema global memory usage information
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-- * Current time
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--
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-- This is the same as the metrics view with the exception that the global status is taken from information_schema.GLOBAL_STATUS instead of
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-- from the Peformance Schema. Use this view if one of the following conditions are fulfilled:
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--
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-- * The MySQL version is 5.6 or 5.7.0-5.7.5
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-- * In 5.7.6 and later if show_compatibility_56 is ON. See also https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_show_compatibility_56
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--
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-- In MySQL 5.7.6 and later the view will generate one warning:
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-- mysql> SHOW WARNINGS;
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-- +---------+------+-----------------------------------------------------------------------------------------------------------------------------------------------+
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-- | Level | Code | Message |
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-- +---------+------+-----------------------------------------------------------------------------------------------------------------------------------------------+
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-- | Warning | 1287 | 'INFORMATION_SCHEMA.GLOBAL_STATUS' is deprecated and will be removed in a future release. Please use performance_schema.global_status instead |
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-- +---------+------+-----------------------------------------------------------------------------------------------------------------------------------------------+
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-- 1 row in set (0.00 sec)
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--
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-- For view has the following columns:
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--
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-- * Variable_name: The name of the variable
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-- * Variable_value: The value of the variable
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-- * Type: The type of the variable. This will depend on the source, e.g. Global Status, InnoDB Metrics - ..., etc.
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-- * Enabled: Whether the variable is enabled or not. Possible values are 'YES', 'NO', 'PARTIAL'.
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-- PARTIAL is currently only supported for the memory usage variables and means some but not all of the memory/% instruments
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-- are enabled.
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--
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-- mysql> SELECT * FROM metrics;
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-- +-----------------------------------------------+-------------------------...+--------------------------------------+---------+
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-- | Variable_name | Variable_value ...| Type | Enabled |
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-- +-----------------------------------------------+-------------------------...+--------------------------------------+---------+
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-- | aborted_clients | 0 ...| Global Status | YES |
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-- | aborted_connects | 0 ...| Global Status | YES |
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-- | binlog_cache_disk_use | 0 ...| Global Status | YES |
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-- | binlog_cache_use | 0 ...| Global Status | YES |
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-- | binlog_stmt_cache_disk_use | 0 ...| Global Status | YES |
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-- | binlog_stmt_cache_use | 0 ...| Global Status | YES |
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-- | bytes_received | 217081 ...| Global Status | YES |
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-- | bytes_sent | 27257 ...| Global Status | YES |
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-- ...
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-- | innodb_rwlock_x_os_waits | 0 ...| InnoDB Metrics - server | YES |
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-- | innodb_rwlock_x_spin_rounds | 2723 ...| InnoDB Metrics - server | YES |
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-- | innodb_rwlock_x_spin_waits | 1 ...| InnoDB Metrics - server | YES |
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-- | trx_active_transactions | 0 ...| InnoDB Metrics - transaction | NO |
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-- ...
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-- | trx_rseg_current_size | 0 ...| InnoDB Metrics - transaction | NO |
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-- | trx_rseg_history_len | 4 ...| InnoDB Metrics - transaction | YES |
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-- | trx_rw_commits | 0 ...| InnoDB Metrics - transaction | NO |
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-- | trx_undo_slots_cached | 0 ...| InnoDB Metrics - transaction | NO |
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-- | trx_undo_slots_used | 0 ...| InnoDB Metrics - transaction | NO |
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-- | NOW() | 2015-05-31 13:27:50.382 ...| System Time | YES |
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-- | UNIX_TIMESTAMP() | 1433042870.382 ...| System Time | YES |
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-- +-----------------------------------------------+-------------------------...+--------------------------------------+---------+
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-- 565 rows in set, 1 warning (0.02 sec)
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CREATE OR REPLACE
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ALGORITHM = TEMPTABLE
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DEFINER = 'mariadb.sys'@'localhost'
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SQL SECURITY INVOKER
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VIEW metrics (
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Variable_name,
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Variable_value,
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Type,
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Enabled
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) AS
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(
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SELECT LOWER(VARIABLE_NAME) AS Variable_name, VARIABLE_VALUE AS Variable_value, 'Global Status' AS Type, 'YES' AS Enabled
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FROM information_schema.GLOBAL_STATUS
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) UNION ALL (
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SELECT NAME AS Variable_name, COUNT AS Variable_value,
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CONCAT('InnoDB Metrics - ', SUBSYSTEM) AS Type,
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IF(STATUS = 'enabled', 'YES', 'NO') AS Enabled
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FROM information_schema.INNODB_METRICS
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-- Deduplication - some variables exists both in GLOBAL_STATUS and INNODB_METRICS
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-- Keep the one from GLOBAL_STATUS as it is always enabled and it's more likely to be used for existing tools.
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WHERE NAME NOT IN (
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'lock_row_lock_time', 'lock_row_lock_time_avg', 'lock_row_lock_time_max', 'lock_row_lock_waits',
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'buffer_pool_reads', 'buffer_pool_read_requests', 'buffer_pool_write_requests', 'buffer_pool_wait_free',
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'buffer_pool_read_ahead', 'buffer_pool_read_ahead_evicted', 'buffer_pool_pages_total', 'buffer_pool_pages_misc',
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'buffer_pool_pages_data', 'buffer_pool_bytes_data', 'buffer_pool_pages_dirty', 'buffer_pool_bytes_dirty',
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'buffer_pool_pages_free', 'buffer_pages_created', 'buffer_pages_written', 'buffer_pages_read',
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'buffer_data_reads', 'buffer_data_written', 'file_num_open_files',
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'os_log_bytes_written', 'os_log_fsyncs', 'os_log_pending_fsyncs', 'os_log_pending_writes',
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'log_waits', 'log_write_requests', 'log_writes', 'innodb_dblwr_writes', 'innodb_dblwr_pages_written', 'innodb_page_size')
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) UNION ALL (
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SELECT 'NOW()' AS Variable_name, NOW(3) AS Variable_value, 'System Time' AS Type, 'YES' AS Enabled
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) UNION ALL (
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SELECT 'UNIX_TIMESTAMP()' AS Variable_name, ROUND(UNIX_TIMESTAMP(NOW(3)), 3) AS Variable_value, 'System Time' AS Type, 'YES' AS Enabled
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)
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ORDER BY Type, Variable_name;
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