mirror of
https://github.com/MariaDB/server.git
synced 2025-01-30 18:41:56 +01:00
775cba4d0f
- FLUSH GLOBAL STATUS now resets most global_status_vars.
At this stage, this is mainly to be used for testing.
- FLUSH SESSION STATUS added as an alias for FLUSH STATUS.
- FLUSH STATUS does not require any privilege (before required RELOAD).
- FLUSH GLOBAL STATUS requires RELOAD privilege.
- All global status reset moved to FLUSH GLOBAL STATUS.
- Replication semisync status variables are now reset by
FLUSH GLOBAL STATUS.
- In test cases, the only changes are:
- Replace FLUSH STATUS with FLUSH GLOBAL STATUS
- Replace FLUSH STATUS with FLUSH STATUS; FLUSH GLOBAL STATUS.
This was only done in a few tests where the test was using SHOW STATUS
for both local and global variables.
- Uptime_since_flush_status is now always provided, independent if
ENABLED_PROFILING is enabled when compiling MariaDB.
- @@global.Uptime_since_flush_status is reset on FLUSH GLOBAL STATUS
and @@session.Uptime_since_flush_status is reset on FLUSH SESSION STATUS.
- When connected, @@session.Uptime_since_flush_status is set to 0.
281 lines
13 KiB
Text
281 lines
13 KiB
Text
show databases;
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Database
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information_schema
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mtr
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mysql
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performance_schema
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sys
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test
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select count(*) from performance_schema.performance_timers;
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count(*)
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5
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select count(*) from performance_schema.setup_consumers;
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count(*)
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15
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select count(*) > 4 from performance_schema.setup_instruments;
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count(*) > 4
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1
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select count(*) from performance_schema.setup_timers;
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count(*)
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5
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Warnings:
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Warning 1287 'performance_schema.setup_timers' is deprecated and will be removed in a future release
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select * from performance_schema.accounts;
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select * from performance_schema.cond_instances;
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select * from performance_schema.events_stages_current;
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select * from performance_schema.events_stages_history;
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select * from performance_schema.events_stages_history_long;
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select * from performance_schema.events_stages_summary_by_account_by_event_name;
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select * from performance_schema.events_stages_summary_by_host_by_event_name;
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select * from performance_schema.events_stages_summary_by_thread_by_event_name;
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select * from performance_schema.events_stages_summary_by_user_by_event_name;
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select * from performance_schema.events_stages_summary_global_by_event_name;
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select * from performance_schema.events_statements_current;
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select * from performance_schema.events_statements_history;
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select * from performance_schema.events_statements_history_long;
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select * from performance_schema.events_statements_summary_by_account_by_event_name;
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select * from performance_schema.events_statements_summary_by_digest;
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select * from performance_schema.events_statements_summary_by_host_by_event_name;
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select * from performance_schema.events_statements_summary_by_thread_by_event_name;
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select * from performance_schema.events_statements_summary_by_user_by_event_name;
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select * from performance_schema.events_statements_summary_global_by_event_name;
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select * from performance_schema.events_transactions_current;
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select * from performance_schema.events_transactions_history;
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select * from performance_schema.events_transactions_history_long;
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select * from performance_schema.events_transactions_summary_by_account_by_event_name;
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select * from performance_schema.events_transactions_summary_by_host_by_event_name;
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select * from performance_schema.events_transactions_summary_by_thread_by_event_name;
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select * from performance_schema.events_transactions_summary_by_user_by_event_name;
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select * from performance_schema.events_transactions_summary_global_by_event_name;
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select * from performance_schema.events_waits_current;
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select * from performance_schema.events_waits_history;
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select * from performance_schema.events_waits_history_long;
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select * from performance_schema.events_waits_summary_by_account_by_event_name;
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select * from performance_schema.events_waits_summary_by_host_by_event_name;
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select * from performance_schema.events_waits_summary_by_instance;
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select * from performance_schema.events_waits_summary_by_thread_by_event_name;
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select * from performance_schema.events_waits_summary_by_user_by_event_name;
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select * from performance_schema.events_waits_summary_global_by_event_name;
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select * from performance_schema.memory_summary_by_account_by_event_name;
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select * from performance_schema.memory_summary_by_host_by_event_name;
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select * from performance_schema.memory_summary_by_thread_by_event_name;
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select * from performance_schema.memory_summary_by_user_by_event_name;
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select * from performance_schema.memory_summary_global_by_event_name;
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select * from performance_schema.file_instances;
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select * from performance_schema.file_summary_by_event_name;
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select * from performance_schema.file_summary_by_instance;
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select * from performance_schema.host_cache;
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select * from performance_schema.hosts;
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select * from performance_schema.memory_summary_by_account_by_event_name;
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select * from performance_schema.memory_summary_by_host_by_event_name;
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select * from performance_schema.memory_summary_by_thread_by_event_name;
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select * from performance_schema.memory_summary_by_user_by_event_name;
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select * from performance_schema.memory_summary_global_by_event_name;
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select * from performance_schema.metadata_locks;
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select * from performance_schema.mutex_instances;
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select * from performance_schema.objects_summary_global_by_type;
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select * from performance_schema.performance_timers;
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select * from performance_schema.rwlock_instances;
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select * from performance_schema.session_account_connect_attrs;
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select * from performance_schema.session_connect_attrs;
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select * from performance_schema.setup_actors;
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select * from performance_schema.setup_consumers;
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select * from performance_schema.setup_instruments;
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select * from performance_schema.setup_objects;
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select * from performance_schema.setup_timers;
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select * from performance_schema.socket_instances;
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select * from performance_schema.socket_summary_by_instance;
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select * from performance_schema.socket_summary_by_event_name;
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select * from performance_schema.table_handles;
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select * from performance_schema.table_io_waits_summary_by_index_usage;
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select * from performance_schema.table_io_waits_summary_by_table;
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select * from performance_schema.table_lock_waits_summary_by_table;
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select * from performance_schema.threads;
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select * from performance_schema.users;
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select * from performance_schema.replication_connection_configuration;
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select * from performance_schema.replication_applier_configuration;
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select * from performance_schema.replication_applier_status;
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select * from performance_schema.replication_applier_status_by_coordinator;
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select * from performance_schema.global_status;
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select * from performance_schema.status_by_thread;
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select * from performance_schema.status_by_user;
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select * from performance_schema.status_by_host;
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select * from performance_schema.status_by_account;
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select * from performance_schema.session_status;
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show global variables like "performance_schema%";
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Variable_name Value
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performance_schema ON
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performance_schema_accounts_size 100
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performance_schema_digests_size 200
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performance_schema_events_stages_history_long_size 1000
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performance_schema_events_stages_history_size 10
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performance_schema_events_statements_history_long_size 1000
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performance_schema_events_statements_history_size 10
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performance_schema_events_transactions_history_long_size 1000
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performance_schema_events_transactions_history_size 10
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performance_schema_events_waits_history_long_size 10000
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performance_schema_events_waits_history_size 10
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performance_schema_hosts_size 100
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performance_schema_max_cond_classes 90
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performance_schema_max_cond_instances 1500
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performance_schema_max_digest_length 1024
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performance_schema_max_file_classes 80
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performance_schema_max_file_handles 32768
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performance_schema_max_file_instances 10000
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performance_schema_max_index_stat 34
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performance_schema_max_memory_classes 320
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performance_schema_max_metadata_locks 10000
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performance_schema_max_mutex_classes 210
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performance_schema_max_mutex_instances 5000
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performance_schema_max_prepared_statements_instances 100
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performance_schema_max_program_instances 5000
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performance_schema_max_rwlock_classes 50
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performance_schema_max_rwlock_instances 5000
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performance_schema_max_socket_classes 10
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performance_schema_max_socket_instances 1000
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performance_schema_max_sql_text_length 1024
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performance_schema_max_stage_classes 160
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performance_schema_max_statement_classes 222
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performance_schema_max_statement_stack 10
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performance_schema_max_table_handles 1000
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performance_schema_max_table_instances 500
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performance_schema_max_table_lock_stat 500
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performance_schema_max_thread_classes 50
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performance_schema_max_thread_instances 400
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performance_schema_session_connect_attrs_size 2048
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performance_schema_setup_actors_size 100
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performance_schema_setup_objects_size 100
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performance_schema_users_size 100
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show engine PERFORMANCE_SCHEMA status;
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show global status like "performance_schema%";
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drop table if exists db1.t1;
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drop database if exists db1;
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create database db1;
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create table db1.t1 (a int, b char(10) default 'default',
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unique key uidx(a));
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insert into db1.t1 values('1', 'abc');
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insert into db1.t1 values('2', 'abc');
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select * from db1.t1 where a='1';
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a b
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1 abc
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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3 TABLE db1 t1
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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2 TABLE db1 t1 NULL
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1 TABLE db1 t1 uidx
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flush tables;
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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1 TABLE db1 t1
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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1 TABLE db1 t1 uidx
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select variable_value > 0 from information_schema.global_status
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where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';
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variable_value > 0
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1
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FLUSH GLOBAL STATUS;
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select variable_value from information_schema.global_status
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where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';
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variable_value
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0
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create table db1.t2 (a int, b char(10) default 'default',
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unique key uidx(a));
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insert into db1.t1 values('3', 'abc');
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insert into db1.t1 values('4', 'abc');
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select * from db1.t1 where a='1';
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a b
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1 abc
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insert into db1.t2 values('1', 'abc');
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insert into db1.t2 values('2', 'abc');
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select * from db1.t2 where a='1';
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a b
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1 abc
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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4 TABLE db1 t1
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3 TABLE db1 t2
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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2 TABLE db1 t1 NULL
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2 TABLE db1 t1 uidx
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2 TABLE db1 t2 NULL
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1 TABLE db1 t2 (index 0)
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flush tables;
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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2 TABLE db1 t1
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0 TABLE db1 t2
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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2 TABLE db1 t1 uidx
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select variable_value > 0 from information_schema.global_status
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where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';
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variable_value > 0
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1
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FLUSH GLOBAL STATUS;
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update performance_schema.setup_objects set ENABLED='NO' where OBJECT_TYPE='TABLE';
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insert into db1.t1 values('5', 'abc');
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insert into db1.t1 values('6', 'abc');
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select * from db1.t1 where a='1';
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a b
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1 abc
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insert into db1.t2 values('3', 'abc');
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insert into db1.t2 values('4', 'abc');
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select * from db1.t2 where a='1';
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a b
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1 abc
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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flush tables;
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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from performance_schema.table_io_waits_summary_by_table
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME
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select COUNT_STAR, OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME
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from performance_schema.table_io_waits_summary_by_index_usage
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where OBJECT_SCHEMA='db1'
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;
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COUNT_STAR OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME INDEX_NAME
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select variable_value from information_schema.global_status
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where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';
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variable_value
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0
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drop database db1;
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update performance_schema.setup_objects set ENABLED='YES'
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where OBJECT_TYPE='TABLE' and OBJECT_SCHEMA="%";
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