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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.
79 lines
3.5 KiB
Text
79 lines
3.5 KiB
Text
update performance_schema.setup_instruments set enabled='NO';
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update performance_schema.setup_instruments set enabled='YES'
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where name like "wait/io/file/myisam/%";
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update performance_schema.setup_consumers
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set enabled='YES';
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truncate table performance_schema.events_waits_history_long;
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truncate table performance_schema.events_statements_summary_by_digest;
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flush global status;
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drop table if exists test.no_index_tab;
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create table test.no_index_tab ( a varchar(255), b int ) engine=myisam;
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insert into no_index_tab set a = 'foo', b = 1;
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insert into no_index_tab set a = 'foo', b = 1;
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insert into no_index_tab set a = 'foo', b = 1;
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select event_name,
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left(source, locate(":", source)) as short_source,
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operation, number_of_bytes,
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substring(object_name, locate("no_index_tab", object_name)) as short_name
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from performance_schema.events_waits_history_long
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where operation not like "tell"
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and event_name like "wait/io/file/myisam/%"
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having short_name <> ""
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order by thread_id, event_id;
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event_name short_source operation number_of_bytes short_name
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wait/io/file/myisam/kfile create NULL no_index_tab.MYI
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wait/io/file/myisam/dfile create NULL no_index_tab.MYD
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wait/io/file/myisam/kfile write 176 no_index_tab.MYI
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wait/io/file/myisam/kfile write 100 no_index_tab.MYI
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wait/io/file/myisam/kfile write 7 no_index_tab.MYI
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wait/io/file/myisam/kfile write 7 no_index_tab.MYI
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wait/io/file/myisam/kfile write 7 no_index_tab.MYI
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wait/io/file/myisam/kfile chsize 1024 no_index_tab.MYI
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wait/io/file/myisam/dfile close NULL no_index_tab.MYD
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wait/io/file/myisam/kfile close NULL no_index_tab.MYI
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wait/io/file/myisam/kfile open NULL no_index_tab.MYI
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wait/io/file/myisam/kfile read 24 no_index_tab.MYI
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wait/io/file/myisam/kfile seek NULL no_index_tab.MYI
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wait/io/file/myisam/kfile read 297 no_index_tab.MYI
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wait/io/file/myisam/dfile open NULL no_index_tab.MYD
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wait/io/file/myisam/kfile write 3 no_index_tab.MYI
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wait/io/file/myisam/dfile write 20 no_index_tab.MYD
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wait/io/file/myisam/kfile write 124 no_index_tab.MYI
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wait/io/file/myisam/dfile write 20 no_index_tab.MYD
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wait/io/file/myisam/kfile write 124 no_index_tab.MYI
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wait/io/file/myisam/dfile write 20 no_index_tab.MYD
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wait/io/file/myisam/kfile write 124 no_index_tab.MYI
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show global status like 'performance_schema_%';
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Variable_name Value
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Performance_schema_accounts_lost 0
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Performance_schema_cond_classes_lost 0
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Performance_schema_cond_instances_lost 0
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Performance_schema_digest_lost 0
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Performance_schema_file_classes_lost 0
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Performance_schema_file_handles_lost 0
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Performance_schema_file_instances_lost 0
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Performance_schema_hosts_lost 0
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Performance_schema_index_stat_lost 0
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Performance_schema_locker_lost 0
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Performance_schema_memory_classes_lost 0
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Performance_schema_metadata_lock_lost 0
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Performance_schema_mutex_classes_lost 0
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Performance_schema_mutex_instances_lost 0
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Performance_schema_nested_statement_lost 0
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Performance_schema_prepared_statements_lost 0
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Performance_schema_program_lost 0
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Performance_schema_rwlock_classes_lost 0
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Performance_schema_rwlock_instances_lost 0
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Performance_schema_session_connect_attrs_lost 0
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Performance_schema_socket_classes_lost 0
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Performance_schema_socket_instances_lost 0
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Performance_schema_stage_classes_lost 0
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Performance_schema_statement_classes_lost 0
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Performance_schema_table_handles_lost 0
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Performance_schema_table_instances_lost 0
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Performance_schema_table_lock_stat_lost 0
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Performance_schema_thread_classes_lost 0
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Performance_schema_thread_instances_lost 0
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Performance_schema_users_lost 0
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update performance_schema.setup_instruments set enabled='YES';
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drop table test.no_index_tab;
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