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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.
57 lines
1.7 KiB
Plaintext
57 lines
1.7 KiB
Plaintext
# Tests for PERFORMANCE_SCHEMA
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--source include/not_embedded.inc
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--source include/have_perfschema.inc
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--source ../include/start_server_common.inc
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#############################
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# Setup database and tables.
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#############################
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--disable_warnings
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drop table if exists db1.t1;
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drop database if exists db1;
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--enable_warnings
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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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#######################
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# Execute few queries.
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#######################
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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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--disable_ps2_protocol
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select * from db1.t1 where a='1';
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--enable_ps2_protocol
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#####################################################
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# Run few queries on Performance Schema stats tables.
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#####################################################
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# There should be 3 entries in following table. 2 for insert and 1 for select.
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# This is because lock stats are still in the table handles
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select COUNT_STAR from performance_schema.table_lock_waits_summary_by_table
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where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
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# Now force aggregation by closing table handles
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FLUSH TABLES;
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select COUNT_STAR from performance_schema.table_lock_waits_summary_by_table
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where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
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# Expect TABLE_LOCK_STAT lost
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--disable_warnings
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select variable_value > 0 from information_schema.global_status
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where variable_name like 'PERFORMANCE_SCHEMA_TABLE_LOCK_STAT_LOST';
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# While at it, check that FLUSH STATUS Resets the lost counter
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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_TABLE_LOCK_STAT_LOST';
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--enable_warnings
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###########
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# Cleanup.
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###########
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drop database db1;
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