mirror of
https://github.com/MariaDB/server.git
synced 2025-01-20 05:52:27 +01:00
33 lines
1.3 KiB
Text
33 lines
1.3 KiB
Text
use performance_schema;
|
|
grant SELECT, UPDATE, LOCK TABLES on performance_schema.* to pfsuser@localhost;
|
|
flush privileges;
|
|
connect (con1, localhost, pfsuser, , test);
|
|
lock tables performance_schema.SETUP_INSTRUMENTS read;
|
|
select * from performance_schema.SETUP_INSTRUMENTS;
|
|
unlock tables;
|
|
lock tables performance_schema.SETUP_INSTRUMENTS write;
|
|
update performance_schema.SETUP_INSTRUMENTS set enabled='NO';
|
|
update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
|
|
unlock tables;
|
|
connection default;
|
|
flush tables with read lock;
|
|
connection con1;
|
|
lock tables performance_schema.SETUP_INSTRUMENTS read;
|
|
select * from performance_schema.SETUP_INSTRUMENTS;
|
|
unlock tables;
|
|
lock tables performance_schema.SETUP_INSTRUMENTS write;
|
|
connection default;
|
|
select event_name,
|
|
left(source, locate(":", source)) as short_source,
|
|
timer_end, timer_wait, operation
|
|
from performance_schema.EVENTS_WAITS_CURRENT
|
|
where event_name like "wait/synch/cond/sql/COND_global_read_lock";
|
|
event_name short_source timer_end timer_wait operation
|
|
wait/synch/cond/sql/COND_global_read_lock lock.cc: NULL NULL wait
|
|
unlock tables;
|
|
update performance_schema.SETUP_INSTRUMENTS set enabled='NO';
|
|
update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
|
|
unlock tables;
|
|
connection default;
|
|
drop user pfsuser@localhost;
|
|
flush privileges;
|