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c68620df48
The test case can get extra rows in its output from table performance_schema.table_handles, left there by an earlier test case (for example main.long_unique_delayed). So force a server restart at the beginning of the test. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
921 lines
22 KiB
Text
921 lines
22 KiB
Text
# restart
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UPDATE performance_schema.setup_instruments SET enabled = 'NO', timed = 'YES';
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UPDATE performance_schema.setup_instruments SET enabled = 'YES'
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WHERE name in ('wait/io/table/sql/handler',
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'wait/lock/table/sql/handler',
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'wait/lock/metadata/sql/mdl');
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set @orig_sql_mode= @@sql_mode;
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set sql_mode= (select replace(@@sql_mode,'NO_AUTO_CREATE_USER',''));
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grant ALL on *.* to user1@localhost;
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grant ALL on *.* to user2@localhost;
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set sql_mode= @orig_sql_mode;
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insert into performance_schema.setup_objects (object_type, object_schema, object_name, enabled, timed)
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values ('TABLE', 'mtr', '%', 'NO', 'NO');
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# Switch to (con1, localhost, user1, , )
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connect con1, localhost, user1, , ;
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# Switch to (con2, localhost, user2, , )
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connect con2, localhost, user2, , ;
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connection default;
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drop function if exists thread_id_name;
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create function thread_id_name(THREAD_ID int)
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returns varchar(16)
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begin
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if (THREAD_ID IS NULL)
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then
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return NULL;
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end if;
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if (THREAD_ID = @user1_tid)
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then
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return "USER1";
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end if;
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if (THREAD_ID = @user2_tid)
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then
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return "USER2";
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end if;
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return "OTHER";
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end;
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//
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select thread_id_name(NULL);
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thread_id_name(NULL)
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NULL
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select thread_id_name(@user1_tid);
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thread_id_name(@user1_tid)
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USER1
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select thread_id_name(@user2_tid);
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thread_id_name(@user2_tid)
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USER2
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prepare dump_metadata_locks from
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"select OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME,
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LOCK_TYPE, LOCK_DURATION, LOCK_STATUS,
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thread_id_name(OWNER_THREAD_ID) as OWNER_THREAD_ID
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from performance_schema.metadata_locks
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME,
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LOCK_TYPE, LOCK_DURATION, LOCK_STATUS, OWNER_THREAD_ID;";
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prepare dump_table_handles from
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"select OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME,
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INTERNAL_LOCK, EXTERNAL_LOCK,
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thread_id_name(OWNER_THREAD_ID) as OWNER_THREAD_ID
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from performance_schema.table_handles
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order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME,
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INTERNAL_LOCK, EXTERNAL_LOCK, OWNER_THREAD_ID;";
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prepare dump_waits_current from
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"select thread_id_name(THREAD_ID) as THREAD_ID,
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EVENT_NAME,
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TIMER_START is not NULL as TIMER_START_SET,
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TIMER_END is not NULL as TIMER_END_SET,
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OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME,
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OPERATION
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from performance_schema.events_waits_current
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where event_name = \'wait/lock/metadata/sql/mdl\';";
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prepare dump_waits_history_long from
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"select thread_id_name(THREAD_ID) as THREAD_ID,
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EVENT_NAME,
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TIMER_START is not NULL as TIMER_START_SET,
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TIMER_END is not NULL as TIMER_END_SET,
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OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME,
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OPERATION
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from performance_schema.events_waits_history_long
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where event_name = \'wait/lock/metadata/sql/mdl\';";
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truncate table performance_schema.events_statements_summary_by_digest;
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flush status;
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flush tables;
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (id INT PRIMARY KEY, b CHAR(100) DEFAULT 'initial value');
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INSERT INTO t1 (id) VALUES (1), (2), (3), (4), (5), (6), (7), (8);
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TRUNCATE TABLE performance_schema.events_waits_history_long;
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TRUNCATE TABLE performance_schema.events_waits_history;
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TRUNCATE TABLE performance_schema.events_waits_current;
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connection con1;
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BEGIN;
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SELECT * from t1 where id=1;
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id b
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1 initial value
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connection default;
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"---- Marker 1 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK READ
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EXTERNAL_LOCK NULL
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OWNER_THREAD_ID OTHER
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execute dump_waits_current;
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execute dump_waits_history_long;
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connection con1;
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COMMIT;
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connection default;
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"---- Marker 2 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK READ
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EXTERNAL_LOCK NULL
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OWNER_THREAD_ID OTHER
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execute dump_waits_current;
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execute dump_waits_history_long;
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connection con1;
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BEGIN;
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UPDATE t1 set b="new value" where id=2;
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connection default;
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"---- Marker 3 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_WRITE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK WRITE
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EXTERNAL_LOCK NULL
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OWNER_THREAD_ID OTHER
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execute dump_waits_current;
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execute dump_waits_history_long;
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connection con2;
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BEGIN;
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DROP TABLE t1;;
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connection default;
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"---- Marker 4 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE SCHEMA
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OBJECT_SCHEMA test
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OBJECT_NAME NULL
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LOCK_TYPE INTENTION_EXCLUSIVE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE EXCLUSIVE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS PENDING
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_WRITE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK WRITE
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EXTERNAL_LOCK NULL
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OWNER_THREAD_ID OTHER
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execute dump_waits_current;
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THREAD_ID USER2
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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execute dump_waits_history_long;
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connection con1;
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COMMIT;
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connection con2;
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connection default;
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"---- Marker 5 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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execute dump_table_handles;
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execute dump_waits_current;
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THREAD_ID USER2
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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execute dump_waits_history_long;
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THREAD_ID USER2
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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connection default;
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TRUNCATE TABLE performance_schema.events_waits_history_long;
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TRUNCATE TABLE performance_schema.events_waits_history;
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TRUNCATE TABLE performance_schema.events_waits_current;
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create table t1 (a int);
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connection con1;
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LOCK TABLE t1 READ;
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connection default;
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"---- Marker 6 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK READ NO INSERT
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EXTERNAL_LOCK READ EXTERNAL
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OWNER_THREAD_ID USER1
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execute dump_waits_current;
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execute dump_waits_history_long;
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connection con2;
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LOCK TABLE t1 write;;
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connection default;
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"---- Marker 7 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE SCHEMA
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OBJECT_SCHEMA test
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OBJECT_NAME NULL
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LOCK_TYPE INTENTION_EXCLUSIVE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_NO_READ_WRITE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS PENDING
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK READ NO INSERT
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EXTERNAL_LOCK READ EXTERNAL
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OWNER_THREAD_ID USER1
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execute dump_waits_current;
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THREAD_ID USER2
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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execute dump_waits_history_long;
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connection con1;
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UNLOCK TABLES;
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connection con2;
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connection default;
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"---- Marker 8 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE BACKUP
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OBJECT_SCHEMA NULL
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OBJECT_NAME NULL
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LOCK_TYPE BACKUP_DDL
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LOCK_DURATION STATEMENT
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE BACKUP
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OBJECT_SCHEMA NULL
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OBJECT_NAME NULL
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LOCK_TYPE BACKUP_DML
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LOCK_DURATION STATEMENT
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE SCHEMA
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OBJECT_SCHEMA test
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OBJECT_NAME NULL
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LOCK_TYPE INTENTION_EXCLUSIVE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_NO_READ_WRITE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK WRITE
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EXTERNAL_LOCK WRITE EXTERNAL
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OWNER_THREAD_ID USER2
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execute dump_waits_current;
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execute dump_waits_history_long;
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THREAD_ID USER2
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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connection con1;
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LOCK TABLES t1 read;;
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connection default;
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"---- Marker 9 ----"
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execute dump_metadata_locks;
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OBJECT_TYPE BACKUP
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OBJECT_SCHEMA NULL
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OBJECT_NAME NULL
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LOCK_TYPE BACKUP_DDL
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LOCK_DURATION STATEMENT
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE BACKUP
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OBJECT_SCHEMA NULL
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OBJECT_NAME NULL
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LOCK_TYPE BACKUP_DML
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LOCK_DURATION STATEMENT
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE FUNCTION
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OBJECT_SCHEMA test
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OBJECT_NAME thread_id_name
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LOCK_TYPE SHARED
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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|
OWNER_THREAD_ID OTHER
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OBJECT_TYPE SCHEMA
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OBJECT_SCHEMA test
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OBJECT_NAME NULL
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|
LOCK_TYPE INTENTION_EXCLUSIVE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA performance_schema
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OBJECT_NAME metadata_locks
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID OTHER
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_NO_READ_WRITE
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LOCK_DURATION TRANSACTION
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LOCK_STATUS GRANTED
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OWNER_THREAD_ID USER2
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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LOCK_TYPE SHARED_READ
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LOCK_DURATION TRANSACTION
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LOCK_STATUS PENDING
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OWNER_THREAD_ID USER1
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execute dump_table_handles;
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INTERNAL_LOCK WRITE
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EXTERNAL_LOCK WRITE EXTERNAL
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OWNER_THREAD_ID USER2
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execute dump_waits_current;
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THREAD_ID USER1
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EVENT_NAME wait/lock/metadata/sql/mdl
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TIMER_START_SET 1
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TIMER_END_SET 1
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OBJECT_TYPE TABLE
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OBJECT_SCHEMA test
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OBJECT_NAME t1
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INDEX_NAME NULL
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OPERATION metadata lock
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execute dump_waits_history_long;
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THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
connection con2;
|
|
UNLOCK TABLES;
|
|
connection con1;
|
|
connection default;
|
|
"---- Marker 10 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID USER1
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK READ NO INSERT
|
|
EXTERNAL_LOCK READ EXTERNAL
|
|
OWNER_THREAD_ID USER1
|
|
execute dump_waits_current;
|
|
execute dump_waits_history_long;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
THREAD_ID USER1
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
connection con1;
|
|
UNLOCK TABLES;
|
|
connection default;
|
|
"---- Marker 11 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK READ NO INSERT
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
execute dump_waits_history_long;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
THREAD_ID USER1
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
TRUNCATE TABLE performance_schema.events_waits_history_long;
|
|
TRUNCATE TABLE performance_schema.events_waits_history;
|
|
TRUNCATE TABLE performance_schema.events_waits_current;
|
|
connection con1;
|
|
BEGIN;
|
|
UPDATE LOW_PRIORITY t1 SET a=8;
|
|
connection default;
|
|
"---- Marker 12 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
LOCK_TYPE SHARED_WRITE
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID USER1
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK WRITE LOW PRIORITY
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
execute dump_waits_history_long;
|
|
connection con1;
|
|
COMMIT;
|
|
connection default;
|
|
TRUNCATE TABLE performance_schema.events_waits_history_long;
|
|
TRUNCATE TABLE performance_schema.events_waits_history;
|
|
TRUNCATE TABLE performance_schema.events_waits_current;
|
|
connection con1;
|
|
SELECT GET_LOCK('test', 0);
|
|
GET_LOCK('test', 0)
|
|
1
|
|
connection default;
|
|
"---- Marker 13 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
LOCK_TYPE SHARED_NO_WRITE
|
|
LOCK_DURATION EXPLICIT
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID USER1
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK WRITE LOW PRIORITY
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
execute dump_waits_history_long;
|
|
connection con2;
|
|
SELECT GET_LOCK('test', 120);;
|
|
connection default;
|
|
"---- Marker 14 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
LOCK_TYPE SHARED_NO_WRITE
|
|
LOCK_DURATION EXPLICIT
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID USER1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
LOCK_TYPE SHARED_NO_WRITE
|
|
LOCK_DURATION EXPLICIT
|
|
LOCK_STATUS PENDING
|
|
OWNER_THREAD_ID USER2
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK WRITE LOW PRIORITY
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
execute dump_waits_history_long;
|
|
connection con1;
|
|
SELECT RELEASE_LOCK('test');
|
|
RELEASE_LOCK('test')
|
|
1
|
|
connection con2;
|
|
GET_LOCK('test', 120)
|
|
1
|
|
connection default;
|
|
"---- Marker 15 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
LOCK_TYPE SHARED_NO_WRITE
|
|
LOCK_DURATION EXPLICIT
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID USER2
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK WRITE LOW PRIORITY
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
execute dump_waits_history_long;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
connection con2;
|
|
SELECT RELEASE_LOCK('test');
|
|
RELEASE_LOCK('test')
|
|
1
|
|
connection default;
|
|
"---- Marker 16 ----"
|
|
execute dump_metadata_locks;
|
|
OBJECT_TYPE FUNCTION
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME thread_id_name
|
|
LOCK_TYPE SHARED
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA performance_schema
|
|
OBJECT_NAME metadata_locks
|
|
LOCK_TYPE SHARED_READ
|
|
LOCK_DURATION TRANSACTION
|
|
LOCK_STATUS GRANTED
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_table_handles;
|
|
OBJECT_TYPE TABLE
|
|
OBJECT_SCHEMA test
|
|
OBJECT_NAME t1
|
|
INTERNAL_LOCK WRITE LOW PRIORITY
|
|
EXTERNAL_LOCK NULL
|
|
OWNER_THREAD_ID OTHER
|
|
execute dump_waits_current;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
execute dump_waits_history_long;
|
|
THREAD_ID USER2
|
|
EVENT_NAME wait/lock/metadata/sql/mdl
|
|
TIMER_START_SET 1
|
|
TIMER_END_SET 1
|
|
OBJECT_TYPE USER LEVEL LOCK
|
|
OBJECT_SCHEMA NULL
|
|
OBJECT_NAME test
|
|
INDEX_NAME NULL
|
|
OPERATION metadata lock
|
|
disconnect con1;
|
|
disconnect con2;
|
|
connection default;
|
|
drop table t1;
|
|
UPDATE performance_schema.setup_instruments SET enabled = 'YES', timed = 'YES';
|
|
revoke all privileges, grant option from user1@localhost;
|
|
revoke all privileges, grant option from user2@localhost;
|
|
drop user user1@localhost;
|
|
drop user user2@localhost;
|
|
drop function thread_id_name;
|
|
drop prepare dump_metadata_locks;
|
|
drop prepare dump_table_handles;
|
|
drop prepare dump_waits_current;
|
|
drop prepare dump_waits_history_long;
|
|
delete from performance_schema.setup_objects
|
|
where object_schema='mtr';
|
|
show global status like "performance_schema%";
|
|
Variable_name Value
|
|
Performance_schema_accounts_lost 0
|
|
Performance_schema_cond_classes_lost 0
|
|
Performance_schema_cond_instances_lost 0
|
|
Performance_schema_digest_lost 0
|
|
Performance_schema_file_classes_lost 0
|
|
Performance_schema_file_handles_lost 0
|
|
Performance_schema_file_instances_lost 0
|
|
Performance_schema_hosts_lost 0
|
|
Performance_schema_index_stat_lost 0
|
|
Performance_schema_locker_lost 0
|
|
Performance_schema_memory_classes_lost 0
|
|
Performance_schema_metadata_lock_lost 0
|
|
Performance_schema_mutex_classes_lost 0
|
|
Performance_schema_mutex_instances_lost 0
|
|
Performance_schema_nested_statement_lost 0
|
|
Performance_schema_prepared_statements_lost 0
|
|
Performance_schema_program_lost 0
|
|
Performance_schema_rwlock_classes_lost 0
|
|
Performance_schema_rwlock_instances_lost 0
|
|
Performance_schema_session_connect_attrs_lost 0
|
|
Performance_schema_socket_classes_lost 0
|
|
Performance_schema_socket_instances_lost 0
|
|
Performance_schema_stage_classes_lost 0
|
|
Performance_schema_statement_classes_lost 0
|
|
Performance_schema_table_handles_lost 0
|
|
Performance_schema_table_instances_lost 0
|
|
Performance_schema_table_lock_stat_lost 0
|
|
Performance_schema_thread_classes_lost 0
|
|
Performance_schema_thread_instances_lost 0
|
|
Performance_schema_users_lost 0
|