mirror of
https://github.com/MariaDB/server.git
synced 2025-01-29 02:05:57 +01:00
c3afcc7c0a
We must prevent InnoDB purge from acquiring MDL on the tables. Since MDEV-12288, INSERT is generating work for purge.
84 lines
2.9 KiB
Text
84 lines
2.9 KiB
Text
--source include/have_metadata_lock_info.inc
|
|
--source include/have_innodb.inc
|
|
|
|
--echo #
|
|
--echo # MDEV-12882 - Assertion `mdl_ticket->m_type == MDL_SHARED_UPGRADABLE ||
|
|
--echo # mdl_ticket->m_type == MDL_SHARED_NO_WRITE ||
|
|
--echo # mdl_ticket->m_type == MDL_SHARED_NO_READ_WRITE ||
|
|
--echo # mdl_ticket->m_type == MDL_SHARED_READ'
|
|
--echo # failed in MDL_context::upgrade_shared_lock
|
|
--echo #
|
|
|
|
CREATE TABLE t1(a INT) ENGINE=InnoDB;
|
|
CREATE TABLE t3(a INT) ENGINE=myisam;
|
|
LOCK TABLES t1 WRITE CONCURRENT, t1 AS t2 READ;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
UNLOCK TABLES;
|
|
LOCK TABLES t1 AS t2 READ, t1 WRITE CONCURRENT;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
UNLOCK TABLES;
|
|
LOCK TABLES t1 WRITE CONCURRENT, t3 WRITE;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
UNLOCK TABLES;
|
|
LOCK TABLES t3 WRITE, t1 WRITE CONCURRENT;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
UNLOCK TABLES;
|
|
LOCK TABLES t1 WRITE, mysql.user WRITE;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
UNLOCK TABLES;
|
|
--error ER_CANT_LOCK_LOG_TABLE
|
|
LOCK TABLES mysql.general_log WRITE;
|
|
# The following may work in embedded server
|
|
--error 0,ER_DBACCESS_DENIED_ERROR
|
|
LOCK TABLES t1 WRITE,information_schema.tables READ;
|
|
UNLOCK TABLES;
|
|
DROP TABLE t1,t3;
|
|
|
|
--echo #
|
|
--echo # Check MDL locks taken for different kind of tables by open
|
|
--echo #
|
|
|
|
CREATE TABLE t1(a INT) ENGINE=InnoDB;
|
|
CREATE TABLE t3(a INT) ENGINE=myisam;
|
|
connect(purge_control,localhost,root,,);
|
|
START TRANSACTION WITH CONSISTENT SNAPSHOT;
|
|
connect (locker,localhost,root,,);
|
|
connection default;
|
|
|
|
FLUSH TABLES WITH READ LOCK;
|
|
connection locker;
|
|
--send insert into t1 values (1)
|
|
connection default;
|
|
# Wait till above update gets blocked on a user lock.
|
|
let $wait_condition=
|
|
select count(*) > 0 from information_schema.processlist
|
|
where state = "Waiting for backup lock";
|
|
--source include/wait_condition.inc
|
|
connection default;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
unlock tables;
|
|
connection locker;
|
|
--reap
|
|
unlock tables;
|
|
connection default;
|
|
|
|
FLUSH TABLES WITH READ LOCK;
|
|
connection locker;
|
|
--send insert into t3 values (2)
|
|
connection default;
|
|
# Wait till above update gets blocked on a user lock.
|
|
let $wait_condition=
|
|
select count(*) > 0 from information_schema.processlist
|
|
where state = "Waiting for backup lock";
|
|
--source include/wait_condition.inc
|
|
connection default;
|
|
SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
|
|
unlock tables;
|
|
connection locker;
|
|
--reap
|
|
unlock tables;
|
|
disconnect purge_control;
|
|
connection default;
|
|
|
|
disconnect locker;
|
|
DROP TABLE t1,t3;
|