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The bug was fixed by the patch for Bug 52044. Add a test case. mysql-test/r/flush.result: Update results (Bug#52117) mysql-test/t/flush.test: Add a test case for Bug#52117 "Pending FLUSH TALBES <list> aborts transactions unnecessarily"
376 lines
11 KiB
Plaintext
376 lines
11 KiB
Plaintext
drop table if exists t1,t2;
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drop database if exists mysqltest;
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create temporary table t1(n int not null primary key);
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create table t2(n int);
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insert into t2 values(3);
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select * from t1;
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n
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3
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flush tables with read lock;
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drop table t2;
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ERROR HY000: Can't execute the query because you have a conflicting read lock
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drop table t2;
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unlock tables;
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create database mysqltest;
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create table mysqltest.t1(n int);
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insert into mysqltest.t1 values (23);
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flush tables with read lock;
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drop database mysqltest;
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select * from mysqltest.t1;
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n
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23
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unlock tables;
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create table t1 (n int);
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flush tables with read lock;
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insert into t1 values (345);
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select * from t1;
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n
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345
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drop table t1;
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create table t1 (c1 int);
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lock table t1 write;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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lock table t1 read;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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flush tables with read lock;
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lock table t1 write;
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ERROR HY000: Can't execute the query because you have a conflicting read lock
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lock table t1 read;
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lock table t1 write;
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ERROR HY000: Can't execute the query because you have a conflicting read lock
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unlock tables;
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create table t2 (c1 int);
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create table t3 (c1 int);
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lock table t1 read, t2 read, t3 write;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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lock table t1 read, t2 read, t3 read;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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drop table t1, t2, t3;
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create table t1 (c1 int);
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create table t2 (c1 int);
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lock table t1 write;
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flush tables with read lock;
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insert into t2 values(1);
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unlock tables;
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drop table t1, t2;
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drop table if exists t1, t2;
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set session low_priority_updates=1;
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create table t1 (a int);
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create table t2 (b int);
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lock tables t1 write;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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lock tables t1 read, t2 write;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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lock tables t1 read;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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drop table t1, t2;
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set session low_priority_updates=default;
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select benchmark(200, (select sin(1))) > 1000;
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End of 5.0 tests
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set @old_general_log= @@general_log;
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set @old_read_only= @@read_only;
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set global general_log= on;
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flush tables with read lock;
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flush logs;
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unlock tables;
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set global read_only=1;
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flush logs;
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unlock tables;
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flush tables with read lock;
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flush logs;
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unlock tables;
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set global general_log= @old_general_log;
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set global read_only= @old_read_only;
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End of 5.1 tests
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#
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# Additional test for bug #51136 "Crash in pthread_rwlock_rdlock
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# on TEMPORARY + HANDLER + LOCK + SP".
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# Also see the main test for this bug in include/handler.inc.
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#
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drop tables if exists t1, t2;
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create table t1 (i int);
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create temporary table t2 (j int);
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flush tables with read lock;
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lock table t2 read;
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# This commit should not release any MDL locks.
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commit;
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# The below statement crashed before the bug fix as it
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# has attempted to release global shared metadata lock
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# which was already released by commit.
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unlock tables;
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drop tables t1, t2;
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#
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# Tests for WL#5000 FLUSH TABLES|TABLE table_list WITH READ LOCK
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#
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# I. Check the incompatible changes in the grammar.
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#
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flush tables with read lock, hosts;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' hosts' at line 1
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flush privileges, tables;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables' at line 1
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flush privileges, tables with read lock;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables with read lock' at line 1
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flush privileges, tables;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables' at line 1
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flush tables with read lock, tables;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' tables' at line 1
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show tables;
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Tables_in_test
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#
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# II. Check the allowed syntax.
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#
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drop table if exists t1, t2, t3;
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create table t1 (a int);
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create table t2 (a int);
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create table t3 (a int);
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lock table t1 read, t2 read;
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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flush tables with read lock;
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flush tables t1, t2 with read lock;
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flush tables t1, t2 with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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flush tables with read lock;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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select * from t1;
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a
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select * from t2;
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a
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select * from t3;
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ERROR HY000: Table 't3' was not locked with LOCK TABLES
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insert into t1 (a) values (1);
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ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
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insert into t2 (a) values (1);
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ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
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insert into t3 (a) values (1);
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ERROR HY000: Table 't3' was not locked with LOCK TABLES
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lock table no_such_table read;
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ERROR 42S02: Table 'test.no_such_table' doesn't exist
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#
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# We implicitly left the locked tables
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# mode but still have the read lock.
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#
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insert into t2 (a) values (1);
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ERROR HY000: Can't execute the query because you have a conflicting read lock
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unlock tables;
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insert into t1 (a) values (1);
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insert into t2 (a) values (1);
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flush table t1, t2 with read lock;
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select * from t1;
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a
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1
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select * from t2;
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a
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1
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select * from t3;
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ERROR HY000: Table 't3' was not locked with LOCK TABLES
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insert into t1 (a) values (2);
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ERROR HY000: Table 't1' was locked with a READ lock and can't be updated
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insert into t2 (a) values (2);
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ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
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insert into t3 (a) values (2);
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ERROR HY000: Table 't3' was not locked with LOCK TABLES
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lock table no_such_table read;
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ERROR 42S02: Table 'test.no_such_table' doesn't exist
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insert into t3 (a) values (2);
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#
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# III. Concurrent tests.
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#
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# --> connection default
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#
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# Check that flush tables <list> with read lock
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# does not affect non-locked tables.
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#
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flush tables t1 with read lock;
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# --> connection con1;
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select * from t1;
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a
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1
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select * from t2;
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a
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1
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insert into t2 (a) values (3);
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# --> connection default;
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unlock tables;
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#
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# Check that "FLUSH TABLES <list> WITH READ LOCK" is
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# compatible with active "FLUSH TABLES WITH READ LOCK".
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# Vice versa it is not true, since tables read-locked by
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# "FLUSH TABLES <list> WITH READ LOCK" can't be flushed.
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flush tables with read lock;
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# --> connection con1;
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flush table t1 with read lock;
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select * from t1;
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a
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1
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unlock tables;
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# --> connection default;
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unlock tables;
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#
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# Check that FLUSH TABLES t1 WITH READ LOCK
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# does not conflict with an existing FLUSH TABLES t2
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# WITH READ LOCK.
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#
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flush table t1 with read lock;
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# --> connection con1
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flush table t2 with read lock;
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unlock tables;
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# --> connection default
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unlock tables;
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#
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# Check that FLUSH TABLES t1 WITH READ LOCK
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# does not conflict with SET GLOBAL read_only=1.
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#
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set global read_only=1;
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# connection con1
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flush table t1 with read lock;
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unlock tables;
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# connection default
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set global read_only=0;
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#
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# Check that it's possible to read-lock
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# tables locked with FLUSH TABLE <list> WITH READ LOCK.
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#
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flush tables t1, t2 with read lock;
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# connection con1
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lock table t1 read, t2 read;
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unlock tables;
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# connection default
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unlock tables;
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# --> connection con1
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drop table t1, t2, t3;
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#
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# Bug#51710 FLUSH TABLES <view> WITH READ LOCK kills the server
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#
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drop view if exists v1, v2, v3;
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drop table if exists t1, v1;
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create table t1 (a int);
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create view v1 as select 1;
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create view v2 as select * from t1;
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create view v3 as select * from v2;
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flush table v1, v2, v3 with read lock;
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ERROR HY000: 'test.v1' is not BASE TABLE
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flush table v1 with read lock;
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ERROR HY000: 'test.v1' is not BASE TABLE
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flush table v2 with read lock;
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ERROR HY000: 'test.v2' is not BASE TABLE
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flush table v3 with read lock;
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ERROR HY000: 'test.v3' is not BASE TABLE
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create temporary table v1 (a int);
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flush table v1 with read lock;
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ERROR HY000: 'test.v1' is not BASE TABLE
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drop view v1;
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create table v1 (a int);
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flush table v1 with read lock;
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drop temporary table v1;
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unlock tables;
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drop view v2, v3;
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drop table t1, v1;
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#
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# FLUSH TABLES <list> WITH READ LOCK and HANDLER
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#
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drop table if exists t1;
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create table t1 (a int, key a (a));
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insert into t1 (a) values (1), (2), (3);
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handler t1 open;
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handler t1 read a next;
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a
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1
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handler t1 read a next;
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a
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2
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flush tables t1 with read lock;
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handler t1 read a next;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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unlock tables;
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#
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# Sic: lost handler position.
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#
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handler t1 read a next;
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a
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1
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handler t1 close;
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drop table t1;
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#
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# Bug#52117 Pending FLUSH TALBES <list> aborts
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# transactions unnecessarily.
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#
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drop table if exists t1;
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# --> conection default
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create table t1 (a int);
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begin;
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select * from t1;
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a
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# --> connection con1
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#
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# Issue a LOCK TABLE t1 READ. We could use HANDLER t1 OPEN
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# or a long-running select -- anything that
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# prevents FLUSH TABLE t1 from immediate completion would do.
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#
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lock table t1 read;
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# --> connection con2
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#
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# FLUSH TABLE expels the table definition from the cache.
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# Sending 'flush table t1'...
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flush table t1;
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# --> connection default
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# Let flush table sync in.
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select * from t1;
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# --> connection con1
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select * from t1;
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a
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unlock tables;
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# --> connection con2
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# Reaping 'flush table t1'...
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# --> connection default
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# Reaping 'select * from t1'...
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a
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commit;
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#
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# Repeat the same test but with FLUSH TABLES
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#
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begin;
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select * from t1;
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a
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# --> connection con1
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#
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# Issue a LOCK TABLE t1 READ.
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#
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lock table t1 read;
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# --> connection con2
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#
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# FLUSH TABLES expels the table definition from the cache.
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# Sending 'flush tables'...
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flush tables;
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# --> connection default
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# Let flush table sync in.
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select * from t1;
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# --> connection con1
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select * from t1;
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a
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unlock tables;
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# --> connection con2
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# Reaping 'flush tables'...
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# --> connection default
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# Reaping 'select * from t1'...
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a
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commit;
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# Cleanup
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# --> connection con1
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# --> connection con2
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# --> connection default
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drop table t1;
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