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Before breaking the connection we have to check that there's no query executing at the moment. Otherwise it can lead to crash in embedded server. client/mysqltest.c: Bug #33334 mysqltest_embedded crashes when disconnecting before reap. Wait until the query thread is finished before we break the connection. Waiting part moved to a separate wait_query_thread_end() function mysql-test/r/flush.result: Bug #33334 mysqltest_embedded crashes when disconnecting before reap. test result mysql-test/t/flush.test: Bug #33334 mysqltest_embedded crashes when disconnecting before reap. test case
176 lines
3.6 KiB
Text
176 lines
3.6 KiB
Text
connect (con1,localhost,root,,);
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connect (con2,localhost,root,,);
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connection con1;
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--disable_warnings
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drop table if exists t1,t2;
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drop database if exists mysqltest;
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--enable_warnings
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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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let $1=100;
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disable_query_log;
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while ($1)
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{
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connection con1;
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send replace into t1 select n from t2;
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connection con2;
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send flush tables;
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connection con1;
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reap;
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connection con2;
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reap;
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dec $1;
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}
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enable_query_log;
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connection con1;
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select * from t1;
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connection con2;
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flush tables with read lock;
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--error 1223
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drop table t2;
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connection con1;
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send drop table t2;
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connection con2;
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unlock tables;
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connection con1;
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reap;
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#test if drop database will wait until we release the global read lock
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connection con1;
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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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connection con2;
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send drop database mysqltest;
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connection con1;
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select * from mysqltest.t1;
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unlock tables;
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connection con2;
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reap;
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# test if dirty close releases global read lock
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connection con1;
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create table t1 (n int);
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flush tables with read lock;
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dirty_close con1;
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connection con2;
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insert into t1 values (345);
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select * from t1;
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drop table t1;
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#
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# Bug#9459 - deadlock with flush with lock, and lock table write
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#
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create table t1 (c1 int);
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lock table t1 write;
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# Cannot get the global read lock with write locked tables.
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--error 1192
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flush tables with read lock;
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lock table t1 read;
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# Can get the global read lock with read locked tables.
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flush tables with read lock;
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--error 1223
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lock table t1 write;
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lock table t1 read;
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--error 1223
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lock table t1 write;
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# Release all table locks and the global 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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# Cannot get the global read lock with write locked tables.
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--error 1192
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flush tables with read lock;
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lock table t1 read, t2 read, t3 read;
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# Can get the global read lock with read locked tables.
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flush tables with read lock;
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# Release all table locks and the global read lock.
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unlock tables;
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drop table t1, t2, t3;
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# End of 4.1 tests
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#
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# Test of deadlock problem when doing FLUSH TABLE with read lock
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# (Bug was in NTPL threads in Linux when using different mutex while
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# waiting for a condtion variable)
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create table t1 (c1 int);
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create table t2 (c1 int);
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connect (con1,localhost,root,,);
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connect (con3,localhost,root,,);
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connection con1;
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lock table t1 write;
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connection con2;
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send flush tables with read lock;
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--sleep 1
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connection con3;
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send insert into t2 values(1);
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--sleep 1
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connection con1;
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unlock tables;
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disconnect con1;
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connection con2;
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reap;
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disconnect con2;
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connection con3;
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# It hangs here (insert into t2 does not end).
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reap;
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disconnect con3;
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connection default;
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drop table t1, t2;
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#
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# Bug#32528 Global read lock with a low priority write lock causes a server crash
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#
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--disable_warnings
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drop table if exists t1, t2;
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--enable_warnings
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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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--error ER_LOCK_OR_ACTIVE_TRANSACTION
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flush tables with read lock;
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unlock tables;
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lock tables t1 read, t2 write;
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--error ER_LOCK_OR_ACTIVE_TRANSACTION
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flush tables with read lock;
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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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unlock tables;
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drop table t1, t2;
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set session low_priority_updates=default;
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#
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# Bug #33334 mysqltest_embedded crashes when disconnecting before reap
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#
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connect (con1,localhost,root,,);
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send select benchmark(200, (select sin(1))) > 1000;
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disconnect con1;
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connection default;
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# End of 5.0 tests
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