diff options
Diffstat (limited to 'mysql-test/t/handler.test')
| -rw-r--r-- | mysql-test/t/handler.test | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/mysql-test/t/handler.test b/mysql-test/t/handler.test index 55936e44b32..bf18b8da941 100644 --- a/mysql-test/t/handler.test +++ b/mysql-test/t/handler.test @@ -3,8 +3,11 @@ # test of HANDLER ... # +# should work in embedded server after mysqltest is fixed +-- source include/not_embedded.inc + --disable_warnings -drop table if exists t1; +drop table if exists t1,t3,t4,t5; --enable_warnings create table t1 (a int, b char(10), key a(a), key b(a,b)); @@ -377,3 +380,50 @@ connection default; drop table t1; # End of 4.1 tests + +# +# Addendum to Bug#14397 - OPTIMIZE TABLE with an open HANDLER causes a crash +# Show that DROP TABLE can no longer deadlock against +# FLUSH TABLES WITH READ LOCK. This is a 5.0 issue. +# +create table t1 (c1 int); +insert into t1 values (14397); +flush tables with read lock; +# The thread with the global read lock cannot drop the table itself: +--error 1223 +drop table t1; +# +# client 2 +# We need a second connection to try the drop. +# The drop waits for the global read lock to go away. +# Without the addendum fix it locked LOCK_open before entering the wait loop. +connection con2; +--exec echo send the below to another connection, do not wait for the result +send drop table t1; +--sleep 1 +# +# client 1 +# Now we need something that wants LOCK_open. A simple table access which +# opens the table does the trick. +--exec echo proceed with the normal connection +connection default; +# This would hang on LOCK_open without the 5.0 addendum fix. +select * from t1; +# Release the read lock. This should make the DROP go through. +unlock tables; +# +# client 2 +# Read the result of the drop command. +connection con2; +--exec echo read the result from the other connection +reap; +# +# client 1 +# Now back to normal operation. The table should not exist any more. +--exec echo proceed with the normal connection +connection default; +--error 1146 +select * from t1; +# Just to be sure and not confuse the next test case writer. +drop table if exists t1; + |