diff options
Diffstat (limited to '')
| -rw-r--r-- | mysql-test/suite/innodb/t/innodb-timeout.test | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/t/innodb-timeout.test b/mysql-test/suite/innodb/t/innodb-timeout.test new file mode 100644 index 00000000..0f8bbbec --- /dev/null +++ b/mysql-test/suite/innodb/t/innodb-timeout.test @@ -0,0 +1,200 @@ +# Save the initial number of concurrent sessions. +--source include/count_sessions.inc +--source include/have_innodb.inc + +let $initial_timeout=`select @@innodb_lock_wait_timeout`; +set global innodb_lock_wait_timeout=42; + +connect (a,localhost,root,,); +connect (b,localhost,root,,); + +connection a; +select @@innodb_lock_wait_timeout; +set innodb_lock_wait_timeout=1; +select @@innodb_lock_wait_timeout; + +connection b; +let $connection_b_id=`SELECT CONNECTION_ID()`; +select @@innodb_lock_wait_timeout; +set global innodb_lock_wait_timeout=347; +select @@innodb_lock_wait_timeout; +set innodb_lock_wait_timeout=10; +select @@innodb_lock_wait_timeout; + +connect (c,localhost,root,,); +connection c; + +select @@innodb_lock_wait_timeout; + +disconnect c; +--source include/wait_until_disconnected.inc + +connection a; +--replace_result $connection_b_id <connection_b_id> +eval SET @connection_b_id = $connection_b_id; +create table t1(a int primary key)engine=innodb; +begin; +insert into t1 values(1),(2),(3); + +connection b; +--send +select * from t1 for update; + +# Observation on information_schema.processlist (2010-12 mysql-5.5) +# ----------------------------------------------------------------- +# As soon as the server started the execution of the +# connection a: --send select ... for update +# High parallel load could delay this up to two seconds. +# and before either +# - the innodb_lock_wait_timeout was exceeded +# -> connection b reap gets ER_LOCK_WAIT_TIMEOUT +# or +# - connection a commits, the lock disappears and the statement +# of connection b finishes +# -> connection b reap gets success + result set +# we see within information_schema.processlist for connection b a row +# command state info +# Query Sending data select * from t1 for update +# The highest time value seen was @@innodb_lock_wait_timeout + 1. +# Please note that there is unfortunately nothing which says +# that we are just waiting for a lock. + +connection a; +# In order to ensure that the execution of +# connection b: select * from t1 for update +# has really started and is most probably waiting for the lock now we poll on +# information_schema.processlist. +# Also our current session innodb_lock_wait_timeout of 10 seconds should big +# enough to prevent that connection b ends up with getting ER_LOCK_WAIT_TIMEOUT. +# +let $wait_timeout= 10; +let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist +WHERE id = @connection_b_id AND INFO = 'select * from t1 for update'; +--source include/wait_condition.inc +commit; + +connection b; +reap; + +connection a; +begin; +insert into t1 values(4); + +connection b; +set innodb_lock_wait_timeout=3; +# 3 seconds should be big enough that the wait routine of connection a will +# hit the time span where our next statement is visible within the +# information_schema.processlist. +--send +select * from t1 for update; + +connection a; +# Wait till the execution of the connection b statement was started. +let $wait_timeout= 10; +let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist +WHERE id = @connection_b_id AND INFO = 'select * from t1 for update'; +--source include/wait_condition.inc +# Wait till the execution of the connection b statement has ended. +let $wait_timeout= 10; +let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist +WHERE id = @connection_b_id AND INFO IS NULL; +--source include/wait_condition.inc +# Give "commit" though this must be too late for the statement of connection b. +commit; + +connection b; +--error ER_LOCK_WAIT_TIMEOUT +reap; + +disconnect b; +--source include/wait_until_disconnected.inc + +connection a; +disconnect a; +--source include/wait_until_disconnected.inc + +connection default; +drop table t1; +--replace_result $initial_timeout <initial_timeout> +eval set global innodb_lock_wait_timeout=$initial_timeout; + +--echo # +--echo # MDEV-11379 - AliSQL: [Feature] Issue#8: SELECT FOR UPDATE WAIT +--echo # +CREATE TABLE t1 (c1 INT, c2 INT) ENGINE=InnoDB; +INSERT INTO t1 (c1,c2) values (1,1),(2,2),(3,3),(4,4); + +# Not supported in view/sp +--error ER_VIEW_SELECT_CLAUSE +CREATE VIEW v1 AS SELECT * FROM t1 WHERE c1=4 FOR UPDATE NOWAIT; +--error ER_VIEW_SELECT_CLAUSE +CREATE VIEW v1 AS SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 0; +--error ER_SP_BADSTATEMENT +CREATE PROCEDURE p1() SELECT * FROM t1 WHERE c1=4 FOR UPDATE NOWAIT; +--error ER_SP_BADSTATEMENT +CREATE PROCEDURE p1() SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 0; + +connect(con1,localhost,root,,); +LOCK TABLE t1 WRITE; + +connect(con2,localhost,root,,); +# The following statement should hang because con1 is locking the table +--error ER_LOCK_WAIT_TIMEOUT +SELECT * FROM t1 WHERE c1=4 FOR UPDATE NOWAIT; +--error ER_LOCK_WAIT_TIMEOUT +SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 0; +PREPARE stmt FROM 'SELECT * FROM t1 WHERE c1=4 FOR UPDATE NOWAIT'; +--error ER_LOCK_WAIT_TIMEOUT +EXECUTE stmt; +DEALLOCATE PREPARE stmt; +PREPARE stmt FROM 'SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 0'; +--error ER_LOCK_WAIT_TIMEOUT +EXECUTE stmt; +DEALLOCATE PREPARE stmt; + +connection con1; +INSERT INTO t1 VALUES(5,5); +UNLOCK TABLES; +set AUTOCOMMIT=0; +--disable_result_log +SELECT * FROM t1 WHERE c1=4 FOR UPDATE; +--enable_result_log + +connection con2; +set AUTOCOMMIT=0; +SET INNODB_LOCK_WAIT_TIMEOUT=1; +--error ER_LOCK_WAIT_TIMEOUT +SELECT * FROM t1 WHERE c1=4 FOR UPDATE; +--error ER_LOCK_WAIT_TIMEOUT +SELECT * FROM t1 WHERE c1=4 FOR UPDATE NOWAIT; +--error ER_LOCK_WAIT_TIMEOUT +SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 0; + +connection con1; +UPDATE t1 SET c2=5 WHERE c1=4; +COMMIT; +set AUTOCOMMIT=0; +SELECT * FROM t1 WHERE c1=4 FOR UPDATE; + +connection con2; +set AUTOCOMMIT=0; +SET INNODB_LOCK_WAIT_TIMEOUT=1; +--send +--disable_result_log +SELECT * FROM t1 WHERE c1=4 FOR UPDATE WAIT 10; + +connection con1; +COMMIT; + +connection con2; +--reap + + +disconnect con1; +disconnect con2; + +# clear +connection default; +DROP TABLE t1; + +--source include/wait_until_count_sessions.inc |