diff options
Diffstat (limited to 'mysql-test/suite/innodb/t/innodb_trx_weight.test')
-rw-r--r-- | mysql-test/suite/innodb/t/innodb_trx_weight.test | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/t/innodb_trx_weight.test b/mysql-test/suite/innodb/t/innodb_trx_weight.test new file mode 100644 index 00000000..819f05f3 --- /dev/null +++ b/mysql-test/suite/innodb/t/innodb_trx_weight.test @@ -0,0 +1,106 @@ +# +# Ensure that the number of locks (SELECT FOR UPDATE for example) is +# added to the number of altered rows when choosing the smallest +# transaction to kill as a victim when a deadlock is detected. +# Also transactions what had edited non-transactional tables should +# be heavier than ones that had not. +# + +-- source include/have_innodb.inc + +SET default_storage_engine=InnoDB; + +# we do not really care about what gets printed, we are only +# interested in getting the deadlock resolved according to our +# expectations +-- disable_query_log +-- disable_result_log + +# we want to use "-- eval statement1; statement2" which does not work with +# prepared statements. Because this test should not behave differently with +# or without prepared statements we disable them so the test does not fail +# if someone runs ./mysql-test-run.pl --ps-protocol +-- disable_ps_protocol + +# we will create a simple deadlock with t1, t2 and two connections +CREATE TABLE t1 (a INT); +CREATE TABLE t2 (a INT); + +# auxiliary table with a bulk of rows which will be locked by a +# transaction to increase its weight +CREATE TABLE t3 (a INT); + +# auxiliary empty table which will be inserted by a +# transaction to increase its weight +CREATE TABLE t4 (a INT); + +# auxiliary non-transactional table which will be edited by a +# transaction to tremendously increase its weight +CREATE TABLE t5_nontrans (a INT) ENGINE=MyISAM; + +INSERT INTO t1 VALUES (1); +INSERT INTO t2 VALUES (1); +# insert a lot of rows in t3 +INSERT INTO t3 VALUES (1); +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; +INSERT INTO t3 SELECT * FROM t3; + +# test locking weight + +-- let $con1_extra_sql = +-- let $con1_extra_sql_present = 0 +-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE +-- let $con2_extra_sql_present = 1 +-- let $con1_should_be_rolledback = 1 +-- source include/innodb_trx_weight.inc + +-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1) +-- let $con1_extra_sql_present = 1 +-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE +-- let $con2_extra_sql_present = 1 +-- let $con1_should_be_rolledback = 1 +-- source include/innodb_trx_weight.inc + +-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1), (1), (1), (1) +-- let $con1_extra_sql_present = 1 +-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE +-- let $con2_extra_sql_present = 1 +-- let $con1_should_be_rolledback = 1 +-- source include/innodb_trx_weight.inc + +# test weight when non-transactional tables are edited + +-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1) +-- let $con1_extra_sql_present = 1 +-- let $con2_extra_sql = +-- let $con2_extra_sql_present = 0 +-- let $con1_should_be_rolledback = 0 +-- source include/innodb_trx_weight.inc + +-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1) +-- let $con1_extra_sql_present = 1 +-- let $con2_extra_sql = INSERT INTO t5_nontrans VALUES (1) +-- let $con2_extra_sql_present = 1 +-- let $con1_should_be_rolledback = 1 +-- source include/innodb_trx_weight.inc + +-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1) +-- let $con1_extra_sql = $con1_extra_sql; INSERT INTO t5_nontrans VALUES (1) +-- let $con1_extra_sql_present = 1 +-- let $con2_extra_sql = INSERT INTO t5_nontrans VALUES (1) +-- let $con2_extra_sql_present = 1 +-- let $con1_should_be_rolledback = 0 +-- source include/innodb_trx_weight.inc + +DROP TABLE t1, t2, t3, t4, t5_nontrans; + +call mtr.add_suppression("Deadlock found when trying to get lock; try restarting transaction"); |