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102 lines
3.3 KiB
Text
102 lines
3.3 KiB
Text
#
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# Ensure that the number of locks (SELECT FOR UPDATE for example) is
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# added to the number of altered rows when choosing the smallest
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# transaction to kill as a victim when a deadlock is detected.
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# Also transactions what had edited non-transactional tables should
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# be heavier than ones that had not.
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#
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-- source include/have_innodb.inc
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SET storage_engine=InnoDB;
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# we do not really care about what gets output-ed, we are only
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# interested in getting the deadlock resolved according to our
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# expectations
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-- disable_query_log
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-- disable_result_log
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-- disable_warnings
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DROP TABLE IF EXISTS t1, t2, t3, t4, t5_nontrans;
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-- enable_warnings
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# we will create a simple deadlock with t1, t2 and two connections
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CREATE TABLE t1 (a INT);
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CREATE TABLE t2 (a INT);
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# auxiliary table with a bulk of rows which will be locked by a
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# transaction to increase its weight
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CREATE TABLE t3 (a INT);
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# auxiliary empty table which will be inserted by a
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# transaction to increase its weight
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CREATE TABLE t4 (a INT);
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# auxiliary non-transactional table which will be edited by a
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# transaction to tremendously increase its weight
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CREATE TABLE t5_nontrans (a INT) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (1);
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INSERT INTO t2 VALUES (1);
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# insert a lot of rows in t3
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INSERT INTO t3 VALUES (1);
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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INSERT INTO t3 SELECT * FROM t3;
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# test locking weight
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-- let $con1_extra_sql =
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-- let $con1_extra_sql_present = 0
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-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE
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-- let $con2_extra_sql_present = 1
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-- let $con1_should_be_rolledback = 1
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-- source include/innodb_trx_weight.inc
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-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1)
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-- let $con1_extra_sql_present = 1
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-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE
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-- let $con2_extra_sql_present = 1
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-- let $con1_should_be_rolledback = 1
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-- source include/innodb_trx_weight.inc
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-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1), (1), (1), (1)
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-- let $con1_extra_sql_present = 1
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-- let $con2_extra_sql = SELECT * FROM t3 FOR UPDATE
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-- let $con2_extra_sql_present = 1
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-- let $con1_should_be_rolledback = 0
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-- source include/innodb_trx_weight.inc
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# test weight when non-transactional tables are edited
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-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1)
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-- let $con1_extra_sql_present = 1
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-- let $con2_extra_sql =
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-- let $con2_extra_sql_present = 0
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-- let $con1_should_be_rolledback = 0
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-- source include/innodb_trx_weight.inc
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-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1)
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-- let $con1_extra_sql_present = 1
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-- let $con2_extra_sql = INSERT INTO t5_nontrans VALUES (1)
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-- let $con2_extra_sql_present = 1
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-- let $con1_should_be_rolledback = 1
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-- source include/innodb_trx_weight.inc
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-- let $con1_extra_sql = INSERT INTO t4 VALUES (1), (1), (1)
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-- let $con1_extra_sql = $con1_extra_sql; INSERT INTO t5_nontrans VALUES (1)
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-- let $con1_extra_sql_present = 1
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-- let $con2_extra_sql = INSERT INTO t5_nontrans VALUES (1)
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-- let $con2_extra_sql_present = 1
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-- let $con1_should_be_rolledback = 0
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-- source include/innodb_trx_weight.inc
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DROP TABLE t1, t2, t3, t4, t5_nontrans;
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