91 lines
2.2 KiB
PHP
91 lines
2.2 KiB
PHP
#
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# Some basic sanity tests for deadlock detection.
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#
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--source suite/xengine/include/have_xengine.inc
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set @prior_xengine_lock_wait_timeout = @@xengine_lock_wait_timeout;
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set @prior_xengine_deadlock_detect = @@xengine_deadlock_detect;
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set global xengine_lock_wait_timeout = 100000;
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set global xengine_deadlock_detect = ON;
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create table t (i int primary key);
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create table r1 (id int primary key, value int);
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insert into r1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9),(10,10);
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create table r2 like r1;
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insert into r2 select * from r1;
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# deadlock on scanned locking reads
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connect (con1,localhost,root,,);
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let $con1= `SELECT CONNECTION_ID()`;
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begin;
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update r2 set value=100 where id=9;
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connect (con2,localhost,root,,);
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let $con2= `SELECT CONNECTION_ID()`;
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begin;
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update r1 set value=100 where id=8;
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--send select * from r2 for update;
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connection con1;
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let $wait_condition =
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`SELECT CONCAT('select count(*) = 1 from information_schema.xengine_trx where THREAD_ID = ', '$con2', ' and WAITING_KEY != ""')`;
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--source include/wait_condition.inc
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--error ER_LOCK_DEADLOCK
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select * from r1 for update;
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rollback;
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connection con2;
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--reap;
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rollback;
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connection con1;
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begin;
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insert into t values (1);
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connection con2;
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begin;
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insert into t values (2);
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connect (con3,localhost,root,,);
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begin;
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insert into t values (3);
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connection con1;
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--send select * from t where i = 2 for update
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connection con2;
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let $wait_condition =
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`SELECT CONCAT('select count(*) = 1 from information_schema.xengine_trx where THREAD_ID = ', '$con1', ' and WAITING_KEY != ""')`;
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--source include/wait_condition.inc
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--send select * from t where i = 3 for update
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connection con3;
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let $wait_condition =
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`SELECT CONCAT('select count(*) = 1 from information_schema.xengine_trx where THREAD_ID = ', '$con2', ' and WAITING_KEY != ""')`;
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--source include/wait_condition.inc
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select * from t;
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--error ER_LOCK_DEADLOCK
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insert into t values (4), (1);
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--echo # Transaction should be rolled back
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select * from t;
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rollback;
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connection con2;
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--reap
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rollback;
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connection con1;
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--reap
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rollback;
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connection default;
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disconnect con1;
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disconnect con2;
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disconnect con3;
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set global xengine_lock_wait_timeout = @prior_xengine_lock_wait_timeout;
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set global xengine_deadlock_detect = @prior_xengine_deadlock_detect;
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drop table t,r1,r2;
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