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mariadb/mysql-test/t/innodb_bug38231.test
Sergey Vojtovich a10d33386f Applying InnoDB snapshot
Detailed revision comments:

r6785 | vasil | 2010-03-10 09:04:38 +0200 (Wed, 10 Mar 2010) | 11 lines
branches/5.1:

Add the missing --reap statements in innodb_bug38231.test. Probably MySQL
enforced the presence of those recently and the test started failing like:

  main.innodb_bug38231                     [ fail ]
          Test ended at 2010-03-10 08:48:32
  
  CURRENT_TEST: main.innodb_bug38231
  mysqltest: At line 49: Cannot run query on connection between send and reap

r6788 | vasil | 2010-03-10 10:53:21 +0200 (Wed, 10 Mar 2010) | 8 lines
branches/5.1:

In innodb_bug38231.test: replace the fragile sleep 0.2 that depends on timing
with a more robust condition which waits for the TRUNCATE and LOCK commands
to appear in information_schema.processlist. This could also break if there
are other sessions executing the same SQL commands, but there are none during
the execution of the mysql test.
2010-03-24 18:51:57 +04:00

98 lines
1.9 KiB
Plaintext

#
# Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK
# http://bugs.mysql.com/38231
#
-- source include/have_innodb.inc
SET storage_engine=InnoDB;
# we care only that the following SQL commands do not crash the server
-- disable_query_log
-- disable_result_log
DROP TABLE IF EXISTS bug38231;
CREATE TABLE bug38231 (a INT);
-- connect (con1,localhost,root,,)
-- connect (con2,localhost,root,,)
-- connect (con3,localhost,root,,)
-- connection con1
SET autocommit=0;
LOCK TABLE bug38231 WRITE;
-- connection con2
SET autocommit=0;
-- send
LOCK TABLE bug38231 WRITE;
-- connection con3
SET autocommit=0;
-- send
LOCK TABLE bug38231 WRITE;
-- connection default
-- send
TRUNCATE TABLE bug38231;
-- connection con1
# Wait for TRUNCATE and the other two LOCKs to be executed; without this,
# sometimes UNLOCK executes before them. We assume there are no other
# sessions executing at the same time with the same SQL commands.
let $wait_condition =
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE info = 'TRUNCATE TABLE bug38231';
-- source include/wait_condition.inc
let $wait_condition =
SELECT COUNT(*) = 2 FROM information_schema.processlist
WHERE info = 'LOCK TABLE bug38231 WRITE';
-- source include/wait_condition.inc
# the above enables query log, re-disable it
-- disable_query_log
# this crashes the server if the bug is present
UNLOCK TABLES;
# clean up
-- connection con2
-- reap
UNLOCK TABLES;
-- connection con3
-- reap
UNLOCK TABLES;
-- connection default
-- reap
-- disconnect con1
-- disconnect con2
-- disconnect con3
# test that TRUNCATE works with with row-level locks
-- enable_query_log
-- enable_result_log
INSERT INTO bug38231 VALUES (1), (10), (300);
-- connect (con4,localhost,root,,)
-- connection con4
SET autocommit=0;
SELECT * FROM bug38231 FOR UPDATE;
-- connection default
TRUNCATE TABLE bug38231;
-- connection con4
COMMIT;
-- connection default
-- disconnect con4
DROP TABLE bug38231;