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mariadb/mysql-test/t/create-big.test
Jon Olav Hauglid 1c0388a5be Bug#13982017: ALTER TABLE RENAME ENDS UP WITH ERROR 1050 (42S01) 
Fixed by backport of:
    ------------------------------------------------------------
    revno: 3402.50.156
    committer: Jon Olav Hauglid <jon.hauglid@oracle.com>
    branch nick: mysql-trunk-test
    timestamp: Wed 2012-02-08 14:10:23 +0100
    message:
      Bug#13417754 ASSERT IN ROW_DROP_DATABASE_FOR_MYSQL DURING DROP SCHEMA
      
      This assert could be triggered if an InnoDB table was being moved
      to a different database using ALTER TABLE ... RENAME, while this
      database concurrently was being dropped by DROP DATABASE.
      
      The reason for the problem was that no metadata lock was taken
      on the target database by ALTER TABLE ... RENAME.
      DROP DATABASE was therefore not blocked and could remove
      the database while ALTER TABLE ... RENAME was executing. This
      could cause the assert in InnoDB to be triggered.
      
      This patch fixes the problem by taking a IX metadata lock on
      the target database before ALTER TABLE ... RENAME starts
      moving a table to a different database.
      
      Note that this problem did not occur with RENAME TABLE which
      already takes the correct metadata locks.
      
      Also note that this patch slightly changes the behavior of
      ALTER TABLE ... RENAME. Before, the statement would abort and
      return an error if a lock on the target table name could not
      be taken immediately. With this patch, ALTER TABLE ... RENAME
      will instead block and wait until the lock can be taken 
      (or until we get a lock timeout). This also means that it is
      possible to get ER_LOCK_DEADLOCK errors in this situation
      since we allow ALTER TABLE ... RENAME to wait and not just
      abort immediately.
2012-06-01 09:31:24 +02:00

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# Tests for various concurrency-related aspects of CREATE TABLE ... SELECT
# and CREATE TABLE like implementation.
#
# Note that we don't test general CREATE TABLE ... SELECT/LIKE functionality
# here as it is already covered by create.test. We are more interested in
# extreme cases.
#
# This test takes rather long time so let us run it only in --big-test mode
--source include/big_test.inc
# We need the Debug Sync Facility.
--source include/have_debug_sync.inc
# Some of tests below also use binlog to check that statements are
# executed and logged in correct order
--source include/have_binlog_format_mixed_or_statement.inc
# Save the initial number of concurrent sessions.
--source include/count_sessions.inc
# Create auxilliary connections
connect (addconroot1, localhost, root,,);
connect (addconroot2, localhost, root,,);
connect (addconroot3, localhost, root,,);
connection default;
--disable_warnings
drop table if exists t1,t2,t3,t4,t5;
--enable_warnings
set debug_sync='RESET';
#
# Tests for concurrency problems in CREATE TABLE ... SELECT
#
# We introduce delays between various stages of table creation
# and check that other statements dealing with this table cannot
# interfere during those delays.
#
# What happens in situation when other statement messes with
# table to be created before it is created ?
# Concurrent CREATE TABLE
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send create table t1 (j char(5));
connection addconroot2;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "create table t1 (j char(5))";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1;
# Concurrent CREATE TABLE ... SELECT
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send create table t1 select 'Test' as j;
connection addconroot2;
# Wait until the above CREATE TABLE t1 is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "create table t1 select 'Test' as j";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1;
# Concurrent CREATE TABLE LIKE
create table t3 (j char(5));
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send create table t1 like t3;
connection addconroot2;
# Wait until the above CREATE TABLE t1 is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "create table t1 like t3";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1;
# Concurrent RENAME TABLE
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send rename table t3 to t1;
connection addconroot2;
# Wait until the above RENAME TABLE is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "rename table t3 to t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1;
# Concurrent ALTER TABLE RENAME
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send alter table t3 rename to t1
connection addconroot2;
# Wait until the above ALTER TABLE RENAME is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "alter table t3 rename to t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1;
# Concurrent ALTER TABLE RENAME which also adds column
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send alter table t3 rename to t1, add k int
connection addconroot2;
# Wait until the above ALTER TABLE RENAME is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "alter table t3 rename to t1, add k int";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--error ER_TABLE_EXISTS_ERROR
--reap
connection default;
show create table t1;
drop table t1,t3;
# What happens if other statement sneaks in after the table
# creation but before its opening ?
set debug_sync='create_table_select_before_open SIGNAL parked WAIT_FOR go';
connection default;
# Concurrent DROP TABLE
set debug_sync='create_table_select_before_open SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send drop table t1;
connection addconroot2;
# Wait until the above DROP TABLE is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
# Concurrent RENAME TABLE
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send rename table t1 to t2;
connection addconroot2;
# Wait until the above RENAME TABLE is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "rename table t1 to t2";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t2;
# Concurrent SELECT
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send select * from t1;
connection addconroot2;
# Wait until the above SELECT is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "select * from t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t1;
# Concurrent INSERT
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send insert into t1 values (2);
connection addconroot2;
# Wait until the above INSERT is blocked due to CREATE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "insert into t1 values (2)";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
select * from t1;
drop table t1;
# Concurrent CREATE TRIGGER
set @a:=0;
set debug_sync='create_table_select_before_create SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send create trigger t1_bi before insert on t1 for each row set @a:=1;
connection addconroot2;
# Wait until the above CREATE TRIGGER is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "create trigger t1_bi before insert on t1 for each row set @a:=1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
select @a;
drop table t1;
# Okay, now the same tests for the potential gap between open and lock
set debug_sync='create_table_select_before_lock SIGNAL parked WAIT_FOR go';
# Concurrent DROP TABLE
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send drop table t1;
connection addconroot2;
# Wait until the above DROP TABLE is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
# Concurrent RENAME TABLE
set debug_sync='create_table_select_before_lock SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send rename table t1 to t2;
connection addconroot2;
# Wait until the above RENAME TABLE is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "rename table t1 to t2";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t2;
# Concurrent SELECT
set debug_sync='create_table_select_before_lock SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send select * from t1;
connection addconroot2;
# Wait until the above SELECT is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "select * from t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t1;
# Concurrent INSERT
set debug_sync='create_table_select_before_lock SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send insert into t1 values (2);
connection addconroot2;
# Wait until the above INSERT INTO t1 is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "insert into t1 values (2)";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
select * from t1;
drop table t1;
# Concurrent CREATE TRIGGER
set @a:=0;
set debug_sync='create_table_select_before_lock SIGNAL parked WAIT_FOR go';
--send create table t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send create trigger t1_bi before insert on t1 for each row set @a:=1;
connection addconroot2;
# Wait until the above CREATE TRIGGER is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "create trigger t1_bi before insert on t1 for each row set @a:=1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
select @a;
drop table t1;
# Concurrent DROP TABLE
set debug_sync='create_table_select_before_check_if_exists SIGNAL parked WAIT_FOR go';
--send create table if not exists t1 select 1 as i;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send drop table t1;
connection addconroot2;
# Wait until the above DROP TABLE is blocked due to CREATE TABLE
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
# Concurrent CREATE TRIGGER
create table t1 (i int);
set @a:=0;
set debug_sync='create_table_select_before_check_if_exists SIGNAL parked WAIT_FOR go';
--send create table if not exists t1 select 1 as i;
connection addconroot1;
create trigger t1_bi before insert on t1 for each row set @a:=1;
connection default;
--reap
connection default;
select @a;
select * from t1;
drop table t1;
# Tests for possible concurrency issues with CREATE TABLE ... LIKE
#
# Bug #18950 "create table like does not obtain LOCK_open"
# Bug #23667 "CREATE TABLE LIKE is not isolated from alteration by other
# connections"
#
# Again the idea of this test is that we introduce artificial delays on
# various stages of table creation and check that concurrent statements
# for tables from CREATE TABLE ... LIKE are not interfering.
--disable_warnings
drop table if exists t1,t2;
--enable_warnings
set debug_sync='RESET';
# What happens if some statements sneak in right after we have
# acquired locks and opened source table ?
create table t1 (i int);
set debug_sync='create_table_like_after_open SIGNAL parked WAIT_FOR go';
# Reset binlog to have clear start
reset master;
--send create table t2 like t1;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
# DML on source table should be allowed to run concurrently
insert into t1 values (1);
# And DDL should wait
--send drop table t1;
connection addconroot2;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
show create table t2;
drop table t2;
# Let us check that statements were executed/binlogged in correct order
source include/show_binlog_events.inc;
# Now check the gap between table creation and binlogging
create table t1 (i int);
set debug_sync='create_table_like_before_binlog SIGNAL parked WAIT_FOR go';
reset master;
--send create table t2 like t1;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send insert into t2 values (1);
connection addconroot2;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "insert into t2 values (1)";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t2;
set debug_sync='create_table_like_before_binlog SIGNAL parked WAIT_FOR go';
--send create table t2 like t1;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send drop table t2;
connection addconroot2;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t2";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
set debug_sync='create_table_like_before_binlog SIGNAL parked WAIT_FOR go';
--send create table t2 like t1;
connection addconroot1;
set debug_sync='now WAIT_FOR parked';
--send drop table t1;
connection addconroot2;
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "drop table t1";
--source include/wait_condition.inc
set debug_sync='now SIGNAL go';
connection default;
--reap
connection addconroot1;
--reap
connection default;
drop table t2;
disconnect addconroot1;
disconnect addconroot2;
disconnect addconroot3;
set debug_sync='RESET';
source include/show_binlog_events.inc;
# Check that all connections opened by test cases in this file are really
# gone so execution of other tests won't be affected by their presence.
--source include/wait_until_count_sessions.inc
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