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MDEV-24547 Update fails when online alter does rollback due to MDL time out

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When online alter rollbacks due to MDL time out, it doesn't mark the
index online status as ONLINE_INDEX_ABORTED. Concurrent update fails
to update the secondary index while building the entry.
InnoDB should check the online status of the secondary index before
building the secondary index entry.

Reviewed-by: Marko Mäkelä
This commit is contained in:
Thirunarayanan Balathandayuthapani 2021-01-11 15:23:09 +05:30
commit 479b4214fa
4 changed files with 87 additions and 2 deletions
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32
mysql-test/suite/innodb/t/alter_mdl_timeout.test Normal file
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--source include/have_innodb.inc
--source include/have_debug.inc
create table t1(f1 char(10), f2 char(10) not null, f3 int not null,
f4 int not null, primary key(f3))engine=innodb;
insert into t1 values('a','a', 1, 1), ('b','b', 2, 2), ('c', 'c', 3, 3), ('d', 'd', 4, 4);
SET DEBUG_SYNC="row_merge_after_scan SIGNAL con1_start WAIT_FOR con1_insert";
SET DEBUG_SYNC="innodb_commit_inplace_alter_table_wait SIGNAL con1_wait WAIT_FOR con1_update";
send ALTER TABLE t1 ADD UNIQUE INDEX(f1(3), f4), ADD UNIQUE INDEX(f2), ALGORITHM=INPLACE;
connect(con1,localhost,root,,,);
SET DEBUG_SYNC="now WAIT_FOR con1_start";
begin;
INSERT INTO t1 VALUES('e','e',5, 5);
SET DEBUG_SYNC="now SIGNAL con1_insert";
SET DEBUG_SYNC="now WAIT_FOR con1_wait";
SET DEBUG_SYNC="before_row_upd_sec_new_index_entry SIGNAL con1_update WAIT_FOR alter_rollback";
SEND UPDATE t1 set f4 = 10 order by f1 desc limit 2;
connection default;
--error ER_LOCK_WAIT_TIMEOUT
reap;
SET DEBUG_SYNC="now SIGNAL alter_rollback";
connection con1;
reap;
commit;
connection default;
disconnect con1;
DROP TABLE t1;
SET DEBUG_SYNC="RESET";