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MDEV-25503 InnoDB hangs on startup during recovery

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InnoDB startup hangs if a DDL transaction needs to be
rolled back and a recovered transaction on statistics
tables exists. In that case, InnoDB should rollback
the transaction which holds locks on innodb_table_stats
or innodb_index_stats during trx_rollback_or_clean_recovered().
This commit is contained in:
Thirunarayanan Balathandayuthapani
2021-04-27 16:46:54 +05:30
parent 2b0d5b78c2
commit b862377c3e
7 changed files with 69 additions and 2 deletions
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15
mysql-test/suite/innodb/r/innodb-alter-tempfile.result
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@ -50,3 +50,18 @@ Warnings:
Warning 1082 InnoDB: Table test/t1 contains 1 indexes inside InnoDB, which is different from the number of indexes 2 defined in the MariaDB
Warning 1082 InnoDB: Table test/t1 contains 1 indexes inside InnoDB, which is different from the number of indexes 2 defined in the MariaDB
DROP TABLE t1;
#
# MDEV-25503 InnoDB hangs on startup during recovery
#
CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB STATS_PERSISTENT=1;
connect con1,localhost,root,,;
BEGIN;
DELETE FROM mysql.innodb_table_stats;
connect con2,localhost,root,,;
SET DEBUG_SYNC='inplace_after_index_build SIGNAL blocked WAIT_FOR ever';
ALTER TABLE t1 FORCE;
connection default;
SET DEBUG_SYNC='now WAIT_FOR blocked';
SELECT * FROM t1;
a
DROP TABLE t1;