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MDEV-28122 Optimize table crash while applying online log

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- InnoDB fails to check the overflow buffer while applying
the operation to the table that was rebuilt. This is caused
by commit 3cef4f8f0fc88ae5bfae4603d8d600ec84cc70a9 (MDEV-515).
This commit is contained in:
Thirunarayanan Balathandayuthapani 2023-10-16 20:17:09 +05:30
parent cca9547892
commit ee5cadd5c8
3 changed files with 55 additions and 5 deletions
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23
mysql-test/suite/innodb/r/innodb-table-online.result
View File

@ -470,6 +470,29 @@ SET DEBUG_SYNC="now SIGNAL con1_signal";
connection con1;
DROP TABLE t1;
connection default;
#
# MDEV-28122 Optimize table crash while applying online log
#
CREATE TABLE t1(f1 INT NOT NULL, f2 INT NOT NULL,
f3 CHAR(200), f4 CHAR(200),
f5 VARCHAR(87), PRIMARY KEY(f1))ENGINE=InnoDB;
INSERT INTO t1 VALUES(6000, 6000, "InnoDB",
"MariaDB", repeat('a', 87));
SET DEBUG_SYNC="inplace_after_index_build SIGNAL dml_start WAIT_FOR dml_commit";
ALTER TABLE t1 FORCE;
connection con1;
SET DEBUG_SYNC="now WAIT_FOR dml_start";
BEGIN;
INSERT INTO t1 SELECT seq, seq, "IDB", "MDB", repeat('a', 87) FROM seq_1_to_127;
INSERT INTO t1 VALUES(128, 128, "IDB", "MDB", repeat('a', 86));
INSERT INTO t1 VALUES(129, 129, "idb", "mdb", repeat('a', 2));
COMMIT;
SET DEBUG_SYNC="now SIGNAL dml_commit";
connection default;
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
DROP TABLE t1;
SET DEBUG_SYNC=RESET;
disconnect con1;
SET GLOBAL innodb_file_per_table = @global_innodb_file_per_table_orig;

27
mysql-test/suite/innodb/t/innodb-table-online.test
View File

@ -2,6 +2,7 @@
--source include/innodb_encrypt_log.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
--source include/have_sequence.inc
let $innodb_metrics_select=
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
@ -440,6 +441,32 @@ connection con1;
reap;
DROP TABLE t1;
connection default;
--echo #
--echo # MDEV-28122 Optimize table crash while applying online log
--echo #
CREATE TABLE t1(f1 INT NOT NULL, f2 INT NOT NULL,
f3 CHAR(200), f4 CHAR(200),
f5 VARCHAR(87), PRIMARY KEY(f1))ENGINE=InnoDB;
INSERT INTO t1 VALUES(6000, 6000, "InnoDB",
"MariaDB", repeat('a', 87));
SET DEBUG_SYNC="inplace_after_index_build SIGNAL dml_start WAIT_FOR dml_commit";
SEND ALTER TABLE t1 FORCE;
connection con1;
SET DEBUG_SYNC="now WAIT_FOR dml_start";
BEGIN;
INSERT INTO t1 SELECT seq, seq, "IDB", "MDB", repeat('a', 87) FROM seq_1_to_127;
INSERT INTO t1 VALUES(128, 128, "IDB", "MDB", repeat('a', 86));
INSERT INTO t1 VALUES(129, 129, "idb", "mdb", repeat('a', 2));
COMMIT;
SET DEBUG_SYNC="now SIGNAL dml_commit";
connection default;
reap;
CHECK TABLE t1;
DROP TABLE t1;
SET DEBUG_SYNC=RESET;
disconnect con1;

10
storage/innobase/row/row0log.cc
View File

@ -2167,6 +2167,11 @@ row_log_table_apply_op(
*error = DB_SUCCESS;
/* 3 = 1 (op type) + 1 (extra_size) + at least 1 byte payload */
if (mrec + 3 >= mrec_end) {
return(NULL);
}
const bool is_instant = log->is_instant(dup->index);
const mrec_t* const mrec_start = mrec;
@ -2214,11 +2219,6 @@ row_log_table_apply_op(
break;
case ROW_T_DELETE:
/* 1 (extra_size) + at least 1 (payload) */
if (mrec + 2 >= mrec_end) {
return(NULL);
}
extra_size = *mrec++;
ut_ad(mrec < mrec_end);