mariadb/mysql-test/suite/encryption/r/innodb_encrypt_log.result
Marko Mäkelä 4c50120d14 MDEV-23474 InnoDB fails to restart after SET GLOBAL innodb_log_checksums=OFF
Regretfully, the parameter innodb_log_checksums was introduced
in MySQL 5.7.9 (the first GA release of that series) by
mysql/mysql-server@af0acedd88
which partly replaced a parameter that had been introduced in 5.7.8
mysql/mysql-server@22ba38218e
as innodb_log_checksum_algorithm.

Given that the CRC-32C operations are accelerated on many processor
implementations (AMD64 with SSE4.2; since MDEV-22669 also on IA-32
with SSE4.2, POWER 8 and later, ARMv8 with some extensions)
and by lookup tables when only generic SISD instructions are available,
there should be no valid reason to disable checksums.

In MariaDB 10.5.2, as a preparation for MDEV-12353, MDEV-19543 deprecated
and ignored the parameter innodb_log_checksums altogether. This should
imply that after a clean shutdown with innodb_log_checksums=OFF one
cannot upgrade to MariaDB Server 10.5 at all.

Due to these problems, let us deprecate the parameter innodb_log_checksums
and honor it only during server startup.
The command SET GLOBAL innodb_log_checksums will always set the
parameter to ON.
2020-08-18 16:46:07 +03:00

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#
# MDEV-9011: Redo log encryption does not work
#
#
# MDEV-9422 Encrypted redo log checksum errors
# on restart after killing busy server instance
#
SET GLOBAL innodb_log_checksums=0;
Warnings:
Warning 138 innodb_log_checksums is deprecated and has no effect outside recovery
SELECT @@global.innodb_log_checksums;
@@global.innodb_log_checksums
1
CREATE TABLE t0 (
pk bigint auto_increment,
col_int int,
col_int_key int,
col_char char(12),
col_char_key char(12),
primary key (pk),
key (col_int_key),
key (col_char_key)
) ENGINE=InnoDB ENCRYPTED=YES ENCRYPTION_KEY_ID=1;
CREATE TEMPORARY TABLE t LIKE t0;
Warnings:
Warning 1478 Ignoring encryption parameter during temporary table creation.
INSERT INTO t VALUES
(NULL,1,1,'private','secret'),(NULL,2,2,'sacred','success'),
(NULL,3,3,'story','secure'),(NULL,4,4,'security','sacrament');
SET GLOBAL innodb_change_buffering=none;
SET GLOBAL innodb_flush_log_at_trx_commit=1;
INSERT INTO t0
SELECT NULL, t1.col_int, t1.col_int_key, t1.col_char, t1.col_char_key
FROM t t1, t t2, t t3, t t4, t t5;
# Kill the server
# ibdata1 expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)/ in ibdata1
# t0.ibd expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)/ in t0.ibd
# ib_logfile0 expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)/ in ib_logfile0
# Restart without redo log encryption
SELECT COUNT(*) FROM t0;
COUNT(*)
1024
CHECK TABLE t0;
Table Op Msg_type Msg_text
test.t0 check status OK
SET GLOBAL innodb_flush_log_at_trx_commit=1;
INSERT INTO t0 VALUES(NULL, 5, 5, 'public', 'gossip');
# Kill the server
# ib_logfile0 expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)/ in ib_logfile0
# ib_logfile0 expecting FOUND
FOUND 1 /(public|gossip).*/ in ib_logfile0
# ibdata1 expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)|public|gossip/ in ibdata1
# t0.ibd expecting NOT FOUND
NOT FOUND /private|secret|sacr(ed|ament)|success|story|secur(e|ity)|public|gossip/ in t0.ibd
SELECT COUNT(*) FROM t0;
COUNT(*)
1025
CHECK TABLE t0;
Table Op Msg_type Msg_text
test.t0 check status OK
DROP TABLE t0;