^^&&^^

Edit File: strict_checksum.test

--echo #
--echo # Bug #20031570 INNODB_CHECKSUM_ALGORITHM VARIABLE LEADS TO CRASHING
--echo #

--source include/have_innodb.inc
--source include/have_debug.inc
# Embedded mode doesn't support restart
--source include/not_embedded.inc

set global innodb_checksum_algorithm=crc32;

# Table is created with crc32 checksum algorithm.
# First few pages have crc32 checksum algorithm

create table t1(f1 int not null primary key)engine=innodb;

# Restart the server to load the table t1 again.
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/my_restart.err;
--source include/shutdown_mysqld.inc

--echo # Restart the server with --log-error
--exec echo "restart:--log-error=$MYSQLTEST_VARDIR/log/my_restart.err" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--enable_reconnect
--source include/wait_until_connected_again.inc
set global innodb_checksum_algorithm=strict_innodb;
set global innodb_limit_optimistic_insert_debug = 2;

call mtr.add_suppression("\\[Warning\\] InnoDB: innodb_checksum_algorithm is set to .* but the page .* contains a valid checksum .*.");

# Load the table t1 content with crc32 checksum pages.
select count(*) from t1;

let SEARCH_PATTERN=\\[Warning\\] InnoDB: innodb_checksum_algorithm is set to "strict_innodb" but the page \\[page id: space=\d+, page number=\d+\\] contains a valid checksum .*. Accepting the page as valid. Change innodb_checksum_algorithm to .* to silently accept such pages or rewrite all pages so that they contain .* checksum.;

--source include/search_pattern_in_file.inc

# Write the records in new pages with innodb checksum format.
insert into t1 values(2),(3),(4);

# Restart the server to load the table t1 again.
--source include/shutdown_mysqld.inc
let SEARCH_FILE = $MYSQLTEST_VARDIR/log/my_restart.err;

--echo # Restart the server with --log-error
--exec echo "restart:--log-error=$SEARCH_FILE" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
--enable_reconnect
--source include/wait_until_connected_again.inc

set global innodb_checksum_algorithm=strict_none;
set global innodb_limit_optimistic_insert_debug = 2;

# Load the table t1 content with crc32, innodb checksum pages.
select count(*) from t1;

let SEARCH_PATTERN=\\[Warning\\] InnoDB: innodb_checksum_algorithm is set to "strict_none" but the page \\[page id: space=\d+, page number=\d+\\] contains a valid checksum .*. Accepting the page as valid. Change innodb_checksum_algorithm to .* to silently accept such pages or rewrite all pages so that they contain .* checksum.;

--source include/search_pattern_in_file.inc

# Write the records in new pages with none checksum format.
insert into t1 values(5),(6),(7);

# Restart the server to load the table t1 again.
--source include/restart_mysqld.inc

# Load the table t1 content with crc32, innodb, none checksum pages.
select count(*) from t1;
drop table t1;
--remove_file $SEARCH_FILE