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# The test verifies a few server/engine recovery option combinations.
# Specifically, MDEV-13437,13438 are concerned with no crashes
# due to a pair of --innodb-read-only=1 --tc-heuristic-recover=ROLLBACK.
#
# The whole test consists of 6 phases, see (lables) echoed.
# Initially the test commits a transaction and in the following proceeds
# throughout the 6 phases.
# Within them the server is shut down and attempted to restart, to succeed
# that in the end.
# All this proves no crashes and effective uncommit of the transaction
# which is asserted.
#
--source include/have_innodb.inc
# The test logics really requires --log-bin.
--source include/have_binlog_format_mixed.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
call mtr.add_suppression("Can't init tc log");
call mtr.add_suppression("Aborting");
# Now take a shapshot of the last time server options.
#
# The "restart" expect-file facility can't be engaged because the server
# having conflicting options may not succeed to boot up.
# Also notice $MYSQLD_CMD is too "static" being unaware of the actual options
# of the last (before shutdown or kill) server run.
# That's why $MYSQLD_LAST_CMD that allows for the server new start
# with more options appended to a stub set which is settled at this very point.
--let $mysqld_stub_cmd= $MYSQLD_LAST_CMD
--let $error_log= $MYSQLTEST_VARDIR/log/mysqld.1.err
--let SEARCH_FILE= $error_log
set debug_sync='RESET';
CREATE TABLE t1 (i INT) ENGINE=InnoDB;
FLUSH TABLES; # we need the table post crash-restart, see MDEV-8841.
SET @@global.innodb_flush_log_at_trx_commit=1;
# Run transaction in a separate "prey" connection
--connect (con1,localhost,root,,)
# The signal won't arrive though
set debug_sync='ha_commit_trans_after_prepare WAIT_FOR go';
--send INSERT INTO t1 VALUES (1);
--let $restart_parameters= --innodb-force-recovery=3
--echo *** (1) the server is killed and (2) restarted with $restart_parameters
--connection default
--let $table= information_schema.processlist
--let $where= where state = 'debug sync point: ha_commit_trans_after_prepare'
--let $wait_condition= SELECT count(*) = 1 FROM $table $where
--source include/wait_condition.inc
--let $shutdown_timeout= 0
--source include/restart_mysqld.inc
#
# Stop and try to restart the server with $restart_parameters, which
# will neither succeed not conduct any rollback because of read-only true.
# FIXME: MDEV-12700 Allow innodb_read_only_mode startup without prior
# slow shutdown.
--echo *** (3) Shut down
SET GLOBAL innodb_fast_shutdown=0;
--let $shutdown_timeout=
--source include/shutdown_mysqld.inc
# the --innodb-force-recovery=3 restart above must leave the following trace:
--let SEARCH_PATTERN= was in the XA prepared state
--source include/search_pattern_in_file++.inc
--let $restart_parameters= --innodb-force-recovery=0 --innodb-read-only=1 --tc-heuristic-recover=ROLLBACK --debug=d,info
--echo *** (4) restart with conflicing recovery options: $restart_parameters.
--source include/fail_start_mysqld.inc
--let SEARCH_PATTERN= \[ERROR\] Can\'t init tc log
--source include/search_pattern_in_file++.inc
# The transaction is left intact which can be proved in the dbug mode with
--echo *** the following search MUST report NOT FOUND into the result file!
--let SEARCH_PATTERN= info: rollback xid
--source include/search_pattern_in_file++.inc
--let $restart_parameters= --innodb-force-recovery=0 --innodb-read-only=0 --tc-heuristic-recover=ROLLBACK --debug=d,info
--echo *** (5) restart with non-conflicing recovery options: $restart_parameters
--source include/fail_start_mysqld.inc
# Check that the server won't complete initialization due to the
# heuristic option.
--let SEARCH_PATTERN= \[ERROR\] Can\'t init tc log
--source include/search_pattern_in_file++.inc
# Conversely, in dbug mode this time the log witnesses the transaction
# is rolled back.
--echo *** the following search MUST report YES FOUND into the result file!
--let SEARCH_PATTERN= info: rollback xid
--source include/search_pattern_in_file++.inc
--let $restart_parameters= --innodb-force-recovery=0
--echo *** (6) The server restarts with $restart_parameters and stably now.
--source include/start_mysqld.inc
# Another prove of (5) rollback
--echo *** Table must be empty:
SELECT * FROM t1;
#
# Cleanup
#
DROP TABLE t1;
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