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5a1f821b93
ha_innobase::extra(): Do not invoke log_buffer_flush_to_disk() if high_level_read_only holds. log_buffer_flush_to_disk(): Remove an assertion that duplicates one at the start of log_write_up_to().
47 lines
1.5 KiB
Text
47 lines
1.5 KiB
Text
--source include/have_innodb.inc
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# need to restart server
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--source include/not_embedded.inc
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--connect(con1, localhost, root)
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CREATE TABLE t(a INT PRIMARY KEY) ENGINE=InnoDB;
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INSERT INTO t VALUES(1);
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BEGIN;
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# Generate insert_undo log.
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INSERT INTO t VALUES(2);
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# Generate update_undo log.
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DELETE FROM t WHERE a=2;
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--connection default
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--echo # Normal MariaDB shutdown would roll back the above transaction.
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--echo # We want the transaction to remain open, so we will kill the server
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--echo # after ensuring that any non-transactional files are clean.
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FLUSH TABLES;
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--echo # Ensure that the above incomplete transaction becomes durable.
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SET GLOBAL innodb_flush_log_at_trx_commit=1;
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BEGIN;
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INSERT INTO t VALUES(0);
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DELETE FROM t WHERE a=0;
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COMMIT;
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--let $restart_parameters= --innodb-force-recovery=3
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--let $shutdown_timeout= 0
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--source include/restart_mysqld.inc
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--let $shutdown_timeout= 30
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--disconnect con1
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SELECT * FROM t;
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SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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SELECT * FROM t;
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UPDATE t SET a=3 WHERE a=1;
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--let $restart_parameters= --innodb-read-only
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--source include/restart_mysqld.inc
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--echo # Starting with MariaDB 10.2, innodb_read_only implies READ UNCOMMITTED.
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--echo # In earlier versions, this would return the last committed version
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--echo # (empty table)!
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SELECT * FROM t;
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SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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SELECT * FROM t;
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SET GLOBAL innodb_max_purge_lag_wait=0;
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INSERT INTO mysql.innodb_index_stats
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SELECT * FROM mysql.innodb_index_stats LIMIT 0;
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--let $restart_parameters=
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--source include/restart_mysqld.inc
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SELECT * FROM t;
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DROP TABLE t;
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