File: read_only_recovery.test

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--source include/have_innodb.inc
# need to restart server
--source include/not_embedded.inc

--connect(con1, localhost, root)
CREATE TABLE t(a INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t VALUES(1);
BEGIN;
# Generate insert_undo log.
INSERT INTO t VALUES(2);
# Generate update_undo log.
DELETE FROM t WHERE a=2;
--connection default
--echo # Normal MariaDB shutdown would roll back the above transaction.
--echo # We want the transaction to remain open, so we will kill the server
--echo # after ensuring that any non-transactional files are clean.
FLUSH TABLES;
--echo # Ensure that the above incomplete transaction becomes durable.
SET GLOBAL innodb_flush_log_at_trx_commit=1;
BEGIN;
INSERT INTO t VALUES(0);
DELETE FROM t WHERE a=0;
COMMIT;
--let $restart_parameters= --innodb-force-recovery=3
--let $shutdown_timeout= 0
--source include/restart_mysqld.inc
--let $shutdown_timeout= 30
--disconnect con1
SELECT * FROM t;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT * FROM t;
UPDATE t SET a=3 WHERE a=1;
--let $restart_parameters= --innodb-read-only
--source include/restart_mysqld.inc
--echo # Starting with MariaDB 10.2, innodb_read_only implies READ UNCOMMITTED.
--echo # In earlier versions, this would return the last committed version
--echo # (empty table)!
SHOW VARIABLES LIKE "innodb_read_only";
SELECT * FROM t;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT * FROM t;
SET GLOBAL innodb_max_purge_lag_wait=0;
INSERT INTO mysql.innodb_index_stats
SELECT * FROM mysql.innodb_index_stats LIMIT 0;
--echo Test Temp tablespace truncate in read only mode
SET GLOBAL innodb_truncate_temporary_tablespace_now=1;
--let $restart_parameters=
--source include/restart_mysqld.inc
SELECT * FROM t;
DROP TABLE t;