mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 12:02:42 +01:00
163b34fe25
Part of MDEV-5336 Implement LOCK FOR BACKUP The idea is that instead of waiting in close_cached_tables() for all tables to be closed, we instead call flush_tables() that does: - Flush not used objects in table cache to free memory - Collect all tables that are open - Call HA_EXTRA_FLUSH on the objects, to get them into "closed state" - Added HA_EXTRA_FLUSH support to archive and CSV - Added multi-user protection to HA_EXTRA_FLUSH in MyISAM and Aria The benefit compared to old code is: - FTWRL doesn't have to wait for long running read operations or open HANDLER's
25 lines
587 B
Text
25 lines
587 B
Text
--source include/have_archive.inc
|
|
|
|
let $MYSQLD_DATADIR= `SELECT @@datadir`;
|
|
CREATE TABLE t1(a INT) ENGINE=archive;
|
|
INSERT INTO t1 VALUES(1);
|
|
# Works correct if we uncomment next row
|
|
#FLUSH TABLE t1;
|
|
|
|
connect(con1, localhost, root);
|
|
LOCK TABLE t1 READ;
|
|
|
|
connection default;
|
|
FLUSH TABLES WITH READ LOCK;
|
|
copy_file $MYSQLD_DATADIR/test/t1.frm $MYSQLD_DATADIR/test/t2.frm;
|
|
copy_file $MYSQLD_DATADIR/test/t1.ARZ $MYSQLD_DATADIR/test/t2.ARZ;
|
|
UNLOCK TABLES;
|
|
--echo # Must return 1 row
|
|
SELECT * FROM t2;
|
|
SELECT * FROM t1;
|
|
|
|
connection con1;
|
|
UNLOCK TABLES;
|
|
|
|
connection default;
|
|
DROP TABLE t1, t2;
|