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SET default_storage_engine=InnoDB; # # Test when tablespaces can be found at multiple places # SYS_DATAFILES will refer to the file at alt_dir. # Link File will refer to the file at new_dir. # Tablename Default SYS_DATAFILES Link_File # yyy Yes Yes Yes # nyy No Yes Yes # yny Yes No Yes # yyn Yes Yes No # nyw No Yes WrongFile # nwy No WrongFile Yes # wny WrongFile No Yes # ynw Yes No WrongFile # wyn WrongFile Yes No # ywn Yes WrongFile No # nnn No No No # www WrongFile WrongFile WrongFile # nolink No Yes, No ISL No # set global innodb_file_per_table=on; set global innodb_file_format='Barracuda'; CREATE TABLE yyy (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yyy VALUES (1, 'yyy'); CREATE TABLE nyy (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO nyy VALUES (1, 'nyy'); CREATE TABLE yny (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yny VALUES (1, 'yny'); CREATE TABLE yyn (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yyn VALUES (1, 'yyn'); CREATE TABLE nyw (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO nyw VALUES (1, 'nyw'); CREATE TABLE nwy (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO nwy VALUES (1, 'nwy'); CREATE TABLE wny (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO wny VALUES (1, 'wny'); CREATE TABLE ynw (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO ynw VALUES (1, 'ynw'); CREATE TABLE wyn (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO wyn VALUES (1, 'wyn'); CREATE TABLE ywn (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO ywn VALUES (1, 'ywn'); CREATE TABLE nnn (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO nnn VALUES (1, 'nnn'); CREATE TABLE www (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO www VALUES (1, 'www'); CREATE TABLE nolink (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO nolink VALUES (1, 'no link file'); # # Shutdown the server, copy and remove files. # ---- MYSQLD_DATADIR/test nnn.frm nnn.isl nolink.frm nolink.isl nwy.frm nwy.isl nyw.frm nyw.isl nyy.frm nyy.isl wny.frm wny.isl www.frm www.isl wyn.frm wyn.isl ynw.frm ynw.isl yny.frm yny.isl ywn.frm ywn.isl yyn.frm yyn.isl yyy.frm yyy.isl ---- MYSQL_TMP_DIR/alt_dir/test nnn.ibd nolink.ibd nwy.ibd nyw.ibd nyy.ibd wny.ibd www.ibd wyn.ibd ynw.ibd yny.ibd ywn.ibd yyn.ibd yyy.ibd ---- MYSQL_TMP_DIR/new_dir/test # YYY; Tablespace found in 3 places # NYY; Tablespace found in alt_dir and new_dir # YNY; Tablespace found in default and new_dir # YYN; Tablespace found in default and alt_dir # NYW; Copy the wrong file to new_dir # NWY; Copy the wrong file to alt_dir, good one to new_dir. # WNY; Copy the wrong file to default, good one to new_dir, delete it form alt_dir # YNW; Copy the file to default, wrong one to new_dir, delete it form alt_dir # WYN; Copy the wrong file to default # YWN; Copy the file to default, wrong one to alt_dir # NNN; Delete the tablespace and ISL # WWW; Put the wrong file in all three locations # NOLINK; Delete the ISL file Since remote location is still in SYS_DATAFILES, # it should still be found. And the ISL file should be re-created. # Make a backup of this tablespace to use later. ---- MYSQLD_DATADIR/test nnn.frm nolink.frm nwy.frm nwy.isl nyw.frm nyw.isl nyy.frm nyy.isl wny.frm wny.ibd wny.isl www.frm www.ibd www.isl wyn.frm wyn.ibd wyn.isl ynw.frm ynw.ibd ynw.isl yny.frm yny.ibd yny.isl ywn.frm ywn.ibd ywn.isl yyn.frm yyn.ibd yyn.isl yyy.frm yyy.ibd yyy.isl ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd nolink.ibd.bak nwy.ibd nyw.ibd nyy.ibd www.ibd wyn.ibd ywn.ibd yyn.ibd yyy.ibd ---- MYSQL_TMP_DIR/new_dir/test nwy.ibd nyw.ibd nyy.ibd wny.ibd www.ibd ynw.ibd yny.ibd yyy.ibd # # Start the server and show the tablespaces. # SELECT path FROM information_schema.innodb_sys_datafiles WHERE path LIKE '%test%' ORDER BY space; path MYSQL_TMP_DIR/alt_dir/test/yyy.ibd MYSQL_TMP_DIR/alt_dir/test/nyy.ibd MYSQL_TMP_DIR/alt_dir/test/yny.ibd MYSQL_TMP_DIR/alt_dir/test/yyn.ibd MYSQL_TMP_DIR/alt_dir/test/nyw.ibd MYSQL_TMP_DIR/new_dir/test/nwy.ibd MYSQL_TMP_DIR/new_dir/test/wny.ibd MYSQLD_DATADIR/test/ynw.ibd MYSQL_TMP_DIR/alt_dir/test/wyn.ibd MYSQLD_DATADIR/test/ywn.ibd MYSQL_TMP_DIR/alt_dir/test/nnn.ibd MYSQL_TMP_DIR/alt_dir/test/www.ibd MYSQL_TMP_DIR/alt_dir/test/nolink.ibd SELECT * FROM yyy; ERROR 42S02: Table 'test.yyy' doesn't exist SELECT * FROM nyy; ERROR 42S02: Table 'test.nyy' doesn't exist SELECT * FROM yny; ERROR 42S02: Table 'test.yny' doesn't exist SELECT * FROM yyn; ERROR 42S02: Table 'test.yyn' doesn't exist SELECT * FROM nyw; c1 c2 1 nyw SELECT * FROM nwy; c1 c2 1 nwy SELECT * FROM wny; c1 c2 1 wny SELECT * FROM ynw; c1 c2 1 ynw SELECT * FROM wyn; c1 c2 1 wyn SELECT * FROM ywn; c1 c2 1 ywn SELECT * FROM nnn; ERROR 42S02: Table 'test.nnn' doesn't exist SELECT * FROM www; ERROR 42S02: Table 'test.www' doesn't exist SELECT * FROM nolink; c1 c2 1 no link file SHOW CREATE TABLE yyy; ERROR 42S02: Table 'test.yyy' doesn't exist SHOW CREATE TABLE nyy; ERROR 42S02: Table 'test.nyy' doesn't exist SHOW CREATE TABLE yny; ERROR 42S02: Table 'test.yny' doesn't exist SHOW CREATE TABLE yyn; ERROR 42S02: Table 'test.yyn' doesn't exist SHOW CREATE TABLE nyw; Table Create Table nyw CREATE TABLE `nyw` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/' SHOW CREATE TABLE nwy; Table Create Table nwy CREATE TABLE `nwy` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/new_dir/' SHOW CREATE TABLE wny; Table Create Table wny CREATE TABLE `wny` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/new_dir/' SHOW CREATE TABLE ynw; Table Create Table ynw CREATE TABLE `ynw` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 SHOW CREATE TABLE wyn; Table Create Table wyn CREATE TABLE `wyn` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/' SHOW CREATE TABLE ywn; Table Create Table ywn CREATE TABLE `ywn` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 SHOW CREATE TABLE nnn; ERROR 42S02: Table 'test.nnn' doesn't exist SHOW CREATE TABLE www; ERROR 42S02: Table 'test.www' doesn't exist SHOW CREATE TABLE nolink; Table Create Table nolink CREATE TABLE `nolink` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/' # # List of files before DROP TABLES # ---- MYSQLD_DATADIR/test nnn.frm nolink.frm nolink.isl nwy.frm nwy.isl nyw.frm nyw.isl nyy.frm nyy.isl wny.frm wny.ibd wny.isl www.frm www.ibd www.isl wyn.frm wyn.ibd wyn.isl ynw.frm ynw.ibd yny.frm yny.ibd yny.isl ywn.frm ywn.ibd ywn.isl yyn.frm yyn.ibd yyn.isl yyy.frm yyy.ibd yyy.isl ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd nolink.ibd.bak nwy.ibd nyw.ibd nyy.ibd www.ibd wyn.ibd ywn.ibd yyn.ibd yyy.ibd ---- MYSQL_TMP_DIR/new_dir/test nwy.ibd nyw.ibd nyy.ibd wny.ibd www.ibd ynw.ibd yny.ibd yyy.ibd # # Cleanup after restart # DROP TABLE yyy; DROP TABLE nyy; DROP TABLE yny; DROP TABLE yyn; DROP TABLE nyw; DROP TABLE nwy; DROP TABLE wny; DROP TABLE ynw; DROP TABLE wyn; DROP TABLE ywn; DROP TABLE nnn; DROP TABLE www; DROP TABLE nolink; # # List of files not deleted by the DROP TABLES # ---- MYSQLD_DATADIR/test wny.ibd www.ibd wyn.ibd yny.ibd yyn.ibd yyy.ibd ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd.bak nwy.ibd nyy.ibd www.ibd ywn.ibd yyn.ibd yyy.ibd ---- MYSQL_TMP_DIR/new_dir/test nyw.ibd nyy.ibd www.ibd ynw.ibd yny.ibd yyy.ibd # # List of files after removing leftover files # ---- MYSQLD_DATADIR/test ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd.bak ---- MYSQL_TMP_DIR/new_dir/test # # Create some tables again and this time, crash instead of shutdown # InnoDB recovery does not have the ability at this time to query # the data dictionary in order to determine if the table it is # openeing is the correct one, or to finde the previous location # of a tablespace from SYS_DATAFILES. It must rely on the ISL file # to tell the truth. But it can compare the current linked location # with a tablespace found in the default location and use the most # recent. # # Test recovery when tablespaces can be found at multiple places. # SYS_DATAFILES is unavailable during recovery. # Link File will refer to the file at alt_dir. # In each case except the control tablespace, the Link file will # exist with a file name in alt_dir. 'fnolink.ibd.bak' is the # source of the 'wrong' tablespaces. # # Tablename Default_Tablespace Remote_Tablespace # ny Yes Yes # wy Wrong Yes # yn Yes No # yw Yes Wrong # yy Yes Yes (both the same file) # set global innodb_file_per_table=on; set global innodb_file_format='Barracuda'; CREATE TABLE ny (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO ny VALUES (1, 'ny'); CREATE TABLE wy (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO wy VALUES (1, 'wy'); CREATE TABLE yn (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yn VALUES (1, 'yn'); CREATE TABLE yw (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yw VALUES (1, 'yw'); CREATE TABLE yy (c1 INT KEY, c2 TEXT) ENGINE=InnoDB DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir'; INSERT INTO yy VALUES (1, 'yy'); # # Crash the server, copy and remove files. # BEGIN; INSERT INTO ny VALUES (2, 'ny'); INSERT INTO wy VALUES (2, 'wy'); INSERT INTO yn VALUES (2, 'yn'); INSERT INTO yw VALUES (2, 'yw'); INSERT INTO yy VALUES (2, 'yy'); SELECT * FROM ny; c1 c2 1 ny 2 ny SELECT * FROM wy; c1 c2 1 wy 2 wy SELECT * FROM yn; c1 c2 1 yn 2 yn SELECT * FROM yw; c1 c2 1 yw 2 yw SELECT * FROM yy; c1 c2 1 yy 2 yy SET SESSION debug="+d,crash_commit_before"; COMMIT; ERROR HY000: Lost connection to MySQL server during query # # Now that the engine is not running, move files around to test various scenarios. # # NY; Tablespace found in alt_dir but not the default directory. # WY; The wrong tablespace is found in the default directory # and the correct one in alt_dir. # YW; Tablespace is found in the default directory but the wrong file in alt_dir. # YN; Tablespace found the default directory but not in alt_dir. # YY; Found in both default directory and alt-dir. ---- MYSQLD_DATADIR/test ny.frm ny.isl wy.frm wy.ibd wy.isl yn.frm yn.ibd yn.isl yw.frm yw.ibd yw.isl yy.frm yy.ibd yy.isl ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd.bak ny.ibd wy.ibd yw.ibd yy.ibd # # Start the server with innodb-force-recovery=1 so that it does not quit # when it finds multiple possible locations for yy, wy and yw. # SELECT * FROM ny; c1 c2 1 ny SELECT * FROM wy; ERROR 42S02: Table 'test.wy' doesn't exist SELECT * FROM yn; c1 c2 1 yn SELECT * FROM yw; ERROR 42S02: Table 'test.yw' doesn't exist SELECT * FROM yy; ERROR 42S02: Table 'test.yy' doesn't exist SHOW CREATE TABLE ny; Table Create Table ny CREATE TABLE `ny` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 DATA DIRECTORY='MYSQL_TMP_DIR/alt_dir/' SHOW CREATE TABLE wy; ERROR 42S02: Table 'test.wy' doesn't exist SHOW CREATE TABLE yn; Table Create Table yn CREATE TABLE `yn` ( `c1` int(11) NOT NULL, `c2` text, PRIMARY KEY (`c1`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 SHOW CREATE TABLE yw; ERROR 42S02: Table 'test.yw' doesn't exist SHOW CREATE TABLE yy; ERROR 42S02: Table 'test.yy' doesn't exist SELECT path FROM information_schema.innodb_sys_datafiles WHERE path LIKE '%test%' ORDER BY space; path MYSQL_TMP_DIR/alt_dir/test/ny.ibd MYSQL_TMP_DIR/alt_dir/test/wy.ibd MYSQL_TMP_DIR/alt_dir/test/yn.ibd MYSQL_TMP_DIR/alt_dir/test/yw.ibd MYSQL_TMP_DIR/alt_dir/test/yy.ibd # # Shutdown the server and remove extra tablespace files. # # # List of files before removing unused files # ---- MYSQLD_DATADIR/test ny.frm ny.isl wy.frm wy.ibd wy.isl yn.frm yn.ibd yn.isl yw.frm yw.ibd yw.isl yy.frm yy.ibd yy.isl ---- MYSQL_TMP_DIR/alt_dir/test nolink.ibd.bak ny.ibd wy.ibd yw.ibd yy.ibd # # List of files before restart and DROP TABLES # ---- MYSQLD_DATADIR/test ny.frm wy.frm yn.frm yw.frm yy.frm ---- MYSQL_TMP_DIR/alt_dir/test # # Start the server without using force_recover. # DROP TABLE ny; DROP TABLE wy; DROP TABLE yn; DROP TABLE yw; DROP TABLE yy; # # List of files after DROP TABLES # ---- MYSQLD_DATADIR/test ---- MYSQL_TMP_DIR/alt_dir/test # # Cleanup #