mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 12:32:27 +01:00
164 lines
4.8 KiB
Text
164 lines
4.8 KiB
Text
FLUSH TABLES;
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CREATE TABLE t1 (a INT PRIMARY KEY, b TEXT) ENGINE=InnoDB;
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CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t3 (a INT PRIMARY KEY, b TEXT, c TEXT) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (1,REPEAT('a',30000)),(2,REPEAT('b',40000));
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SET DEBUG_SYNC='before_row_upd_extern SIGNAL have_latch WAIT_FOR go1';
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BEGIN;
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UPDATE t1 SET a=a+2;
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ROLLBACK;
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BEGIN;
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UPDATE t1 SET b=CONCAT(b,'foo');
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connect con1,localhost,root,,;
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SET DEBUG_SYNC='now WAIT_FOR have_latch';
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SELECT a, RIGHT(b,20) FROM t1;
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connect con2,localhost,root,,;
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SET DEBUG_SYNC='now SIGNAL go1';
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connection con1;
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a RIGHT(b,20)
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1 aaaaaaaaaaaaaaaaaaaa
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2 bbbbbbbbbbbbbbbbbbbb
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connection default;
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SET DEBUG='+d,row_ins_extern_checkpoint';
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Warnings:
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Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
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SET DEBUG_SYNC='before_row_ins_extern_latch SIGNAL rec_not_blob WAIT_FOR crash';
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ROLLBACK;
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BEGIN;
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INSERT INTO t1 VALUES (3,REPEAT('c',50000));
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connection con1;
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SET DEBUG_SYNC='now WAIT_FOR rec_not_blob';
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SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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SELECT @@tx_isolation;
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@@tx_isolation
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READ-UNCOMMITTED
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SELECT a, RIGHT(b,20) FROM t1;
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a RIGHT(b,20)
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1 aaaaaaaaaaaaaaaaaaaa
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2 bbbbbbbbbbbbbbbbbbbb
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SELECT a FROM t1;
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a
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1
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2
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3
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BEGIN;
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INSERT INTO t2 VALUES (42);
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# restart
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disconnect con1;
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disconnect con2;
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connection default;
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ERROR HY000: Lost connection to MySQL server during query
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t3 VALUES
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(1,REPEAT('d',7000),REPEAT('e',100)),
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(2,REPEAT('g',7000),REPEAT('h',100));
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SET DEBUG_SYNC='blob_write_middle SIGNAL go_sel WAIT_FOR go_upd';
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UPDATE t3 SET c=REPEAT('f',3000) WHERE a=1;
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# Connection con1:
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connect con1,localhost,root,,;
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SET DEBUG_SYNC='now WAIT_FOR go_sel';
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SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
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SELECT @@tx_isolation;
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@@tx_isolation
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READ-UNCOMMITTED
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SELECT a, RIGHT(b,20), RIGHT(c,20) FROM t3;
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a RIGHT(b,20) RIGHT(c,20)
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2 gggggggggggggggggggg hhhhhhhhhhhhhhhhhhhh
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set debug_sync='now SIGNAL go_upd';
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# Connection default:
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connection default;
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# reap UPDATE t3 SET c=REPEAT('f',3000) WHERE a=1;
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# Connection con1:
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connection con1;
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SELECT a, RIGHT(b,20), RIGHT(c,20) FROM t3;
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a RIGHT(b,20) RIGHT(c,20)
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1 dddddddddddddddddddd ffffffffffffffffffff
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2 gggggggggggggggggggg hhhhhhhhhhhhhhhhhhhh
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disconnect con1;
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connection default;
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CHECK TABLE t1,t2,t3;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check status OK
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test.t3 check status OK
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connect con2,localhost,root,,;
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BEGIN;
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INSERT INTO t2 VALUES (347);
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connection default;
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SET DEBUG='+d,row_upd_extern_checkpoint';
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Warnings:
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Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
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SET DEBUG_SYNC='before_row_upd_extern SIGNAL have_latch WAIT_FOR crash';
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UPDATE t3 SET c=REPEAT('i',3000) WHERE a=2;
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connection con2;
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SET DEBUG_SYNC='now WAIT_FOR have_latch';
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SELECT info FROM information_schema.processlist
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WHERE state = 'debug sync point: before_row_upd_extern';
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info
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UPDATE t3 SET c=REPEAT('i',3000) WHERE a=2
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connect con3,localhost,root,,;
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SET GLOBAL innodb_flush_log_at_trx_commit=1;
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DELETE FROM t1;
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ROLLBACK;
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disconnect con3;
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connection con2;
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# restart
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disconnect con2;
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connection default;
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ERROR HY000: Lost connection to MySQL server during query
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CHECK TABLE t1,t2,t3;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check status OK
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test.t3 check status OK
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SELECT a, RIGHT(b,20), RIGHT(c,20) FROM t3;
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a RIGHT(b,20) RIGHT(c,20)
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1 dddddddddddddddddddd ffffffffffffffffffff
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2 gggggggggggggggggggg hhhhhhhhhhhhhhhhhhhh
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SELECT a FROM t3;
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a
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1
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2
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connect con2,localhost,root,,;
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BEGIN;
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INSERT INTO t2 VALUES (33101);
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connection default;
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SET DEBUG='+d,row_upd_extern_checkpoint';
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Warnings:
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Warning 1287 '@@debug' is deprecated and will be removed in a future release. Please use '@@debug_dbug' instead
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SET DEBUG_SYNC='after_row_upd_extern SIGNAL have_latch WAIT_FOR crash';
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UPDATE t3 SET c=REPEAT('j',3000) WHERE a=2;
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connection con2;
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SET DEBUG_SYNC='now WAIT_FOR have_latch';
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SELECT info FROM information_schema.processlist
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WHERE state = 'debug sync point: after_row_upd_extern';
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info
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UPDATE t3 SET c=REPEAT('j',3000) WHERE a=2
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# restart
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disconnect con2;
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connection default;
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ERROR HY000: Lost connection to MySQL server during query
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CHECK TABLE t1,t2,t3;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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test.t2 check status OK
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test.t3 check status OK
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SELECT a, RIGHT(b,20), RIGHT(c,20) FROM t3;
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a RIGHT(b,20) RIGHT(c,20)
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1 dddddddddddddddddddd ffffffffffffffffffff
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2 gggggggggggggggggggg hhhhhhhhhhhhhhhhhhhh
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SELECT a FROM t3;
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a
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1
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2
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SELECT * FROM t2;
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a
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DROP TABLE t1,t2,t3;
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CREATE TABLE t1(f1 INT PRIMARY KEY, f2 TEXT)ENGINE=InnoDB
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ROW_FORMAT=REDUNDANT;
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SET @fill_amount = (@@innodb_page_size / 2 ) + 1 ;
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INSERT INTO t1 VALUES(1, REPEAT(2, @fill_amount));
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UPDATE t1 SET f1 = 2;
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DROP TABLE t1;
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