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MDEV-17073 INSERT…ON DUPLICATE KEY UPDATE became more deadlock-prone

thd_rpl_stmt_based(): A new predicate to check if statement-based
replication is active. (This can also hold when replication is not
in use, but binlog is.)

que_thr_stop(), row_ins_duplicate_error_in_clust(),
row_ins_sec_index_entry_low(), row_ins(): On a duplicate key error,
only lock all index records when statement-based replication is in use.
This commit is contained in:
Marko Mäkelä
2018-11-02 14:17:19 +02:00
parent cfa047069e
commit 8a346f31b9
9 changed files with 109 additions and 77 deletions

View File

@ -1,4 +1,3 @@
drop table if exists t1;
set global transaction isolation level repeatable read;
CREATE TABLE t1(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
@ -79,20 +78,13 @@ affected rows: 0
#
# Parallel execution
#
connect con1, localhost, root;
connect con2, localhost, root;
SET DEBUG_SYNC='now WAIT_FOR write_row_done';
connection con1;
#
# Connection 1
#
connect con1, localhost, root;
SET DEBUG_SYNC='ha_write_row_end SIGNAL write_row_done WAIT_FOR continue';
affected rows: 0
INSERT INTO t1(k) VALUES (1), (2), (3) ON DUPLICATE KEY UPDATE c='1';
connection con2;
#
# Connection 2
#
affected rows: 0
SET DEBUG_SYNC='execute_command_after_close_tables SIGNAL continue';
affected rows: 0
@ -140,18 +132,10 @@ k INT,
c CHAR(1),
UNIQUE KEY(k)) ENGINE=InnoDB;
connect con1, localhost, root;
connect con2, localhost, root;
connection con1;
#
# Connection 1
#
SET DEBUG_SYNC='ha_write_row_end SIGNAL continue2 WAIT_FOR continue1';
affected rows: 0
INSERT INTO t1(k) VALUES (1), (2), (3) ON DUPLICATE KEY UPDATE c='1';
connection con2;
#
# Connection 2
#
connect con2, localhost, root;
SET DEBUG_SYNC='ha_write_row_start WAIT_FOR continue2';
affected rows: 0
SET DEBUG_SYNC='after_mysql_insert SIGNAL continue1';
@ -159,6 +143,7 @@ affected rows: 0
INSERT INTO t1(k) VALUES (2), (4), (5) ON DUPLICATE KEY UPDATE c='2';
affected rows: 3
info: Records: 3 Duplicates: 0 Warnings: 0
disconnect con2;
connection con1;
affected rows: 4
info: Records: 3 Duplicates: 1 Warnings: 0
@ -174,7 +159,6 @@ id k c
5 4 NULL
6 5 NULL
disconnect con1;
disconnect con2;
connection default;
DROP TABLE t1;
set global transaction isolation level repeatable read;