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Fix for BUG#8325 "Deadlock in replication thread stops replication":

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in slave SQL thread: if a transaction fails because of InnoDB deadlock or innodb_lock_wait_timeout exceeded,
optionally retry the transaction a certain number of times (new variable --slave_transaction_retries).


sql/mysql_priv.h:
  new var slave_transaction_retries
sql/mysqld.cc:
  new variable slave_transaction_retries. Plus fixing a typo.
sql/set_var.cc:
  new global variable slave_transaction_retries (will be one per subslave, when we have multimaster).
sql/slave.cc:
  Slave SQL thread: if a transaction fails because of InnoDB deadlock or innodb_lock_wait_timeout exceeded,
  optionally retry the transaction a certain number of times (--slave_transaction_retries).
sql/slave.h:
  new RELAY_LOG_INFO::trans_retries.
This commit is contained in:
unknown
2005-03-02 11:29:48 +01:00
parent 3087b2f1fd
commit d7e0784c65
8 changed files with 263 additions and 5 deletions
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81
mysql-test/r/rpl_deadlock.result Normal file
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stop slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
reset master;
reset slave;
drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
start slave;
create table t1 (a int not null, key(a)) engine=innodb;
create table t2 (a int not null, key(a)) engine=innodb;
create table t3 (a int) engine=innodb;
create table t4 (a int) engine=innodb;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL default '0',
KEY `a` (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11) NOT NULL default '0',
KEY `a` (`a`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
stop slave;
begin;
insert into t3 select * from t2 for update;
insert into t1 values(1);
commit;
begin;
select * from t1 for update;
a
start slave;
insert into t2 values(22);
commit;
select * from t1;
a
1
select * from t2;
a
22
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master
# 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 13110 # # master-bin.000001 Yes Yes 0 0 13110 # None 0 No #
stop slave;
change master to master_log_pos=401;
begin;
select * from t2 for update;
a
22
start slave;
commit;
select * from t1;
a
1
1
select * from t2;
a
22
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master
# 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 13110 # # master-bin.000001 Yes Yes 0 0 13110 # None 0 No #
set global max_relay_log_size=0;
stop slave;
change master to master_log_pos=401;
begin;
select * from t2 for update;
a
22
start slave;
commit;
select * from t1;
a
1
1
1
select * from t2;
a
22
show slave status;
Slave_IO_State Master_Host Master_User Master_Port Connect_Retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_Do_DB Replicate_Ignore_DB Replicate_Do_Table Replicate_Ignore_Table Replicate_Wild_Do_Table Replicate_Wild_Ignore_Table Last_Errno Last_Error Skip_Counter Exec_Master_Log_Pos Relay_Log_Space Until_Condition Until_Log_File Until_Log_Pos Master_SSL_Allowed Master_SSL_CA_File Master_SSL_CA_Path Master_SSL_Cert Master_SSL_Cipher Master_SSL_Key Seconds_Behind_Master
# 127.0.0.1 root MASTER_MYPORT 1 master-bin.000001 13110 # # master-bin.000001 Yes Yes 0 0 13110 # None 0 No #
drop table t1,t2;