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ed1696f6b9
we store 7 bytes (1 + 2*3) in every Query_log_event. In the future if users want binlog optimized for small size and less safe, we could add --binlog-no-charset (and binlog-no-sql-mode etc): charset info is something by design optional (even if for now we don't offer possibility to disable it): it's not a binlog format change. We try to reduce the number of get_charset() calls in the slave SQL thread to a minimum by caching the charset read from the previous event (which will often be equal to the one of the current event). We don't use SET ONE_SHOT for charset-aware repl (we still do for timezones, will be fixed later). No more errors if one changes the global value of charset vars on master or slave (as we log charset info in all Query_log_event). Not fixing Load_log_event as it will be rewritten soon by Dmitri. Testing how mysqlbinlog behaves in rpl_charset.test. mysqlbinlog needs to know where charset file is (to be able to convert a charset number found in binlog (e.g. in User_var_log_event) to a charset name); mysql-test-run needs to pass the correct value for this option to mysqlbinlog. Many result udpates (adding charset info into every event shifts log_pos in SHOW BINLOG EVENTS). Roughly the same job is to be done for timezones :)
39 lines
2.1 KiB
Text
39 lines
2.1 KiB
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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create table t1 (a int primary key);
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insert into t1 values (1),(1);
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ERROR 23000: Duplicate entry '1' for key 1
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show slave status;
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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
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# 127.0.0.1 root MASTER_PORT 1 master-bin.000001 287 # # master-bin.000001 Yes Yes test.t3,test.t1,test.t2 0 0 287 # None 0 No #
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show tables like 't1';
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Tables_in_test (t1)
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drop table t1;
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select get_lock('crash_lock%20C', 10);
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get_lock('crash_lock%20C', 10)
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1
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create table t2 (a int primary key);
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insert into t2 values(1);
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create table t3 (id int);
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insert into t3 values(connection_id());
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update t2 set a = a + 1 + get_lock('crash_lock%20C', 10);
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select (@id := id) - id from t3;
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(@id := id) - id
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0
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kill @id;
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drop table t2,t3;
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show binlog events from 95;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 95 Query 1 194 use `test`; create table t1 (a int primary key)
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master-bin.000001 194 Query 1 287 use `test`; insert into t1 values (1),(1)
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master-bin.000001 287 Query 1 364 use `test`; drop table t1
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master-bin.000001 364 Query 1 463 use `test`; create table t2 (a int primary key)
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master-bin.000001 463 Query 1 551 use `test`; insert into t2 values(1)
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master-bin.000001 551 Query 1 639 use `test`; create table t3 (id int)
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master-bin.000001 639 Query 1 741 use `test`; insert into t3 values(connection_id())
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master-bin.000001 741 Query 1 861 use `test`; update t2 set a = a + 1 + get_lock('crash_lock%20C', 10)
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master-bin.000001 861 Query 1 941 use `test`; drop table t2,t3
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