EVOLUTION-MANAGER

Edit File: rpl_stmt_seq.inc

################### include/rpl_stmt_seq.inc ########################### # # # Check if a given SQL statement (->$my_stmt) / AUTOCOMMIT mode / # # storage engine somehow involved causes COMMIT or ROLLBACK. # # # # # # The typical test sequence # # ------------------------- # # 1. master connection: INSERT without commit # # check table content of master and slave # # 2. master connection: EXECUTE the statement # # check table content of master and slave # # 3. master connection: ROLLBACK # # check table content of master and slave # # 4. flush the logs # # # # The variables # # $show_binlog -- print binlog entries # # 0 - default + fits to the file with # # results # # 1 - useful for debugging # # This variable is used within # # include/rpl_stmt_seq.inc. # # $manipulate -- Manipulation of the binary logs # # 0 - do nothing # # 1 - so that the output of SHOW BINLOG # # EVENTS IN <current log> contains only # # commands of the current test sequence # # This is especially useful, if the # # $show_binlog is set to 1 and many # # subtest are executed. # # This variable is used within # # include/rpl_stmt_seq.inc. # # have to be set before sourcing this script. # # # # Please be very careful when editing this routine, because the # # handling of the $variables is extreme sensitive. # # # ######################################################################## # Last update: # 2007-02-12 ML Replace comments via SQL by "--echo ..." # let $VERSION=`select version()`; --echo --echo ######## $my_stmt ######## ############################################################### # Predict the number of the current log ############################################################### # Disable the logging of the log number computation. --disable_query_log # $_log_num_n should contain the number of the current binlog in numeric style. # If this routine is called for the first time, $_log_num will not initialized # and contain the value '' instead of '1'. So we will correct it here. # eval set @aux= IF('$_log_num_n' = '', '1', '$_log_num_n'); let $_log_num_n= `SELECT @aux`; eval set @aux= LPAD('$_log_num_n',6,'0'); # SELECT @aux AS "@aux is"; # # $_log_num_s should contain the number of the current binlog in string style. let $_log_num_s= `select @aux`; # eval SELECT '$log_num' ; --enable_query_log ############################################################### # INSERT ############################################################### connection master; # Maybe it would be smarter to use a table with an autoincrement column. let $MAX= `SELECT MAX(f1) FROM t1` ; eval INSERT INTO t1 SET f1= $MAX + 1; # results before DDL(to be tested) SELECT MAX(f1) FROM t1; if ($show_binlog) { --let $binlog_file= master-bin.$_log_num_s --source include/show_binlog_events.inc } sync_slave_with_master; connection slave; # results before DDL(to be tested) SELECT MAX(f1) FROM t1; if ($show_binlog) { --let $binlog_file= slave-bin.$_log_num_s --source include/show_binlog_events.inc } ############################################################### # command to be tested ############################################################### connection master; eval $my_stmt; # Devaluate $my_stmt, to detect script bugs let $my_stmt= ERROR: YOU FORGOT TO FILL IN THE STATEMENT; # results after DDL(to be tested) SELECT MAX(f1) FROM t1; if ($show_binlog) { --let $binlog_file= master-bin.$_log_num_s --source include/show_binlog_events.inc } sync_slave_with_master; connection slave; # results after DDL(to be tested) SELECT MAX(f1) FROM t1; if ($show_binlog) { --let $binlog_file= slave-bin.$_log_num_s --source include/show_binlog_events.inc } ############################################################### # ROLLBACK ############################################################### connection master; ROLLBACK; # results after final ROLLBACK SELECT MAX(f1) FROM t1; # Try to detect if the DDL command caused that the INSERT is committed # $MAX holds the highest/last value just before the insert of MAX + 1 --disable_query_log eval SELECT CONCAT(CONCAT('TEST-INFO: MASTER: The INSERT is ', IF(MAX(f1) = $MAX + 1, 'committed', 'not committed')), IF((MAX(f1) = $MAX + 1) XOR NOT $my_master_commit, ' (Succeeded)', ' (Failed)')) AS "" FROM mysqltest1.t1; --enable_query_log if ($show_binlog) { --let $binlog_file= master-bin.$_log_num_s --source include/show_binlog_events.inc } sync_slave_with_master; connection slave; # results after final ROLLBACK SELECT MAX(f1) FROM t1; --disable_query_log eval SELECT CONCAT(CONCAT('TEST-INFO: SLAVE: The INSERT is ', IF(MAX(f1) = $MAX + 1, 'committed', 'not committed')), IF((MAX(f1) = $MAX + 1) XOR NOT $my_slave_commit, ' (Succeeded)', ' (Failed)')) AS "" FROM mysqltest1.t1; --enable_query_log if ($show_binlog) { --let $binlog_file= slave-bin.$_log_num_s --source include/show_binlog_events.inc } ############################################################### # Manipulate binlog ############################################################### if ($manipulate) { #### Manipulate the binary logs, # so that the output of SHOW BINLOG EVENTS IN <current log> # contains only commands of the current test sequence. # - flush the master and the slave log # ---> both start to write into new logs with incremented number # - increment $_log_num_n connection master; flush logs; # sleep 1; # eval SHOW BINLOG EVENTS IN 'master-bin.$_log_num_s'; sync_slave_with_master; connection slave; # the final content of the binary log flush logs; # The next sleep is urgent needed. # Without this sleep the slaves crashes often, when the SHOW BINLOG # is executed. :-( # sleep 1; # eval SHOW BINLOG EVENTS IN 'slave-bin.$_log_num_s'; inc $_log_num_n; } connection master;