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cc05440836
Some of the test cases reference to binlog position and these position numbers are written into result explicitly. It is difficult to maintain if log event format changes. There are a couple of cases explicit position number appears, we handle them in different ways A. 'CHANGE MASTER ...' with MASTER_LOG_POS or/and RELAY_LOG_POS options Use --replace_result to mask them. B. 'SHOW BINLOG EVENT ...' Replaced by show_binlog_events.inc or wait_for_binlog_event.inc. show_binlog_events.inc file's function is enhanced by given $binlog_file and $binlog_limit. C. 'SHOW SLAVE STATUS', 'show_slave_status.inc' and 'show_slave_status2.inc' For the test cases just care a few items in the result of 'SHOW SLAVE STATUS', only the items related to each test case are showed. 'show_slave_status.inc' is rebuild, only the given items in $status_items will be showed. 'check_slave_is_running.inc' and 'check_slave_no_error.inc' and 'check_slave_param.inc' are auxiliary files helping to show running status and error information easily.
70 lines
2.8 KiB
SQL
70 lines
2.8 KiB
SQL
# For a given event which is at position $master_log_pos in the the master's
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# binary log, returns its position in the slave's relay log file
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# $relay_log_file.
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# The position is stored in the variable $relay_log_pos.
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# Usage:
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# let $relay_log_file= 'relay-log-bin.000001';
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# let $master_log_pos= 106;
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# source include/get_relay_log_pos.inc;
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# # at this point, get_relay_log_pos.inc sets $relay_log_pos. echo position
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# # in $relay_log_file: $relay_log_pos.
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if (`SELECT '$relay_log_file' = ''`)
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{
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--die 'variable $relay_log_file is null'
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}
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if (`SELECT '$master_log_pos' = ''`)
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{
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--die 'variable $master_log_pos is null'
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}
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let $MYSQLD_DATADIR= `select @@datadir`;
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let $_suffix= `SELECT UUID()`;
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let $_tmp_file= $MYSQLTEST_VARDIR/tmp/mysqlbinlog.$_suffix;
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--exec $MYSQL_BINLOG $MYSQLD_DATADIR/$relay_log_file > $_tmp_file
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# All queries in this file should not be logged.
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--disable_query_log
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--disable_warnings
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DROP TEMPORARY TABLE IF EXISTS mysqlbinlog_events;
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DROP TEMPORARY TABLE IF EXISTS events_at;
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DROP TEMPORARY TABLE IF EXISTS events_pos;
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CREATE TEMPORARY TABLE mysqlbinlog_events(c1 INT AUTO_INCREMENT KEY, c2 varchar(256));
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# Event position is in the comments output by mysqlbinlog, we load this
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# comments into the table
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# '# at 106'
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# '# .... end_log_pos 46'
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eval LOAD DATA LOCAL INFILE '$_tmp_file' INTO TABLE mysqlbinlog_events
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LINES STARTING BY '#' (c2) SET c1 = NULL;
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--enable_warnings
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# Event pos in relay log file is inserted into table events_at
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CREATE TEMPORARY TABLE events_at(c1 INT AUTO_INCREMENT KEY, c2 varchar(256))
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SELECT c2 FROM mysqlbinlog_events WHERE c2 LIKE ' at%' ORDER BY c1;
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# Event pos in master log file is inserted into table events_pos
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CREATE TEMPORARY TABLE events_pos(c1 INT AUTO_INCREMENT KEY, c2 varchar(256))
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SELECT c2 FROM mysqlbinlog_events WHERE c2 LIKE '% end_log_pos %' ORDER BY c1;
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# events_at events_pos
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# c1------c2-------------------------- c1------c2------------------------
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# 1 ev1's begin pos in relay log 1 ev1's end pos in master log
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# 2 ev2's begin pos in relay log 2 ev2's end pos in master log
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# 3 ev3's begin pos in relay log 3 ev3's end pos in master log
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# events always keep the same sequence.
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# Because event[N]'s end pos is equal to event[N+1]'s begin pos we want to
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# find event's end pos in relay log, we can find the right relay_log_pos
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# using the relationship that 'events_pos.c1 = events_at.c1 + 1'
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#
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# There is a fault that we can't get the relay log position of the last event,
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# as it is not output by mysqlbinlog
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let $relay_log_pos= `SELECT SUBSTRING(a.c2, 5)
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FROM events_at a, events_pos b
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WHERE a.c1=b.c1+1 and b.c2 LIKE '% $master_log_pos%'`;
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DROP TEMPORARY TABLE mysqlbinlog_events, events_at, events_pos;
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--remove_file $_tmp_file
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--enable_query_log
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