# mysqlbinlog_big.test # # Show that mysqlbinlog can handle big rows. # # # The *huge* output of mysqlbinlog will be redirected to # $MYSQLTEST_VARDIR/$mysqlbinlog_output # --let $mysqlbinlog_output= tmp/mysqlbinlog_big_1.out --source include/have_binlog_format_row.inc --source include/have_log_bin.inc # This is a big test. --source include/big_test.inc # Test needs more than 4G of memory --source include/have_64bit.inc --echo # --echo # Preparatory cleanup. --echo # --disable_warnings drop database if exists mysqltest; create database mysqltest; use mysqltest; DROP TABLE IF EXISTS t1; --enable_warnings --echo # --echo # We need a fixed timestamp to avoid varying results. --echo # SET timestamp=1000000000; --echo # --echo # We need big packets. --echo # --echo # Capture initial value to reset at the end of the test # use let $ = query_get_value as FLUSH statements # in the test will set @ values to NULL let $orig_max_allowed_packet = query_get_value(SELECT @@global.max_allowed_packet, @@global.max_allowed_packet, 1); --echo # Now adjust max_allowed_packet SET @@global.max_allowed_packet= 10*1024*1024*1024; --echo max_allowed_packet is a global variable. --echo In order for the preceding change in max_allowed_packets' value --echo to be seen and used, we must start a new connection. --echo The change does not take effect with the current one. --echo For simplicity, we just disconnect / reconnect connection default here. disconnect default; connect (default, localhost,root,,); --echo # --echo # Delete all existing binary logs. --echo # RESET MASTER; --echo # --echo # Create a test table. --echo # use mysqltest; eval CREATE TABLE t1 ( c1 LONGTEXT ) DEFAULT CHARSET latin1; --echo # --echo # Show how many rows are affected by each statement. --echo # --enable_info --echo # --echo # Insert some big rows. --echo # --echo insert 1024MB data twice INSERT INTO t1 VALUES (REPEAT('ManyMegaByteBlck', 67108864)); INSERT INTO t1 VALUES (REPEAT('MegaByteBlckMany', 67108864)); --echo # --echo # Flush all log buffers to the log file. --echo # FLUSH LOGS; --echo # --echo # Call mysqlbinlog to display the log file contents. --echo # NOTE: The output of mysqlbinlog is redirected to --echo # \$MYSQLTEST_VARDIR/$mysqlbinlog_output --echo # If you want to examine it, disable remove_file --echo # at the bottom of the test script. --echo # let $MYSQLD_DATADIR= `select @@datadir`; --replace_result $MYSQLTEST_VARDIR --replace_regex /SQL_LOAD_MB-[0-9]-[0-9]/SQL_LOAD_MB-#-#/ /exec_time=[0-9]*/exec_time=#/ /end_log_pos [0-9]*/end_log_pos #/ /# at [0-9]*/# at #/ /Xid = [0-9]*/Xid = #/ --exec $MYSQL_BINLOG -B -v -v $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/$mysqlbinlog_output --echo # --echo # Cleanup. --echo # --echo # reset variable value to pass testcase checks --disable_query_log eval SET @@global.max_allowed_packet = $orig_max_allowed_packet; --enable_query_log DROP TABLE t1; drop database if exists mysqltest; --echo remove_file \$MYSQLTEST_VARDIR/$mysqlbinlog_output # # NOTE: If you want to see the *huge* mysqlbinlog output, disable next line: # --remove_file $MYSQLTEST_VARDIR/$mysqlbinlog_output