WordPress

#
# Whenever the mysql_binlog_send method (dump thread) reaches the
# end of file when reading events from the binlog, before checking
# if it should wait for more events, there was a test to check if
# the file being read was still active, i.e, it was the last known
# binlog. However, it was possible that something was written to
# the binary log and then a rotation would happen, after EOF was
# detected and before the check for active was performed. In this
# case, the end of the binary log would not be read by the dump
# thread, and this would cause the slave to lose updates.
#
# This test verifies that the problem has been fixed. It waits
# during this window while forcing a rotation in the binlog.
#
--source include/have_debug.inc
--source include/master-slave.inc

--connection master

SET @debug_saved= @@GLOBAL.DEBUG;

CREATE TABLE t (i INT);

# When reaching the EOF the dump thread will wait before deciding if
# it should move to a new binlong file.
SET GLOBAL DEBUG= "d,wait_after_binlog_EOF";

INSERT INTO t VALUES (1);

--sleep 1

# A insert and a rotate happens before the decision
INSERT INTO t VALUES (2);
FLUSH LOGS;

SET DEBUG_SYNC= 'now SIGNAL signal.rotate_finished';

--sync_slave_with_master

# All the rows should be sent to the slave.
--let $diff_tables=master:t,slave:t
--source include/diff_tables.inc

##Clean up
--connection master

SET @@GLOBAL.DEBUG= @debug_saved;
SET DEBUG_SYNC= 'RESET';

DROP TABLE t;
--source include/rpl_end.inc