mirror of
https://github.com/MariaDB/server.git
synced 2025-07-04 01:23:45 +03:00
3399194cef
This worklog aims at testing the two following scenarios: 1) 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. 2) Verify dump thread can send events in active file, correctly after encountering an IO error.
52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
#
|
|
# 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
|