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mariadb/mysql-test/suite/rpl/t/rpl_semi_sync_skip_repl.test
Andrei Elkin 9005108234 MDEV-14721 Big transaction events get lost on semisync master when
replicate_events_marked_for_skip=FILTER_ON_MASTER

[Note this is a cherry-pick from 10.2 branch.]

When events of a big transaction are binlogged offsetting over 2GB from
the beginning of the log the semisync master's dump thread
lost such events.
The events were skipped by the Dump thread that found their skipping
status erroneously.

The current fixes make sure the skipping status is computed correctly.
The test verifies them simulating the 2GB offset.
2018-03-12 17:07:06 +02:00

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# MDEV-14721 Big transaction events get lost on semisync master when
# replicate_events_marked_for_skip=FILTER_ON_MASTER
#
# When events of a big transaction are binlogged offsetting over 2GB from
# the beginning of the log the semisync master's dump thread
# lost such events.
# The test verifies the fixes' correctness simulating the 2GB offset.
source include/have_semisync.inc;
source include/not_embedded.inc;
source include/have_innodb.inc;
source include/have_debug.inc;
source include/master-slave.inc;
--connection master
# Suppress warnings that might be generated during the test
call mtr.add_suppression("Timeout waiting for reply of binlog");
--let $sav_enabled_master=`SELECT @@GLOBAL.rpl_semi_sync_master_enabled `
--let $sav_timeout_master=`SELECT @@GLOBAL.rpl_semi_sync_master_timeout `
SET @@GLOBAL.rpl_semi_sync_master_enabled = 1;
SET @@GLOBAL.rpl_semi_sync_master_timeout=100;
--connection slave
source include/stop_slave.inc;
--let $sav_skip_marked_slave=`SELECT @@GLOBAL.replicate_events_marked_for_skip `
SET @@GLOBAL.replicate_events_marked_for_skip=FILTER_ON_MASTER;
--let $sav_enabled_slave=`SELECT @@GLOBAL.rpl_semi_sync_slave_enabled `
SET @@GLOBAL. rpl_semi_sync_slave_enabled = 1;
source include/start_slave.inc;
--connection master
CREATE TABLE t1 (a INT) ENGINE=innodb;
# Make the following events as if they offset over 2GB from the beginning of binlog
SET @@GLOBAL.debug_dbug= "d,dbug_master_binlog_over_2GB";
SET @@SESSION.skip_replication=1;
INSERT INTO t1 SET a=1;
SET @@SESSION.skip_replication=0;
INSERT INTO t1 SET a=0;
--sync_slave_with_master
#
# Clean up
#
--connection master
SET @@GLOBAL.debug_dbug="";
--eval SET @@GLOBAL. rpl_semi_sync_master_timeout = $sav_timeout_master
--eval SET @@GLOBAL. rpl_semi_sync_master_enabled = $sav_enabled_master
--connection master
DROP TABLE t1;
--sync_slave_with_master
source include/stop_slave.inc;
--eval SET @@GLOBAL. rpl_semi_sync_slave_enabled = $sav_enabled_slave
--eval SET @@GLOBAL.replicate_events_marked_for_skip = $sav_skip_marked_slave
--let $rpl_only_running_threads= 1
--source include/rpl_end.inc