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-rw-r--r--mysql-test/suite/rpl/r/rpl_semi_sync_skip_repl.result30
-rw-r--r--mysql-test/suite/rpl/t/rpl_semi_sync_skip_repl.test62
-rw-r--r--sql/log_event.cc2
-rw-r--r--sql/sql_repl.cc7
4 files changed, 96 insertions, 5 deletions
diff --git a/mysql-test/suite/rpl/r/rpl_semi_sync_skip_repl.result b/mysql-test/suite/rpl/r/rpl_semi_sync_skip_repl.result
new file mode 100644
index 00000000000..811715d1439
--- /dev/null
+++ b/mysql-test/suite/rpl/r/rpl_semi_sync_skip_repl.result
@@ -0,0 +1,30 @@
+include/master-slave.inc
+[connection master]
+connection master;
+call mtr.add_suppression("Timeout waiting for reply of binlog");
+SET @@GLOBAL.rpl_semi_sync_master_enabled = 1;
+SET @@GLOBAL.rpl_semi_sync_master_timeout=100;
+connection slave;
+include/stop_slave.inc
+SET @@GLOBAL.replicate_events_marked_for_skip=FILTER_ON_MASTER;
+SET @@GLOBAL. rpl_semi_sync_slave_enabled = 1;
+include/start_slave.inc
+connection master;
+CREATE TABLE t1 (a INT) ENGINE=innodb;
+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;
+connection slave;
+connection master;
+SET @@GLOBAL.debug_dbug="";
+SET @@GLOBAL. rpl_semi_sync_master_timeout = 10000;
+SET @@GLOBAL. rpl_semi_sync_master_enabled = 0;
+connection master;
+DROP TABLE t1;
+connection slave;
+include/stop_slave.inc
+SET @@GLOBAL. rpl_semi_sync_slave_enabled = 0;
+SET @@GLOBAL.replicate_events_marked_for_skip = REPLICATE;
+include/rpl_end.inc
diff --git a/mysql-test/suite/rpl/t/rpl_semi_sync_skip_repl.test b/mysql-test/suite/rpl/t/rpl_semi_sync_skip_repl.test
new file mode 100644
index 00000000000..2f6da18067c
--- /dev/null
+++ b/mysql-test/suite/rpl/t/rpl_semi_sync_skip_repl.test
@@ -0,0 +1,62 @@
+# 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
diff --git a/sql/log_event.cc b/sql/log_event.cc
index 4120342c2c5..30f1e88b86c 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -1711,6 +1711,8 @@ bool Log_event::write_header(ulong event_data_length)
*/
log_pos= writer->pos() + data_written;
+
+ DBUG_EXECUTE_IF("dbug_master_binlog_over_2GB", log_pos += (1ULL <<31););
}
now= get_time(); // Query start time
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index 78034badf8c..4ec70bf31da 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -1904,11 +1904,8 @@ send_event_to_slave(binlog_send_info *info, Log_event_type event_type,
*/
if (info->thd->variables.option_bits & OPTION_SKIP_REPLICATION)
{
- /*
- The first byte of the packet is a '\0' to distinguish it from an error
- packet. So the actual event starts at offset +1.
- */
- uint16 event_flags= uint2korr(&((*packet)[FLAGS_OFFSET+1]));
+ uint16 event_flags= uint2korr(&((*packet)[FLAGS_OFFSET + ev_offset]));
+
if (event_flags & LOG_EVENT_SKIP_REPLICATION_F)
return NULL;
}