初版

build/lib/mysql/mysql-test/suite/manual/t/rpl_replication_delay.test

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+#
+# Testing replication delay reporting (bug#29309)
+# there is an unavoidable non-determinism in the test
+# please compare the results with the comments 
+#
+
+
+source include/master-slave.inc;
+
+connection slave;
+
+--echo # Second_behind reports 0
+let $status_items= Seconds_Behind_Master;
+source include/show_slave_status.inc;
+sleep 3;
+
+### bug emulation
+
+connection master;
+drop table if exists t1;
+create table t1 (f1 int);
+sleep 3;
+
+#connection slave;
+sync_slave_with_master;
+flush logs /* contaminate rli->last_master_timestamp */;
+
+connection slave;
+lock table t1 write;
+
+connection master;
+insert into t1 values (1);
+
+sleep 3;
+
+connection slave;
+--echo # bug emulated: reports slave threads starting time about 3*3 not 3 secs
+source include/show_slave_status.inc;
+unlock tables;
+
+connection master;
+sync_slave_with_master;
+
+### bugfix
+
+
+connection slave;
+flush logs /* this time rli->last_master_timestamp is not affected */;
+lock table t1 write;
+
+connection master;
+insert into t1 values (2);
+sleep 3;
+
+connection slave;
+--echo # reports the correct diff with master query time about 3+3 secs
+source include/show_slave_status.inc;
+unlock tables;
+
+connection master;
+drop table t1;
+
+--source include/rpl_end.inc