bk commit into 5.0 tree (svoj:1.2595) BUG#13861

[Sergey Vojtovich]

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ChangeSet@stripped, 2008-03-14 17:17:03+04:00, svoj@stripped +2 -0
  BUG#13861 - START SLAVE UNTIL may stop 1 evnt too late if
              log-slave-updates and circul repl
  
  This is a test case fix for BUG#13861.

  mysql-test/r/rpl_dual_pos_advance.result@stripped, 2008-03-14 17:17:01+04:00, svoj@stripped
+0 -3
    Fix for a test case for BUG#13861.

  mysql-test/t/rpl_dual_pos_advance.test@stripped, 2008-03-14 17:17:01+04:00, svoj@stripped +0
-6
    Fix for a test case for BUG#13861.
    
    master_pos_wait() requires slave sql thread running. But it is not
    guaranteed for this test case. As we use start slave until it may
    execute all events and shutdown before master_pos_wait() is started.
    
    On the other hand it is safe just to wait for slave to stop here,
    as start slave returns _after_ sql thread is started.

diff -Nrup a/mysql-test/r/rpl_dual_pos_advance.result
b/mysql-test/r/rpl_dual_pos_advance.result
--- a/mysql-test/r/rpl_dual_pos_advance.result	2008-02-22 19:07:06 +04:00
+++ b/mysql-test/r/rpl_dual_pos_advance.result	2008-03-14 17:17:01 +04:00
@@ -25,9 +25,6 @@ insert into t3 values(4);
 start slave until master_log_file="slave-bin.000001",master_log_pos=195;
 Warnings:
 Note	1278	It is recommended to use --skip-slave-start when doing step-by-step replication
with START SLAVE UNTIL; otherwise, you will get problems if you get an unexpected slave's
mysqld restart
-select master_pos_wait("slave-bin.000001",137);
-master_pos_wait("slave-bin.000001",137)
-0
 show tables;
 Tables_in_test
 t1
diff -Nrup a/mysql-test/t/rpl_dual_pos_advance.test
b/mysql-test/t/rpl_dual_pos_advance.test
--- a/mysql-test/t/rpl_dual_pos_advance.test	2008-02-22 19:07:06 +04:00
+++ b/mysql-test/t/rpl_dual_pos_advance.test	2008-03-14 17:17:01 +04:00
@@ -65,12 +65,6 @@ connection master;
 # asking it to stop before creation of t3.
 
 start slave until master_log_file="slave-bin.000001",master_log_pos=195;
-
-# wait until it's started (the position below is the start of "CREATE
-# TABLE t2") (otherwise wait_for_slave_to_stop may return at once)
-
-select master_pos_wait("slave-bin.000001",137);
-
 wait_for_slave_to_stop;
 
 # then BUG#13861 causes t3 to show up below (because stopped too