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WL#7266: Dump-thread additional concurrency tests

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Merge from mysql-5.1 into mysql-5.5.
This commit is contained in:
Nuno Carvalho
2013-10-14 15:51:09 +01:00
parent 5e550e9dc2 3f58745233
commit af8a8ca650
2 changed files with 65 additions and 0 deletions
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14
mysql-test/suite/rpl/r/rpl_lost_events_on_rotate.result Normal file
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include/master-slave.inc
[connection master]
SET @debug_saved= @@GLOBAL.DEBUG;
CREATE TABLE t (i INT);
SET GLOBAL DEBUG= "d,wait_after_binlog_EOF";
INSERT INTO t VALUES (1);
INSERT INTO t VALUES (2);
FLUSH LOGS;
SET DEBUG_SYNC= 'now SIGNAL signal.rotate_finished';
include/diff_tables.inc [master:t,slave:t]
SET @@GLOBAL.DEBUG= @debug_saved;
SET DEBUG_SYNC= 'RESET';
DROP TABLE t;
include/rpl_end.inc

51
mysql-test/suite/rpl/t/rpl_lost_events_on_rotate.test Normal file
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#
# 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