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MWL#234: Implement option to switch between master-side and client-side filtering of @@skip_replication events.

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2011-08-16 11:51:02 +02:00
parent 50846bf7e5
commit 9313032283
10 changed files with 230 additions and 42 deletions
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123
mysql-test/suite/rpl/t/rpl_skip_replication.test
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@@ -9,20 +9,20 @@ GRANT ALTER,CREATE,DELETE,DROP,EVENT,INSERT,PROCESS,REPLICATION SLAVE,
connect(nonpriv, 127.0.0.1, nonsuperuser,, test, $SLAVE_MYPORT,);
connection nonpriv;
--error ER_SPECIFIC_ACCESS_DENIED_ERROR
SET GLOBAL replicate_events_marked_for_skip=0;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_MASTER;
disconnect nonpriv;
connection slave;
DROP USER'nonsuperuser'@'127.0.0.1';
SELECT @@global.replicate_events_marked_for_skip;
--error ER_SLAVE_MUST_STOP
SET GLOBAL replicate_events_marked_for_skip=0;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_SLAVE;
SELECT @@global.replicate_events_marked_for_skip;
STOP SLAVE;
--error ER_GLOBAL_VARIABLE
SET SESSION replicate_events_marked_for_skip=0;
SET SESSION replicate_events_marked_for_skip=FILTER_ON_MASTER;
SELECT @@global.replicate_events_marked_for_skip;
SET GLOBAL replicate_events_marked_for_skip=0;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_MASTER;
SELECT @@global.replicate_events_marked_for_skip;
START SLAVE;
@@ -37,6 +37,8 @@ CREATE TABLE t2 (a INT PRIMARY KEY, b INT) ENGINE=innodb;
INSERT INTO t1(a) VALUES (1);
INSERT INTO t2(a) VALUES (1);
# Test that master-side filtering works.
SET skip_replication=1;
CREATE TABLE t3 (a INT PRIMARY KEY, b INT) ENGINE=myisam;
@@ -59,12 +61,46 @@ DROP TABLE t3;
FLUSH NO_WRITE_TO_BINLOG LOGS;
sync_slave_with_master;
# Test that slave-side filtering works.
connection slave;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=1;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_SLAVE;
START SLAVE;
connection master;
SET skip_replication=1;
CREATE TABLE t3 (a INT PRIMARY KEY, b INT) ENGINE=myisam;
INSERT INTO t1(a) VALUES (3);
INSERT INTO t2(a) VALUES (3);
# Inject a rotate event in the binlog stream sent to slave (otherwise we will
# fail sync_slave_with_master as the last event on the master is not present
# on the slave).
FLUSH NO_WRITE_TO_BINLOG LOGS;
sync_slave_with_master;
connection slave;
SHOW TABLES;
SELECT * FROM t1;
SELECT * FROM t2;
connection master;
DROP TABLE t3;
FLUSH NO_WRITE_TO_BINLOG LOGS;
sync_slave_with_master;
connection slave;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=REPLICATE;
START SLAVE;
# Test that events with @@skip_replication=1 are not filtered when filtering is
# not set on slave.
connection master;
SET skip_replication=1;
CREATE TABLE t3 (a INT PRIMARY KEY, b INT) ENGINE=myisam;
INSERT INTO t3(a) VALUES(2);
sync_slave_with_master;
@@ -93,12 +129,12 @@ INSERT INTO t1 VALUES (3,0);
sync_slave_with_master;
connection slave;
# Since slave has @@replicate_events_marked_for_skip=1, it should have
# Since slave has @@replicate_events_marked_for_skip=REPLICATE, it should have
# applied all events.
SELECT * FROM t1 ORDER by a;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=0;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_MASTER;
let $SLAVE_DATADIR= `select @@datadir`;
connection master;
@@ -136,7 +172,7 @@ sync_slave_with_master;
connection slave;
STOP SLAVE;
SET GLOBAL sql_slave_skip_counter=2;
SET GLOBAL replicate_events_marked_for_skip=0;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_SLAVE;
START SLAVE;
connection master;
@@ -157,7 +193,8 @@ connection slave;
# The slave should have skipped the first three inserts (number 1 and 3 due
# to @@sql_slave_skip_counter=2, number 2 due to
# @@replicate_events_marked_for_skip=0). So only number 4 should be left.
# @@replicate_events_marked_for_skip=FILTER_ON_SLAVE). So only number 4
# should be left.
SELECT * FROM t1;
@@ -242,13 +279,79 @@ DROP FUNCTION foo;
DROP PROCEDURE bar;
DROP FUNCTION baz;
# Test that master-side filtering happens on the master side, and that
# slave-side filtering happens on the slave.
# First test that events do not reach the slave when master-side filtering
# is configured. Do this by replicating first with only the IO thread running
# and master-side filtering; then change to no filtering and start the SQL
# thread. This should still skip the events, as master-side filtering
# means the events never reached the slave.
connection master;
SET skip_replication= 0;
TRUNCATE t1;
sync_slave_with_master;
connection slave;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_MASTER;
START SLAVE IO_THREAD;
connection master;
SET skip_replication= 1;
INSERT INTO t1(a) VALUES (1);
SET skip_replication= 0;
INSERT INTO t1(a) VALUES (2);
--source include/save_master_pos.inc
connection slave;
--source include/sync_io_with_master.inc
STOP SLAVE IO_THREAD;
SET GLOBAL replicate_events_marked_for_skip=REPLICATE;
START SLAVE;
connection master;
sync_slave_with_master;
connection slave;
# Now only the second insert of (2) should be visible, as the first was
# filtered on the master, so even though the SQL thread ran without skipping
# events, it will never see the event in the first place.
SELECT * FROM t1;
# Now tests that when slave-side filtering is configured, events _do_ reach
# the slave.
connection master;
SET skip_replication= 0;
TRUNCATE t1;
sync_slave_with_master;
connection slave;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=FILTER_ON_SLAVE;
START SLAVE IO_THREAD;
connection master;
SET skip_replication= 1;
INSERT INTO t1(a) VALUES (1);
SET skip_replication= 0;
INSERT INTO t1(a) VALUES (2);
--source include/save_master_pos.inc
connection slave;
--source include/sync_io_with_master.inc
STOP SLAVE IO_THREAD;
SET GLOBAL replicate_events_marked_for_skip=REPLICATE;
START SLAVE;
connection master;
sync_slave_with_master;
connection slave;
# Now both inserts should be visible. Since filtering was configured to be
# slave-side, the event is in the relay log, and when the SQL thread ran we
# had disabled filtering again.
SELECT * FROM t1 ORDER BY a;
# Clean up.
connection master;
SET skip_replication=0;
DROP TABLE t1,t2;
connection slave;
STOP SLAVE;
SET GLOBAL replicate_events_marked_for_skip=1;
SET GLOBAL replicate_events_marked_for_skip=REPLICATE;
START SLAVE;
--source include/rpl_end.inc