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0a68328673
This is actually an existing problem in the old binlog implementation, and this patch is applicable to old binlog also. The problem is that RESET MASTER can run concurrently with binlog dump threads / connected slaves. This will remove the binlog from under the feet of the reader, which can cause all sorts of strange behaviour. This patch fixes the problem by disallowing to run RESET MASTER when dump threads (or other RESET MASTER or SHOW BINARY LOGS) are running. An error is thrown in this case, user must stop slaves and/or kill dump threads to make the RESET MASTER go through. A slave that connects in the middle of RESET MASTER will wait for it to complete. Fix a lot of test cases to kill any lingering dump threads before doing RESET MASTER, mostly just by sourcing include/kill_binlog_dump_threads.inc. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
487 lines
14 KiB
Text
487 lines
14 KiB
Text
include/master-slave.inc
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[connection master]
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connection master;
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call mtr.add_suppression("Timeout waiting for reply of binlog");
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call mtr.add_suppression("Read semi-sync reply");
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call mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT.");
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call mtr.add_suppression("mysqld: Got an error reading communication packets");
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connection slave;
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set sql_log_bin=0;
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call mtr.add_suppression("Semi-sync slave .* reply");
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call mtr.add_suppression("Slave SQL.*Request to stop slave SQL Thread received while applying a group that has non-transactional changes; waiting for completion of the group");
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set sql_log_bin=1;
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connection master;
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#
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# Uninstall semi-sync plugins on master and slave
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#
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connection slave;
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include/stop_slave.inc
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include/reset_slave.inc
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set global rpl_semi_sync_master_enabled= 0;
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set global rpl_semi_sync_slave_enabled= 0;
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connection master;
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include/kill_binlog_dump_threads.inc
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reset master;
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set global rpl_semi_sync_master_enabled= 0;
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set global rpl_semi_sync_slave_enabled= 0;
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#
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# Main test of semi-sync replication start here
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#
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connection master;
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set global rpl_semi_sync_master_timeout= 2000;
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[ default state of semi-sync on master should be OFF ]
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show variables like 'rpl_semi_sync_master_enabled';
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Variable_name Value
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rpl_semi_sync_master_enabled OFF
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[ enable semi-sync on master ]
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set global rpl_semi_sync_master_enabled = 1;
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show variables like 'rpl_semi_sync_master_enabled';
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Variable_name Value
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rpl_semi_sync_master_enabled ON
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[ status of semi-sync on master should be ON even without any semi-sync slaves ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 0
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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#
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# BUG#45672 Semisync repl: ActiveTranx:insert_tranx_node: transaction node allocation failed
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# BUG#45673 Semisynch reports correct operation even if no slave is connected
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#
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[ status of semi-sync on master should be OFF ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 0
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status OFF
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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reset master;
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connection slave;
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[ default state of semi-sync on slave should be OFF ]
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show variables like 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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rpl_semi_sync_slave_enabled OFF
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[ enable semi-sync on slave ]
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set global rpl_semi_sync_slave_enabled = 1;
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show variables like 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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rpl_semi_sync_slave_enabled ON
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include/start_slave.inc
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connection master;
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[ initial master state after the semi-sync slave connected ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 1
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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create table t1(a int) engine = ENGINE_TYPE;
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[ master state after CREATE TABLE statement ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 1
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select CONNECTIONS_NORMAL_SLAVE - CONNECTIONS_NORMAL_SLAVE as 'Should be 0';
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Should be 0
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0
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[ insert records to table ]
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insert t1 values (10);
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insert t1 values (9);
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insert t1 values (8);
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insert t1 values (7);
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insert t1 values (6);
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insert t1 values (5);
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insert t1 values (4);
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insert t1 values (3);
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insert t1 values (2);
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insert t1 values (1);
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[ master status after inserts ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 11
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connection slave;
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[ slave status after replicated inserts ]
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show status like 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status ON
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select count(distinct a) from t1;
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count(distinct a)
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10
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select min(a) from t1;
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min(a)
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1
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select max(a) from t1;
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max(a)
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10
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# BUG#50157
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# semi-sync replication crashes when replicating a transaction which
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# include 'CREATE TEMPORARY TABLE `MyISAM_t` SELECT * FROM `Innodb_t` ;
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connection master;
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SET SESSION AUTOCOMMIT= 0;
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CREATE TABLE t2(c1 INT) ENGINE=innodb;
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connection slave;
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connection master;
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BEGIN;
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# Even though it is in a transaction, this statement is binlogged into binlog
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# file immediately.
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CREATE TEMPORARY TABLE t3 SELECT c1 FROM t2 where 1=1;
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# These statements will not be binlogged until the transaction is committed
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INSERT INTO t2 VALUES(11);
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INSERT INTO t2 VALUES(22);
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COMMIT;
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DROP TABLE t2, t3;
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SET SESSION AUTOCOMMIT= 1;
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connection slave;
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#
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# Test semi-sync master will switch OFF after one transaction
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# timeout waiting for slave reply.
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#
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connection master;
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show status like "Rpl_semi_sync_master_status";
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Variable_name Value
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Rpl_semi_sync_master_status ON
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connection slave;
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include/stop_slave.inc
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connection master;
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include/kill_binlog_dump_threads.inc
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set global rpl_semi_sync_master_timeout= 2000;
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[ master status should be ON ]
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 14
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[ semi-sync replication of these transactions will fail ]
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insert into t1 values (500);
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[ master status should be OFF ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status OFF
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 1
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 14
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delete from t1 where a=10;
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delete from t1 where a=9;
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delete from t1 where a=8;
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delete from t1 where a=7;
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delete from t1 where a=6;
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delete from t1 where a=5;
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delete from t1 where a=4;
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delete from t1 where a=3;
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delete from t1 where a=2;
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delete from t1 where a=1;
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insert into t1 values (100);
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[ master status should be OFF ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status OFF
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 12
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 14
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#
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# Test semi-sync status on master will be ON again when slave catches up
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#
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connection slave;
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[ slave status should be OFF ]
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show status like 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status OFF
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include/start_slave.inc
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[ slave status should be ON ]
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show status like 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status ON
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select count(distinct a) from t1;
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count(distinct a)
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2
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select min(a) from t1;
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min(a)
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100
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select max(a) from t1;
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max(a)
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500
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connection master;
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[ master status should be ON again after slave catches up ]
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 12
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 14
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 1
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#
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# Test disable/enable master semi-sync on the fly.
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#
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drop table t1;
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connection slave;
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include/stop_slave.inc
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#
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# Flush status
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#
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connection master;
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[ Semi-sync master status variables before FLUSH STATUS ]
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SHOW STATUS LIKE 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 12
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SHOW STATUS LIKE 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 15
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FLUSH NO_WRITE_TO_BINLOG STATUS;
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[ Semi-sync master status variables after FLUSH STATUS ]
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SHOW STATUS LIKE 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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SHOW STATUS LIKE 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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connection master;
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show master logs;
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Log_name master-bin.000001
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File_size #
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show variables like 'rpl_semi_sync_master_enabled';
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Variable_name Value
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rpl_semi_sync_master_enabled ON
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[ disable semi-sync on the fly ]
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set global rpl_semi_sync_master_enabled=0;
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show variables like 'rpl_semi_sync_master_enabled';
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Variable_name Value
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rpl_semi_sync_master_enabled OFF
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status OFF
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[ enable semi-sync on the fly ]
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set global rpl_semi_sync_master_enabled=1;
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show variables like 'rpl_semi_sync_master_enabled';
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Variable_name Value
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rpl_semi_sync_master_enabled ON
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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#
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# Test RESET MASTER/SLAVE
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#
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connection slave;
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include/start_slave.inc
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connection master;
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create table t1 (a int) engine = ENGINE_TYPE;
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drop table t1;
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connection slave;
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include/stop_slave.inc
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[ test reset master ]
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connection master;
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include/kill_binlog_dump_threads.inc
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reset master;
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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connection slave;
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include/reset_slave.inc
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include/kill_binlog_dump_threads.inc
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connection slave;
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include/start_slave.inc
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connection master;
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connection slave;
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connection master;
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create table t1 (a int) engine = ENGINE_TYPE;
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insert into t1 values (1);
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insert into t1 values (2), (3);
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connection slave;
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select * from t1;
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a
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1
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2
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3
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connection master;
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[ master semi-sync status should be ON ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 3
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#
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# Start semi-sync replication without SUPER privilege
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#
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connection slave;
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include/stop_slave.inc
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include/reset_slave.inc
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connection master;
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include/kill_binlog_dump_threads.inc
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reset master;
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include/kill_binlog_dump_threads.inc
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set sql_log_bin=0;
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grant replication slave on *.* to rpl@127.0.0.1 identified by 'rpl_password';
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flush privileges;
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set sql_log_bin=1;
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connection slave;
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grant replication slave on *.* to rpl@127.0.0.1 identified by 'rpl_password';
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flush privileges;
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change master to master_user='rpl',master_password='rpl_password';
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include/start_slave.inc
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show status like 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status ON
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connection master;
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connection slave;
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connection master;
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[ master semi-sync should be ON ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 1
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 0
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insert into t1 values (4);
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insert into t1 values (5);
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[ master semi-sync should be ON ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 1
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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show status like 'Rpl_semi_sync_master_no_tx';
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Variable_name Value
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Rpl_semi_sync_master_no_tx 0
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show status like 'Rpl_semi_sync_master_yes_tx';
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Variable_name Value
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Rpl_semi_sync_master_yes_tx 2
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#
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# Test semi-sync slave connect to non-semi-sync master
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#
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connection slave;
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include/stop_slave.inc
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SHOW STATUS LIKE 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status OFF
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connection master;
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include/kill_binlog_dump_threads.inc
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[ Semi-sync status on master should be ON ]
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status ON
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set global rpl_semi_sync_master_enabled= 0;
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connection slave;
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SHOW VARIABLES LIKE 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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rpl_semi_sync_slave_enabled ON
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include/start_slave.inc
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connection master;
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insert into t1 values (8);
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[ master semi-sync clients should be 1, status should be OFF ]
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show status like 'Rpl_semi_sync_master_clients';
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Variable_name Value
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Rpl_semi_sync_master_clients 1
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show status like 'Rpl_semi_sync_master_status';
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Variable_name Value
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Rpl_semi_sync_master_status OFF
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connection slave;
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show status like 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status ON
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connection slave;
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include/stop_slave.inc
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connection master;
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set global rpl_semi_sync_master_enabled= 0;
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connection slave;
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SHOW VARIABLES LIKE 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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rpl_semi_sync_slave_enabled ON
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include/start_slave.inc
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connection master;
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insert into t1 values (10);
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connection slave;
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#
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# Test non-semi-sync slave connect to semi-sync master
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#
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connection master;
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set global rpl_semi_sync_master_timeout= 5000;
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set global rpl_semi_sync_master_enabled= 1;
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connection slave;
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include/stop_slave.inc
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SHOW STATUS LIKE 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status OFF
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[ uninstall semi-sync slave plugin ]
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set global rpl_semi_sync_slave_enabled= 0;
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[ reinstall semi-sync slave plugin and disable semi-sync ]
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SHOW VARIABLES LIKE 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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rpl_semi_sync_slave_enabled OFF
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SHOW STATUS LIKE 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status OFF
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include/start_slave.inc
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SHOW STATUS LIKE 'Rpl_semi_sync_slave_status';
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Variable_name Value
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Rpl_semi_sync_slave_status OFF
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#
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# Clean up
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#
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connection slave;
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include/stop_slave.inc
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set global rpl_semi_sync_slave_enabled= 0;
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connection master;
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set global rpl_semi_sync_master_enabled= 0;
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connection slave;
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change master to master_user='root',master_password='';
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include/start_slave.inc
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connection master;
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drop table t1;
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connection slave;
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connection master;
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drop user rpl@127.0.0.1;
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flush privileges;
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set global rpl_semi_sync_master_timeout= default;
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include/rpl_end.inc
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