mirror of
https://github.com/MariaDB/server.git
synced 2025-01-21 06:22:28 +01:00
a1bfae20cb
The root cause of the crash is that a TranxNode is freed before it is used. A TranxNode is allocated and inserted into the active list each time a log event is written and flushed into the binlog file. The memory for TranxNode is allocated with thd_alloc and will be freed at the end of the statement. The after_commit/after_rollback callback was supposed to be called before the end of each statement and remove the node from the active list. However this assumption is not correct in all cases(e.g. call 'CREATE TEMPORARY TABLE myisam_t SELECT * FROM innodb_t' in a transaction and delete all temporary tables automatically when a session closed), and can cause the memory allocated for TranxNode be freed before it was removed from the active list. So The TranxNode pointer in the active list would become a wild pointer and cause the crash. After this patch, We have a class called a TranxNodeAllocate which manages the memory for allocating and freeing TranxNode. It uses my_malloc to allocate memory. sql/rpl_handler.cc: params are not initialized.
459 lines
13 KiB
Text
459 lines
13 KiB
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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#
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# Uninstall semi-sync plugins on master and slave
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#
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include/stop_slave.inc
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reset slave;
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UNINSTALL PLUGIN rpl_semi_sync_slave;
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UNINSTALL PLUGIN rpl_semi_sync_master;
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reset master;
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set sql_log_bin=0;
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UNINSTALL PLUGIN rpl_semi_sync_slave;
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UNINSTALL PLUGIN rpl_semi_sync_master;
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set sql_log_bin=1;
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#
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# Main test of semi-sync replication start here
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#
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[ on master ]
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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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#
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# INSTALL PLUGIN semi-sync on slave
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#
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[ on 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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[ on 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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[ 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 301
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[ on 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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300
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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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300
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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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[ on master ]
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SET SESSION AUTOCOMMIT= 0;
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CREATE TABLE t2(c1 INT) ENGINE=innodb;
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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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#
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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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include/stop_slave.inc
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[ on master ]
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[ master 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 304
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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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[ 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 304
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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 302
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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 304
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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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[ on 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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[ on 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_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 302
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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 304
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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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[ on 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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[ 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 302
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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 305
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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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[ on 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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[ on slave ]
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include/start_slave.inc
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[ on master ]
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create table t1 (a int) engine = ENGINE_TYPE;
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drop table t1;
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show status like 'Rpl_relay%';
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Variable_name Value
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[ test reset master ]
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[ on master]
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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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[ on slave ]
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include/stop_slave.inc
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reset slave;
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include/start_slave.inc
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[ on 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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[ on 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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[ on 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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include/stop_slave.inc
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reset slave;
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[ on master ]
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reset master;
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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';
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flush privileges;
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set sql_log_bin=1;
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[ on slave ]
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grant replication slave on *.* to rpl@127.0.0.1 identified by 'rpl';
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flush privileges;
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change master to master_user='rpl',master_password='rpl';
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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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[ on 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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[ on 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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[ on master ]
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[ Semi-sync status on master 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 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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set global rpl_semi_sync_master_enabled= 0;
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[ on 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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[ on 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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[ on 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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include/stop_slave.inc
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[ on master ]
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set sql_log_bin=0;
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UNINSTALL PLUGIN rpl_semi_sync_master;
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set sql_log_bin=1;
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SHOW VARIABLES LIKE 'rpl_semi_sync_master_enabled';
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Variable_name Value
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[ on 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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[ on master ]
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insert into t1 values (10);
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[ on 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 OFF
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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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set sql_log_bin=0;
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INSTALL PLUGIN rpl_semi_sync_master SONAME 'SEMISYNC_MASTER_PLUGIN';
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set global rpl_semi_sync_master_timeout= 5000;
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/* 5s */
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set sql_log_bin=1;
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set global rpl_semi_sync_master_enabled= 1;
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[ on 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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UNINSTALL PLUGIN rpl_semi_sync_slave;
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SHOW VARIABLES LIKE 'rpl_semi_sync_slave_enabled';
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Variable_name Value
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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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include/stop_slave.inc
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[ reinstall semi-sync slave plugin and disable semi-sync ]
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INSTALL PLUGIN rpl_semi_sync_slave SONAME 'SEMISYNC_SLAVE_PLUGIN';
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set global rpl_semi_sync_slave_enabled= 0;
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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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include/stop_slave.inc
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UNINSTALL PLUGIN rpl_semi_sync_slave;
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UNINSTALL PLUGIN rpl_semi_sync_master;
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|
include/start_slave.inc
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drop table t1;
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drop user rpl@127.0.0.1;
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flush privileges;
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