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When we delete the slave's temp tables from memory, we reset

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rli->save_temporary_tables and slave_open_temp_tables
(in old 4.0 you could make "SHOW STATUS LIKE 'slave_open_temp_tables'" grow
indefinitely by doing RESET SLAVE and replicating always the same CREATE
TEMPORARY TABLE).
It's critical to reset save_temporary_tables to 0 (otherwise you may later
read memory which has been freed) so this changeset should go into 4.1.


mysql-test/r/rpl_reset_slave.result:
  result update
mysql-test/t/rpl_reset_slave.test:
  test for RESET SLAVE and creating twice the same temp table in the slave.
sql/slave.cc:
  when we delete the slave's temp tables (when slave server shuts down and when
  RESET SLAVE), we reset 2 variables: rli->save_temporary_tables & slave_open_temp_tables.
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unknown
2003-11-03 18:24:01 +01:00
parent b920ab261e
commit 5ec3a67132
3 changed files with 30 additions and 0 deletions
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10
mysql-test/r/rpl_reset_slave.result
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@ -20,3 +20,13 @@ start slave;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.001 79 slave-relay-bin.002 120 master-bin.001 Yes Yes 0 0 79 120
stop slave;
reset slave;
start slave;
create temporary table t1 (a int);
stop slave;
reset slave;
start slave;
show status like 'slave_open_temp_tables';
Variable_name Value
Slave_open_temp_tables 1