Hi, 1) Try to reproduce the situation with pure myscl client (command-line client). 2) There is no any MySQL parameter that change life time of temporary tables. Only two parameter that defines life time for connection to mysql: - interactive_timeout The number of seconds the server waits for activity on an interactive connection before closing it. An interactive client is defined as a client that uses the CLIENT_INTERACTIVE option to mysql_real_connect(). See also wait_timeout.
- wait_timeout The number of seconds the server waits for activity on a not interactive connection before closing it. On thread startup SESSION.WAIT_TIMEOUT is initialized from GLOBAL.WAIT_TIMEOUT or GLOBAL.INTERACTIVE_TIMEOUT depending on the type of client (as defined by the CLIENT_INTERACTIVE connect option). See also interactive_timeout. But by default they are quite big: 28800 seconds. Mikhail. ----- Original Message ----- From: "Massimo Petrini" <[EMAIL PROTECTED]> To: "Mikhail Entaltsev" <[EMAIL PROTECTED]> Sent: Friday, January 23, 2004 5:11 PM Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 from client running xp > 1) yes, I am sure because the problem is reproducible also with a sql , > without to use the msaccess; if you use mysqlfront you can create the table, > insert data, view data. But if you move your point of view on another table > you lost the connection. > 2) to connect a temporary table in mysql from msaccess, it is necessary to > create the table on server not temporary, connect the table from msaccess, > drop the table on server; this is necessary only once; after use a sql > statement from msaccess, via sql pass through to create the temporary. Now > youn can insert data and use as a normal table. When you close the msaccess > session the temporary table is dropped immediately; otherwise if you leave > the session msaccess opened, but not in use, after some minutes the table is > dropped. I think there is a variable to set in my.ini, but I don't > understand which is the correct name . > > So I don't understand. > > ----- Original Message ----- > From: "Mikhail Entaltsev" <[EMAIL PROTECTED]> > To: "Massimo Petrini" <[EMAIL PROTECTED]> > Cc: <[EMAIL PROTECTED]> > Sent: Thursday, January 22, 2004 2:16 PM > Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > 2 questions: > > > > 1. Are you sure that client or someone between client and MySQl server > > doesn't close connection? > > Because > > > the client have still the result of the query on the screen > > > > is not a proof that connection is still active. > > > > 2. How do you link your msaccess application with MySQL server? > > Are you sure that your application or someone between doesn't use > > connections pool? > > > > Mikhail. > > > > ----- Original Message ----- > > From: "Massimo Petrini" <[EMAIL PROTECTED]> > > To: "Mikhail Entaltsev" <[EMAIL PROTECTED]> > > Cc: <[EMAIL PROTECTED]> > > Sent: Thursday, January 22, 2004 1:35 PM > > Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > > > > We have a server running NT4 with mysql 4.017 (with the my.ini as in > > > previuous mail). In the network the client (the single pc ) run msaccess > > > application linked to mysql database. In such case we use a temporary > > table, > > > created as follow > > > > > > CREATE TEMPORARY TABLE wrk_AlzateIntervalli(Lotto CHAR(10) NOT > NULL,Indice > > > CHAR(3) NOT NULL,NMisura SMALLINT NOT NULL,IndiceIntv CHAR(1) NOT > > > NULL,ValMin REAL NULL,ValMax REAL NULL, PRIMARY KEY (Lotto, Indice, > > NMisura, > > > IndiceIntv)); > > > > > > The statement sql is lunched from the client to the server; it create a > > > temporary table used only from the client creator. > > > Is clear for you ? > > > Thanks > > > > > > > > > ----- Original Message ----- > > > From: "Mikhail Entaltsev" <[EMAIL PROTECTED]> > > > To: "Massimo Petrini" <[EMAIL PROTECTED]> > > > Cc: <[EMAIL PROTECTED]> > > > Sent: Thursday, January 22, 2004 11:12 AM > > > Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > > > > > > > > no; because the client have still the result of the query on the > > screen > > > > and > > > > > on the server the thread is still existent in sleep mode. > > > > > > > > could you explain in details what is your system configuration? > > > > what is the client of MySQL server? > > > > > > > > > > > > ----- Original Message ----- > > > > From: "Massimo Petrini" <[EMAIL PROTECTED]> > > > > To: "Mikhail Entaltsev" <[EMAIL PROTECTED]> > > > > Cc: <[EMAIL PROTECTED]> > > > > Sent: Thursday, January 22, 2004 11:08 AM > > > > Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > > > > > > > > > > no; because the client have still the result of the query on the > > screen > > > > and > > > > > on the server the thread is still existent in sleep mode. > > > > > > > > > > ----- Original Message ----- > > > > > From: "Mikhail Entaltsev" <[EMAIL PROTECTED]> > > > > > To: "Massimo Petrini" <[EMAIL PROTECTED]>; > > > > <[EMAIL PROTECTED]> > > > > > Sent: Thursday, January 22, 2004 10:05 AM > > > > > Subject: Re: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > > > > > > > > > > > > > Hi Massimo, > > > > > > > > > > > > May be after some minutes of inactivity client closes connection > to > > > > MySQL > > > > > > server? > > > > > > In this case MySQL deletes all temp tables that were created by > this > > > > > client. > > > > > > > > > > > > Best regards, > > > > > > Mikhail. > > > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > > > From: "Massimo Petrini" <[EMAIL PROTECTED]> > > > > > > To: <[EMAIL PROTECTED]> > > > > > > Sent: Thursday, January 22, 2004 7:30 AM > > > > > > Subject: temporary table in 4.0.17 on Windows W2000 and NT4 > > > > > > > > > > > > > > > > > > > We have a problem to have "a long life" for the temporary table > on > > > > > innodb > > > > > > > mode. We create the table, but after some minutes of inactivity > > the > > > > > > sistem > > > > > > > drops the table. My.ini in as follow. Which is the parameter to > > > > correct > > > > > > the > > > > > > > problem ? > > > > > > > Tks > > > > > > > > > > > > > > Massimi > > > > > > > ----------------- > > > > > > > # Example mysql config file. > > > > > > > # Copy this file to c:\my.cnf to set global options > > > > > > > # > > > > > > > # One can use all long options that the program supports. > > > > > > > # Run the program with --help to get a list of available options > > > > > > > > > > > > > > # This will be passed to all mysql clients > > > > > > > [client] > > > > > > > #password=my_password > > > > > > > port=3306 > > > > > > > #socket=MySQL > > > > > > > > > > > > > > # Here is entries for some specific programs > > > > > > > # The following values assume you have at least 32M ram > > > > > > > > > > > > > > # The MySQL server > > > > > > > [mysqld] > > > > > > > port=3306 > > > > > > > #socket=MySQL > > > > > > > skip-locking > > > > > > > set-variable=key_buffer=16K > > > > > > > set-variable=max_allowed_packet=16M > > > > > > > set-variable=thread_stack=64K > > > > > > > set-variable=table_cache=4 > > > > > > > set-variable=sort_buffer=1024K > > > > > > > set-variable=net_buffer_length=2K > > > > > > > > > > > > > > > > > > > > > > > > > > > > #PER REPLICA > > > > > > > server-id=19 > > > > > > > master-host=pissarro > > > > > > > report-host=pissarro > > > > > > > master-user=root > > > > > > > #skip-slave-start > > > > > > > replicate-wild-ignore-table=OMTWRK.WRK_% > > > > > > > replicate-wild-ignore-table=omtwrk.wrk_% > > > > > > > set-variable=slave-net-timeout=172800 > > > > > > > > > > > > > > > > > > > > > # Uncomment the following if you want to log updates > > > > > > > #log-bin > > > > > > > > > > > > > > # Uncomment the following rows if you move the MySQL > distribution > > to > > > > > > another > > > > > > > # location > > > > > > > basedir=C:\mysql\ > > > > > > > #datadir=C:\AnnaNoBck\DATI\MySQL\data\ > > > > > > > datadir=D:\applicaz\mysql\Data\ > > > > > > > > > > > > > > # > > > > > > > log-error=d:\applicaz\mysql\data\mysql.err > > > > > > > > > > > > > > # Uncomment the following if you are NOT using BDB tables > > > > > > > skip-bdb > > > > > > > > > > > > > > # Uncomment the following if you are using Innobase tables > > > > > > > innodb_data_file_path=\InnoData\HymnOMT:10M:autoextend > > > > > > > > > > > > > > #innodb_data_home_dir=C:\AnnaNoBck\DATI\MySQL\InnoDB > > > > > > > > #innodb_log_group_home_dir=C:\AnnaNoBck\DATI\MySQL\InnoDB\InnoLog > > > > > > > #innodb_log_arch_dir=C:\AnnaNoBck\DATI\MySQL\InnoDB\InnoLog > > > > > > > > > > > > > > innodb_data_home_dir=D:\applicaz\mysql\InnoDB > > > > > > > innodb_log_group_home_dir=D:\applicaz\mysql\InnoDB\InnoLog > > > > > > > innodb_log_arch_dir=D:\applicaz\mysql\InnoDB\InnoLog > > > > > > > > > > > > > > set-variable=innodb_mirrored_log_groups=1 > > > > > > > set-variable=innodb_log_files_in_group=3 > > > > > > > set-variable=innodb_log_file_size=5M > > > > > > > set-variable=innodb_log_buffer_size=8M > > > > > > > innodb_flush_log_at_trx_commit=1 > > > > > > > innodb_log_archive=0 > > > > > > > set-variable=innodb_buffer_pool_size=16M > > > > > > > set-variable=innodb_additional_mem_pool_size=10M > > > > > > > set-variable=innodb_file_io_threads=4 > > > > > > > set-variable=innodb_lock_wait_timeout=50 > > > > > > > default-table-type=innodb > > > > > > > > > > > > > > #solo >=4.0.14 permette di mantenere alla definizione di > > > > max_binlog_size > > > > > > la > > > > > > > dimensione del file di relay > > > > > > > #set-variable=max_relay_log_size=0 > > > > > > > > > > > > > > [mysqldump] > > > > > > > quick > > > > > > > set-variable=max_allowed_packet=16M > > > > > > > > > > > > > > [mysql] > > > > > > > no-auto-rehash > > > > > > > # Remove the next comment character if you are not familiar with > > SQL > > > > > > > #safe-updates > > > > > > > > > > > > > > [isamchk] > > > > > > > set-variable=key_buffer=8M > > > > > > > set-variable=sort_buffer=8M > > > > > > > > > > > > > > [myisamchk] > > > > > > > set-variable=key_buffer=8M > > > > > > > set-variable=sort_buffer=8M > > > > > > > > > > > > > > [mysqlhotcopy] > > > > > > > interactive-timeout > > > > > > > > > > > > > > [WinMySQLAdmin] > > > > > > > Server=C:/mysql/bin/mysqld-max-nt.exe > > > > > > > QueryInterval=10 > > > > > > > > > > > > > > --------------------------------------------------------- > > > > > > > Massimo Petrini > > > > > > > c/o Omt spa > > > > > > > Via Ferrero 67/a > > > > > > > 10090 Cascine Vica (TO) > > > > > > > Tel. +39 011 9505334 > > > > > > > Fax +39 011 9575474 > > > > > > > E-mail [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > MySQL General Mailing List > > > > > > > For list archives: http://lists.mysql.com/mysql > > > > > > > To unsubscribe: > > > > > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > MySQL General Mailing List > > > > > > For list archives: http://lists.mysql.com/mysql > > > > > > To unsubscribe: > > > > > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > MySQL General Mailing List > > > > > For list archives: http://lists.mysql.com/mysql > > > > > To unsubscribe: > > > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > -- > > > > MySQL General Mailing List > > > > For list archives: http://lists.mysql.com/mysql > > > > To unsubscribe: > > > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > > > > > > > > > > > -- > > > MySQL General Mailing List > > > For list archives: http://lists.mysql.com/mysql > > > To unsubscribe: > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > > > > > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
