.NET Connector Output Values
I have the following code: ... query = INSERT INTO a_test_table (a_test_table_id,name,last_mod_date,create_date) VALUES (?a_test_table_id,?name,?last_mod_date,?create_date); ... command.Prepare(); ... command.Parameters.Add(?a_test_table_id, MySqlDbType.Int32); command.Parameters[?a_test_table_id].Direction = ParameterDirection.Output; command.Parameters.Add(?name, this._name); command.Parameters.Add(?last_mod_date, DateTime.Now); command.Parameters.Add(?create_date, DateTime.Now); command.ExecuteNonQuery(); this.ID = System.Convert.ToInt32(command.Parameters[?a_test_table_id].Value.ToString()); When I try to retrieve the return value for ?a_test_table_id, I get an error saying the Value property is NULL. The column in the database is set to auto-increment. Shouldn't this parameter be populated automatically? Any ideas why this is happening? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Band width consume
Dear Friends Is their an Page with data of how much bandwidth mysql consume when using remote servers? Regards Luiz -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: /etc/init.d/mysql hangs
On 12/3/05, Gleb Paharenko [EMAIL PROTECTED] wrote: Hello. Check if you're able to start server manually using mysqld or mysqld_safe commands. Research error logs. See: http://dev.mysql.com/doc/refman/5.0/en/starting-server.html Thanks. Running mysqld directly showed me the problem which is a full hard disk partition. Timothy
Band width consume
Dear Friends Is their an Page with data of how much bandwidth mysql consume when using remote servers? Regards Luiz -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Band width consume
I don't have any stats but I would assume it's as big as your select statement plus as big as the result set. Mike - Original Message - From: Luiz Rafael Culik Guimaraes [EMAIL PROTECTED] To: mysql@lists.mysql.com Sent: December 4, 2005 7:02 AM Subject: Band width consume Dear Friends Is their an Page with data of how much bandwidth mysql consume when using remote servers? Regards Luiz -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 2005-12-02 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Band width consume
The bandwidth that mysql itself consumes is negligible. If you are connecting to a server across the net the majority of your bandwidth consumed is your result sets coming back. If you are talking about a single database then figure out what your average result set is and multiply that times the number of times you make that call in a given time period. You'll be real close. The only other bandwidth consumed is your setup. If you are using SSL then it's a little more but not much. There are the bytes it takes to transmit your user name and password and the bytes it takes for the server to respond positively. But all of these pale in comparison to most recordsets. =C= | | Cal Evans | http://www.calevans.com | Luiz Rafael Culik Guimaraes wrote: Dear Friends Is their an Page with data of how much bandwidth mysql consume when using remote servers? Regards Luiz -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
parse error creating table
I have been trying to create a table but mysql 5.0.15-nt-max is having a problem parsing the statement. Anyone know what the problem is in the syntax of the following table creation statement: CREATE TABLE registration_and_attendance ( idSERIAL NOT NULL UNIQUE, firstnameVARCHAR(256) NOT NULL, middlenameTEXT, lastnameVARCHAR(256), suffix TEXT, sf182_receivedBOOLEAN NOT NULL DEFAULT TRUE, registrant_email_address TEXT, cc_email_list TEXT, bureau_id INTEGER REFERENCES bureaus(id), office TEXT, class_id INTEGER NOT NULL REFERENCES classes(id), schedule_id INTEGER REFERENCES schedules(id), start_date DATE, end_date DATE, enrolled BOOLEAN, attendedBOOLEAN, completed BOOLEAN, cancelledBOOLEAN DEFAULT FALSE, cancelled_commentsTEXT, comments TEXT, email_confirmation_sent BOOLEAN NOT NULL, employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, last_user_updated TEXT, waitlisted BOOLEAN DEFAULT FALSE, overflow_registrantBOOLEAN DEFAULT FALSE, attach_hotel_listing_directions BOOLEAN, instructor_legacy TEXT, time_legacy TIME WITHOUT TIME ZONE, ssn_legacy TEXT, position_grade_title TEXT, office_phone_legacy TEXT, contractor_legacy BOOLEAN, no_show_legacy BOOLEAN, status_legacy TEXT, funding_id INTEGER REFERENCES funding_types(id), PRIMARY KEY (firstname, lastname, class_id, start_date, end_date) ); I get the following error message with the above statement but I can't figure out what the problem is: ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NOT N ULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, l' at line 23 Thanks, Ferindo -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
INSERTS slower after upgrade from 4.0 to 5.0?
Hello! I wanted to upgrade from 4.0.16 to 5.0.16, but already notized a slow performance on restoring data with INSERTS. When dumping a table with mysqldump (4.0.16) and then restoring it with mysql , which consists only of INSERTS, the duration increases. For test reasons I have tried it with 2 tables and different mysql versions: test_01 = CREATE TABLE test_01 ( ID int(6) unsigned NOT NULL auto_increment, Name varchar(60) NOT NULL default '', PRIMARY KEY (ID) ) TYPE=MyISAM; 1.284.256 rows, dump file size 69 MB test_02 = CREATE TABLE test_02 ( ID int(6) unsigned NOT NULL auto_increment, Freq int(5) unsigned NOT NULL default '0', UK0 tinyint(2) NOT NULL default '0', UK1 tinyint(2) NOT NULL default '0', UK2 tinyint(2) NOT NULL default '0', UK3 tinyint(2) NOT NULL default '0', UK4 tinyint(2) NOT NULL default '0', UK5 tinyint(2) NOT NULL default '0', UG1 tinyint(2) NOT NULL default '0', UG2 tinyint(2) NOT NULL default '0', UG3 tinyint(2) NOT NULL default '0', UG4 tinyint(2) NOT NULL default '0', UG5 tinyint(2) NOT NULL default '0', UG6 tinyint(2) NOT NULL default '0', HK0 tinyint(2) NOT NULL default '0', HK1 tinyint(2) NOT NULL default '0', HK2 tinyint(2) NOT NULL default '0', HK3 tinyint(2) NOT NULL default '0', HK4 tinyint(2) NOT NULL default '0', HK5 tinyint(2) NOT NULL default '0', HG1 tinyint(2) NOT NULL default '0', HG2 tinyint(2) NOT NULL default '0', HG3 tinyint(2) NOT NULL default '0', HG4 tinyint(2) NOT NULL default '0', HG5 tinyint(2) NOT NULL default '0', HG6 tinyint(2) NOT NULL default '0', WK0 tinyint(2) NOT NULL default '0', WK1 tinyint(2) NOT NULL default '0', WK2 tinyint(2) NOT NULL default '0', WK3 tinyint(2) NOT NULL default '0', WK4 tinyint(2) NOT NULL default '0', WK5 tinyint(2) NOT NULL default '0', WG1 tinyint(2) NOT NULL default '0', WG2 tinyint(2) NOT NULL default '0', WG3 tinyint(2) NOT NULL default '0', WG4 tinyint(2) NOT NULL default '0', WG5 tinyint(2) NOT NULL default '0', WG6 tinyint(2) NOT NULL default '0', PRIMARY KEY (ID) ) TYPE=MyISAM; 1.284.256 rows, dump file size 127 MB As you can see no other indexes than PRIMARY KEY are used. My configuration: AMD-1200 768 MB RAM Windows 2000 Connection via named pipe table type MyISAM used server is mysqld-nt from no-install zip version Start server with: mysqld-nt --standalone Important options from my.ini for 4.0 and 4.1 which I used: --- [mysqld] enable-named-pipe skip-locking default-character-set=latin1 set-variable = key_buffer=16M set-variable = max_allowed_packet=1M set-variable = thread_stack=128K set-variable = flush_time=1800 Important options from my.ini for 5.0 which I used: --- I took my-large.ini as base. enable-named-pipe skip-locking skip-safemalloc skip-networking skip-external-locking skip-innodb I switched off all logs. Comparing: Version - test_01 - test_02 4.0.16 - 24 sec - 1:55 min 4.0.25 - 25 sec - 1:53 min 4.1.03b - 34 sec - 2:19 min 4.1.15 - 31 sec - 2:14 min 5.0.03b - 34 sec - 3:28 min 5.0.15 - 37 sec - 3:26 min 5.0.16 - 38 sec - 3:28 min I tried out some other adviced performance tunings, but got no improvement. I have noticed that it is not a matter of index, but a matter of data volume which is restored. So my questions are why became INSERTS slower and is there some option to make them faster in 5.0 as they were in 4.0? Thank you for your answer in advance! Helmuth -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
triggers? when they execute and locking
Im am trying to implement a task running system with mysql and Im coming across a few problems with what I am trying to do. Simply I am trying to insert a list of tasks into the DB for various computers to run, I want to track when they ran and where they ran. I also have to limit some of the types of tasks that can run, so no more than 5 of TYPEA can run concurrently. What i have is a table called tasks TID (int) status enum(waiting, completed, failed) ResourceID (int) task descriptor varchar (so I know what to run) I also have a table Resource ResourceID (int) total (int) used(int) So I do a select select * from tasks left join resource on tasks.resourceID=Resource.Resource.id where status='waiting' and ((resource.used=Resource.total +1) or resource.id in null) limit 1 for update; Next my code runs an update update tasks set status='waiting' where TID=value from above; NOTE: that I have to use Resource.used=Resource.total +1 because Resource.usedResource.total does not seem to be equivilent Though I still need to update the Resource counter. So I have a trigger on BEFORE UPDATE tasks; That calls a Stored procedure. that increments the Resource.used The Way I understand it the order for operations is Select Triggered from Update Stored Procedure (called from the trigger) Update And rows used in the Select should be locked until after the update. This all happens very fast but when I have around 10 threads all connected to the DB running tasks, I tend to find that the locking does not work. The Trigger that exists before UPDATE actualy happens after. Is this a bug or is it meant to be like this? bd
Re: parse error creating table
Ferindo One problem is: employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, NOT NULL should be before REFERENCES. Also, in: last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, (i) NOT NULL is superfluous since the default is given by CURRENT_TIMESTAMP. (ii) specifying DEFAULT CURRENT_TIMESTAMP defeats auto-resetting of the timestamp on updates. Is that what you want? To get auto-setting on INSERTs and UPDATEs, just write last_updated TIMESTAMP, Also the manual doesn't mention TIME WITHOUT TIME ZONE. Are you thinking of PostgreSQL? PB - Ferindo Middleton Jr wrote: I have been trying to create a table but mysql 5.0.15-nt-max is having a problem parsing the statement. Anyone know what the problem is in the syntax of the following table creation statement: CREATE TABLE registration_and_attendance ( idSERIAL NOT NULL UNIQUE, firstnameVARCHAR(256) NOT NULL, middlenameTEXT, lastnameVARCHAR(256), suffix TEXT, sf182_receivedBOOLEAN NOT NULL DEFAULT TRUE, registrant_email_address TEXT, cc_email_list TEXT, bureau_id INTEGER REFERENCES bureaus(id), office TEXT, class_id INTEGER NOT NULL REFERENCES classes(id), schedule_id INTEGER REFERENCES schedules(id), start_date DATE, end_date DATE, enrolled BOOLEAN, attendedBOOLEAN, completed BOOLEAN, cancelledBOOLEAN DEFAULT FALSE, cancelled_commentsTEXT, comments TEXT, email_confirmation_sent BOOLEAN NOT NULL, employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, last_user_updated TEXT, waitlisted BOOLEAN DEFAULT FALSE, overflow_registrantBOOLEAN DEFAULT FALSE, attach_hotel_listing_directions BOOLEAN, instructor_legacy TEXT, time_legacy TIME WITHOUT TIME ZONE, ssn_legacy TEXT, position_grade_title TEXT, office_phone_legacy TEXT, contractor_legacy BOOLEAN, no_show_legacy BOOLEAN, status_legacy TEXT, funding_id INTEGER REFERENCES funding_types(id), PRIMARY KEY (firstname, lastname, class_id, start_date, end_date) ); I get the following error message with the above statement but I can't figure out what the problem is: ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NOT N ULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, l' at line 23 Thanks, Ferindo -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 12/2/2005 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
ERROR 2003 (HY000): Can't connect to MySQL server on 'gandalf' (111)
Hi, I've been dealing with this problem for a week now without resolution. I'm running an application called mythtv which uses mysql as its database. I've installed mythtv and mysql dozens of times without any problem. I'd been running two Mandrake 10.1 systems for the last nine months. One, gandalf, was the mythtv backend server which also runs mysql. The other is frodo, which runs the mythtfrontend ( client ) and connects to the backend. It must also connect to the mysql DB. MySQL-4.0.20-3mdk.i586.rpm comes with the Mandrake 10.1 distribution. I don't know which version of mysql that equates to. I first installed Mandrivia 2006 on the client system, which comes with Mysql 4.1.2 ( MySQL-4.1.12-3mdk.i586.rpm ). I did an install, not an upgrade. I could still connect to gandalf with: mysql -umythtv -pmythtv -hgandalf mythconverg I then did a mysqldump on mythconverg and install Mandrivia 2006 on server gandalf. I restored the mythconverg; Now, I get: [EMAIL PROTECTED] mysql -u mythtv -pmythtv -h gandalf mythconverg ERROR 2003 (HY000): Can't connect to MySQL server on 'gandalf' (111) I then tried granting privledges to mythconverg using on the server gandalf: # mysql -u root mythconverg mysql grant all on mythconverg.* to mythtv@% identified by mythtv; mysql flush privileges; Still can't connect. I booted off the old installation and did a mysql dump of mysql database and did inserts of the appropriate tables, like the user table. Still can't connect. I've droped the mythconverg database, recreated a skeleton of it, granted the open privledges and still can not connect to it. Another fact: on the server gandalf, I can connect to the database as localhost, but not if I specify the host: gandalf# mysql -u mythtv -pmythtv mythconverg Success!! gandalf# mysql -u mythtv -pmythtv -h gandalf mythconvergFailure!! gandalf# mysql -u mythtv -pmythtv -h 10.0.1.40 mythconverg Failure!! gandalf# mysql -u mythtv -pmythtv -h 127.0.0.1 mythconverg Success!! gandalf# mysql -u mythtv -pmythtv -h localhost mythconverg Success!! I've already check my /etc/my.cnf file for a binding line. Its not there. I also found an item online that indicated adding: skip-innodb set-variable=thread_stack=256k to /etc/my.cnf was needed for mysql under Mandrake. Still no help. Also, I can resolve the name/ip of both hosts from both hosts. I can ping each host ( by name ) both ways. I can ssy ( by name ) between both hosts. Thanks, Mike __ Start your day with Yahoo! - Make it your home page! http://www.yahoo.com/r/hs -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: parse error creating table
Thanks Peter. I did originally use this table in a Postgresql db. Thanks for you advice. Your suggestions below allowed me to create this table and I learned a thing t two about proper usage of the TIMESTAMP data type. The intended effect is to get a timestamp field that inserts the current system time on inserts and continues to update the field with the current timestamp on updates without the application or use needing to specify it are you saying that the timestamp attribute alone will do that? Ferindo Peter Brawley wrote: Ferindo One problem is: employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, NOT NULL should be before REFERENCES. Also, in: last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, (i) NOT NULL is superfluous since the default is given by CURRENT_TIMESTAMP. (ii) specifying DEFAULT CURRENT_TIMESTAMP defeats auto-resetting of the timestamp on updates. Is that what you want? To get auto-setting on INSERTs and UPDATEs, just write last_updated TIMESTAMP, Also the manual doesn't mention TIME WITHOUT TIME ZONE. Are you thinking of PostgreSQL? PB - Ferindo Middleton Jr wrote: I have been trying to create a table but mysql 5.0.15-nt-max is having a problem parsing the statement. Anyone know what the problem is in the syntax of the following table creation statement: CREATE TABLE registration_and_attendance ( idSERIAL NOT NULL UNIQUE, firstnameVARCHAR(256) NOT NULL, middlenameTEXT, lastnameVARCHAR(256), suffix TEXT, sf182_receivedBOOLEAN NOT NULL DEFAULT TRUE, registrant_email_address TEXT, cc_email_list TEXT, bureau_id INTEGER REFERENCES bureaus(id), office TEXT, class_id INTEGER NOT NULL REFERENCES classes(id), schedule_id INTEGER REFERENCES schedules(id), start_date DATE, end_date DATE, enrolled BOOLEAN, attendedBOOLEAN, completed BOOLEAN, cancelledBOOLEAN DEFAULT FALSE, cancelled_commentsTEXT, comments TEXT, email_confirmation_sent BOOLEAN NOT NULL, employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, last_user_updated TEXT, waitlisted BOOLEAN DEFAULT FALSE, overflow_registrantBOOLEAN DEFAULT FALSE, attach_hotel_listing_directions BOOLEAN, instructor_legacy TEXT, time_legacy TIME WITHOUT TIME ZONE, ssn_legacy TEXT, position_grade_title TEXT, office_phone_legacy TEXT, contractor_legacy BOOLEAN, no_show_legacy BOOLEAN, status_legacy TEXT, funding_id INTEGER REFERENCES funding_types(id), PRIMARY KEY (firstname, lastname, class_id, start_date, end_date) ); I get the following error message with the above statement but I can't figure out what the problem is: ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NOT N ULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, l' at line 23 Thanks, Ferindo -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: parse error creating table
Hi Ferindo The intended effect is to get a timestamp field that inserts the current system time on inserts and continues to update the field with the current timestamp on updates without the application or use needing to specify it are you saying that the timestamp attribute alone will do that? Yep. Try... create table ts(i int,ts timestamp); insert into ts values(1,null); select * from ts; +--+-+ | i| ts | +--+-+ |1 | 2005-12-04 17:21:01 | +--+-+ update ts set i=2; select * from ts; +--+-+ | i| ts | +--+-+ |2 | 2005-12-04 17:21:13 | +--+-+ PB http://www.artfulsoftware.com - Ferindo Middleton Jr wrote: Thanks Peter. I did originally use this table in a Postgresql db. Thanks for you advice. Your suggestions below allowed me to create this table and I learned a thing t two about proper usage of the TIMESTAMP data type. The intended effect is to get a timestamp field that inserts the current system time on inserts and continues to update the field with the current timestamp on updates without the application or use needing to specify it are you saying that the timestamp attribute alone will do that? Ferindo Peter Brawley wrote: Ferindo One problem is: employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, NOT NULL should be before REFERENCES. Also, in: last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, (i) NOT NULL is superfluous since the default is given by CURRENT_TIMESTAMP. (ii) specifying DEFAULT CURRENT_TIMESTAMP defeats auto-resetting of the timestamp on updates. Is that what you want? To get auto-setting on INSERTs and UPDATEs, just write last_updated TIMESTAMP, Also the manual doesn't mention TIME WITHOUT TIME ZONE. Are you thinking of PostgreSQL? PB - Ferindo Middleton Jr wrote: I have been trying to create a table but mysql 5.0.15-nt-max is having a problem parsing the statement. Anyone know what the problem is in the syntax of the following table creation statement: CREATE TABLE registration_and_attendance ( idSERIAL NOT NULL UNIQUE, firstnameVARCHAR(256) NOT NULL, middlenameTEXT, lastnameVARCHAR(256), suffix TEXT, sf182_receivedBOOLEAN NOT NULL DEFAULT TRUE, registrant_email_address TEXT, cc_email_list TEXT, bureau_id INTEGER REFERENCES bureaus(id), office TEXT, class_id INTEGER NOT NULL REFERENCES classes(id), schedule_id INTEGER REFERENCES schedules(id), start_date DATE, end_date DATE, enrolled BOOLEAN, attendedBOOLEAN, completed BOOLEAN, cancelledBOOLEAN DEFAULT FALSE, cancelled_commentsTEXT, comments TEXT, email_confirmation_sent BOOLEAN NOT NULL, employment_status_id INTEGER REFERENCES employment_statuses(id) NOT NULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, last_user_updated TEXT, waitlisted BOOLEAN DEFAULT FALSE, overflow_registrantBOOLEAN DEFAULT FALSE, attach_hotel_listing_directions BOOLEAN, instructor_legacy TEXT, time_legacy TIME WITHOUT TIME ZONE, ssn_legacy TEXT, position_grade_title TEXT, office_phone_legacy TEXT, contractor_legacy BOOLEAN, no_show_legacy BOOLEAN, status_legacy TEXT, funding_id INTEGER REFERENCES funding_types(id), PRIMARY KEY (firstname, lastname, class_id, start_date, end_date) ); I get the following error message with the above statement but I can't figure out what the problem is: ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'NOT N ULL, last_updated TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, l' at line 23 Thanks, Ferindo -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.13.11/191 - Release Date: 12/2/2005 -- MySQL General Mailing List For list archives:
sporadic batch update problem
Sporadically, the last few entries of a batch are not written. I'm writing
to a mysql database using JDBC. Here's a short version of my code. Does
anyone have suggestions on possible causes or other diagnostics?
class DatabaseWriter{
int writeCount=0;
public DatabaseWriter(){
PreparedStatement preparedStatement = connection.prepareStatement(insert
into msgpersecond ( time , count , sendercompid , targetcompid )
values ( ? , ? , ? , ? ));
connection.setAutoCommit( false ); // turn off auto-Commit
}
public void process(Object input){
preparedStatement.setFloat( 2 , event.msgPerSecond );
preparedStatement.addBatch( );
writeCount++:
if (writeCount 50) {
updateCounts = preparedStatement.executeBatch( );
connection.commit( );
preparedStatement.clearBatch( );
writeCount=0;
}
}
}
process() gets called a lot. The code usually works fine, but sometimes 3
to 20 or so records that definitely are added to the batch but don't get
written.
I'd greatly appreciate any suggestions.
Thanks
Re: ERROR 2003 (HY000): Can't connect to MySQL server on 'gandalf' (111)
On 5/12/2005 11:56 a.m., Mike Smith wrote: Hi, Hi, I've already check my /etc/my.cnf file for a binding line. Its not there. I also found an item online that indicated adding: Look for the option skip-networking. This disables TCP/IP so the server only accepts local connections via the Unix socket. This sounds like your situation. Note that a could not connect error means just that. If the problem was related to user privileges you would get an access denied error. HTH, -Simon -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Moving databases from backups not working . . .
Thanks for the replies so far, I still haven't got this figured out, but I left out one important piece of information. I'm moving 3.23 databases to a 4.1 installation. Looking at the documentation, I see instructions for upgrading from 3.23 to 4.0 and then upgrading from 4.0 to 4.1. Does that mean that I can't just move databases from a machine that was 3.23 to a machine that is 4.1? I have the entire old mysql/data folder copied to the new machine (in my user folder - not in the new mysql/data folder). The original machine is not really working at the moment - a kernel panic caused by I-don't-know-what. But I've replicated everything important from it to the new machine and want to do the same with the mysql databases, except I'm running into this how to move 3.23 databases into a 4.1 installation problem. Any suggestions, now that I have made the problem a little clearer? TIA -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
MySQL 5 is 25% slower then 4.1
Dear MySQL fans, I have a 260 GB huge file with 1045175762 rows. Two weeks ago, I wrote a Java program to read the huge plain text file into MySQL 4.1.12. 300 million of rows could be loaded in one day. Last Thursday, I updated the MySQL to 5.0.16 and then run the same program. Only 225 million of rows can be loaded in one day. In additional to the version difference, the MySQL 4.1.12 was compiled from SRPM packages from RedHat Updates, while the MySQL 5.0.16 is installed directly using the MySQL binary RPM packages for Redhat AS 4. Any information and suggestion are welcome. Regards, Chenzhou CUI -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
