MYSQL :: Enabling Remote Connections

Enable Remote Connections
When we connect to the database server on the same PC, we give the server as "localhost"
When I tried to connect to the database on another PC by giving the hostname as server it gives the error as

Access denied for user 'root'@'hostnmae'

Can someone tell me how do I make sure remote connections are open for this mysql database and how can I identify it from another PC?

MySQL Max Connections Remote And Local
My website runs on two servers. One is mean't for PHP and the other is the database MySQL. Whenever a request is made, the PHP attempts to connect to the MySQL via a remove host variable in the mysql_pconnect() function. This works fine, however when it comes down to having lots of connections in the my.cnf file, which one do I edit?

max_connections = 1000

Now do I set this in the MySQL only, or do I set it in the PHP server as well?

Remote MySQL Connections, Still Not Working
I've read, and done all the tutorials, forum posts, and comments I could find regarding setting up a mysql server access for remote connections, but I still seem to have problems. I have a LAMP server running behind a closed router connection. A dynamic DNS is masking the connection, and I have the appropriate ports open for HTTP, SSH, VNC, FTP, and I thought MySQL (3306). But for some reason I still cannot get MySQL to connect from a foreign host.

The I have port forwarding (3306) to the correct system behind the router, and I can access the server just fine via http/ftp. The MySQL server is happily running PHP MyAdmin with the localhost connection too. I've set a (actually a couple now) user to have the ip access of "%", and granted all permissions to that user, flushed the permissions, even restarted the server. I still can't get the remote connection to work.

Remote ODBC Connections To MYSQL
I have a requirement to do some standard table work with existing online survey software (PHP based- using MYSQL). I would like to test the ability to do this work from desktop clients such as access or open office.
I have set up an ODBC connection on my machine with appropriate passwords etc. When I run the test in the WinXP ODBC diaglog, it is says that connection is succesfull.

However, when I try to use the same DSN in ACCESS or the database component of Open Office, it is that it is unable to make the connection. For example in ACCESS, trying to link tables, the message comes that the ODBC call fails.]

In OPEN OFFICE when I do the test connection, I get "ACCESS DENIED" for user... which is the user account and password that I use in the web based projects.

Enabling SSL Using MySQL Rpm
How do I enable MySQL to accept ssl connections using the rpm version of MySQL
4.1.10. I am using RHEL 3.0. Can some one point in the right direction?

Enabling Replication
If I add

log-bin
server-id=1

to my.ini and restart the server it starts creating the .bin logs - woo hoo !

Unfortunately I then cannot log into,or use mysql - I have tried at the cmd line with localhost in the connect string and also the actual IP address ..... no joy

If I comment out the log-bin lines then all is ok again (phew!) - nothing is present in the error log either .... Any ideas what I am missing ?

Web-enabling The Database
After information has been added to the mysql database, how do you go about web-enabling the information to be searched by your visitors?

Enabling INNODB
in mysql 4.1 that came with xampp package, i saw that innodb table type is disabled..how may i enable it?

Enabling InnoDB
Actually am using mysql 5.0 version, default it using MyISAM engine, but i wnat ot use InnoDB engine. I tried to change the my.cnf file with entry "default_server_engnie=InnoDB".but there is no use.

Enabling SSL & Setting Up A Certificate
I have MySQL 5.0.27 on XP Pro. I have not been able to find the correct syntax for starting MySQL so that SSL is enabled.I've searched the forums and the Manual.

ALso, can anyone point me to a location which provides clear guidance on setting up an SSL certificate? %.9.7.4 of the Reference Manual wasn't too helpful for me.

Enabling -- Log - Slow - Queries
I want to enable --log-slow-queries of MySQL.

How do I do it without restarting the DB server?

Enabling Multiple Statements
I'm trying to execute the following multiple statements using MySql w/ the ODBC connector.

INSERT INTO Sites(Hostname) values('zzz');
INSERT INTO Hosts(SiteID, Hostname) values(last_insert_id(), 'zzz');

I get the following error:

[1064] [1] [0] "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 ';
INSERT INTO SiteHosts(SiteID, Hostname)
VALUES(@@IDENTITY, 'zzz')' at line 2"

Is there something I have to do to enable multiple statements?

Enabling Federated Tables.
I am using mysql 5.0.27-community-nt on windows xp. Federated engine is inactive. How can I activate the federated engine?

MySQL Remote Backups - No Access To FTP Or Remote Command Line
I have a mySQL database located on a remote host's server. I would
like to schedule a task on my local Windows computer to retrieve a
backup/dump of this remote database.

I have contacted my host, and they indicated that the server is only
open to the Internet via mySQL. Therefore, even if I did have access
to that server's command line (which I don't) to create dumps via
mysqldump, I would not be able to retrieve via FTP.

Does anybody have any ideas as to how I can generate backup files from
my local computer through a local command-line interface? I have done
it through a GUI (DBTools), but I would like to have it done via DOS
batch, so that I can schedule it. Does anyone know of any mysql backup
GUIs with command line switches? Or can somebody recommend an
alternate means of getting a local backup?

Too Many Connections
Sometimes during busy parts of the day, my site shows a 'Too Many Connections' error.
I know it's something to do with the maximum default being 100, and that I need to change it in the my.cnf file. However I can't find the file.
Can someone tell me, step by step, how to create the file?

Too-many Connections
i am using MYSQL database in my system.i have public IP like (202.***.**.**)ie accessed
10 people in my organization.after some time it is showing too-many connections.

actually that is used only 10 persons but in my.ini file max_connections=255 are
255 but it is showing always too-many connections error.at that time we are restarting the system the problem is tempararyly solved?
what is the permenat solutions for that?

by using showprocesslist; command showing the list it is showing 10 users why it is showing the too-many connections?

How Many New Connections
How many connections Mysql cal handle

max_connections= ?

To Many Connections?
My host reported an error and said that my script was allowing to many connections.
Is there something that should be coded to close a connection after a user leaves the site? I thought this was automatic, but I guess not?? I can't imagine there were more than 50 users at one time on this certain site.

MAX CONNECTIONS
My site hasavailable by default 15 connetions to MYSQL.
Many connections remain open for much time, so when a
new user enter the page it shows a message UNABLE TO CONNECT TO DB.

How do I avoid this, without need change the number of connections
of the server?

Too Many Connections
i have an visual basic data entry application that use mysql database.
the app is installed on 6 computers.after each computer enters 4,5 data sheets,it gives the error TOO MANY CONNECTIONS

for connecting to mysql i created a mysql user MIHAI with all the privileges and

max_Questions
max_updates
max connections

set to 0 , wich means no limit for connections right??

but still, the error message, TOO MANY CONNECTIONS.

i read on mysql site

"The number of connections allowed is controlled by the max_connections system variable. Its default value is 100. If you need to support more connections, you should set a larger value for this variable."

but if i modify the max_connection textbox in mysql administrator isnt it the same thing?

Max Connections
I have stupidly set the max questions/conections options to such a low number that its locked me out before i even got a chance to play with this new version. Is there any way i can reset all the options and just start again. I have tried uninstalling and deleting the service from windows but on reinstall it just gives the same errors.

20 Connections
Is it normal for mysql's performance to plummet when it hits about 20 connections? These connections are all from scripts running as cron jobs.

I have max_connections set to 500 and max_user_connections set to 35.

Too Many Connections
I have been using a certain php file to connect to a mysql database for some time, but the last time that I checked it for bugs, I got an error message "Warning: mysql_connect(): Too many connections in /home/yonni/public_html/cgi-bin/register.php on line 19. ERROR 3: The connection to the registration database is temporarily unavaliable: Too many connections" I have not changed the coding for the connection to the database since I first wrote it. The code for this part of the script is:

$dbh=mysql_connect("localhost", "*my username*", "*my password*") or die ('ERROR 3: The connection to the registration database is temporarily unavaliable: '.mysql_error());
mysql_select_db("yonni_") or die ('ERROR 4: unable to select the correct database');

Why has this error occured, and is there a way of avoiding it? There is noone else viewing the site yet, and I do not know what the problem is. Please help

2 Connections
I create 2 connectionsand then try to select the current active database:

$aaa_link = mysql_connect("host1","user1","pass1") or die(mysql_error());
$bbb_link = mysql_connect("host2","user2","pass2")or die(mysql_error());

mysql_select_db("dbname1", $aaa_link) or die(mysql_error());

However, mysql_select_db fails with error:

Access denied for user: "user2" to database "dbname1"

Too Many Connections
I am running a couple sites off a mysql server and I am currently having a too many mysql_connect error:

CODEWarning: mysql_connect(): #08004Too many connections

Allow Outside Connections
i need to be able to connect from one server to another... i need to know how to allow outside connections.
so i can use blah.com as the host instead of localhost
or is this turned on by defult in MySQL??

Too Many Connections (my.cnf Set To 3550)
I'm getting the following error in one of my scripts:

Warning: mysql_pconnect(): Too many connections in /home/filexoom/public_html/includes/mysql.class.php on line 5
mySQL: Too many connections on line 5 in /home/filexoom/public_html/includes/mysql.class.php

To fix the problem I've raised the max_connections to 3550 (had to raise it gradually), but it is still getting the error on occasion. I don't understand what's going on, I only have about 4000 users in the db. I have restarted httpd, mysql, and even the entire server after editting my.cnf. However I'm still getting the same issue.

I'm thinking perhaps the script is not closing the db connections, so there are a bunch that are still open, but should be closed. If so, is there anyway I can kill/flush all the current connections?

Question About Max Connections
I had a question about maximum connections to a database. How does that work? I've read different things about it. If I have a limit of 100 connections and 100 people are currently connected to the database, then 1 more can't...

or

Is it only during connecting that this issue comes around.

Active Connections
i need to know how many connections and where they are coming from becuase my database is taking over the whole cpu after around 20 minutes the deamon has been started. it's very xtrange and i don't know how to work this out

i taught it was a windows problem but it's the same over linux

# Of Mysql Connections
I was wondering what you guys thought about this. How many mysql connections do you think is to many on a php page?

Getting Active Connections
i wanna get active user connections, means which users are connected to server.
i have seen it in mysql administrator software in server connections tab.

How Many Connections At One Time?
I am thinking about using a php persistent connection to my mysql database. there will be several thousand users, several hundred at one time. How many connections can i open to mysql simultaneously?

Multiple Connections
While running under XP my app did perform many successfully db operations. But after a few thousand or so updates and reads in a tight loop, it would eventually crash. A sample trace is included in a prior posting. Code:

What Are Connections And How To Manage Them
I have been using mySQL for several years now, but I currently developing a larger/broader usage website with intense mySQL contents usage.

I have been told that mySQL has a so-called connection limit of 50-70.

QUESTIONS:

1) What is a connection limit? Or... How do you count 1 connection?

2) How do you properly manage this, to e.g. handle a site that has 1000 simultaneous users logged in to a web site and interacting with the database.

Connections And Timers.
Is it possible to establish connection with other DB ie ORACLE and execute select and insert the result to the MySQL DB. If yes how to do it ? Are there avilable tasks which can be fired on the timer basis ?

Persistent Connections
I have a website that's getting it's ass kicked so I tried changing the DB connections to use mysql_pconnect instead of mysql_connect. After doing that, I started getting mysql errors left and right, all of which were claiming that a table didn't exist inside a certain database... basically it looked like it was mixing up connections. Any idea how I can avoid this?

No. Of Connections Open
I am using mysql 4.0.12 with asp.net 1.1...

I want to find no. of connections open for a given database using any query...

Do anyone has any idea?

Network Connections
I can connect to the database on my FreeBSD system, but not from another
system on my network. How do I set it up to allow remote connections?

How Many Connections Are Open?
We have a large database that has suddenly become extremely slow. It is running on Fedora core 4. How can I find ou thow many connection are open?

When I look at CPU usage thru CPanel this appears to use a lot of CPU, sometimes over 90%

/usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/mail.realivent.com.pid --skip-external-locking

Mysql Connections
I am currently running MySQL 5.0 on RHE3.

I would like to know if someone can tell me how can I get the total number of connections/session to the mysql server via the console or command line?

Slow Connections
I am using MyODBC-3.51.11-2-win on Win 2003 OS. I am not able to see all of the connections in the list under the System DSN tab. The connections that show allow the ASP pages to run at an expected rate.

However, the ones not showing in the list are running extremely slow. If I attpemt to recreate the connection I am told that the connection already exists and asks if I want to replace the existing connection. Wheter I click yes or no the connections do not show and the pages run slowly. How do I get them to show or resolve the issue. The ASP code is the exact same SQL statements and connection strings as the in previous applications.

Too Many Connections Error
I have been getting the following error consistently every few days:

Warning: Too many connections in /path/to/connection.php

I altered the max_connections in my.cnf to allow for 300 connections. I
am not using persistent connections with php. I used to use them but
got this too many connections error all the time, so I switched to
non-persistent connections, but they don't seem to be getting killed
off? I am using php to connect.

has anyone else dealt with this issue? Should I perhaps be closing the
mysql_connect() after running each query?

Selecting Across Connections
This is either a very simple answer or a very dumb question, i'm also sure there is alot of documentation on how/why not to do this possibly too much hence my issue with figuring it out.

I have a db on-site at locationA.
I have a db hosted online at locationB.

I want to schedule a query to run regularly (twice daily) that Selects into a table on db at locationB data from tables at locationA, the query needs to be executed at locationA.
I.e.

SELECT locationA.myonsitedb.tblMyTable.*
INTO locationB.myonlinedb.tblMyRemoteTable.*

Unfortunately, in my noobness I have no idea where to start here, I have no problem with the queries but I'm completely green to the setup of connections and how to query across these connections or how to setup the scheduling.

Aborted Connections
I get pages error logs with this message -
"Got an error reading communication packets". And the aborted clients are easily in hundreds.

Here is my set of configurations:
I am running Microsoft .Net 2.0 on Windows 2003 Server using IIS 6.0. I am using Mysql 5.0 with Mysql/.Net Connector 1.0.

Some of the settings on my.ini -
Connection timeout - 180
Wait timeout - 360
Max packet size - 10 M
Max connections - 5000 (pretty high, but set to be on a safer side)

When a perform a netstat -ao - I have lot many sockets open with TIME_WAIT status. On the MySql Command client - the Aborted clients average around 100's

The connection string from ,Net application has pooling=false with no help.

The webserver does not have a heavy load and has less than 5 users at any point in time.

On the registry settings, I have the max ports > 60000 and the time_wait setting changed to 30.

My application is opens a connection, performs a query and closes the connection and this is the fashion followed for all DB operations.

Too Many Faulty Connections [ Was Please Help ]
My website keeps telling me 'Cannot connect to dababase, too many fauly connections'

I saw that we can do this:

shell> mysqld_safe -O max_connect_errors=10000 &

But I don't run Linux, and thus can't do a shell command.

Does anyone know how to do this in windows server 2003?

Solutions For More Connections To Db
I'd liek to ask what are the soultions when there are a lot of
connections to the db ??
For examlpe in how are builidng the db for mmo web browser based games.

'Too Many Connections' Error;
I manage a Linux box that runs a small website and today, my clients got the 'Could not connect: Too many connections' error when they tried to connect to their CMS. Here is what I did:

1. Ran "show full processlist" from a mysql prompt and got the following info:

+-----+------+-----------+------+---------+------+-------+-----------------------+
| Id | User | Host | db | Command | Time | State | Info |
+-----+------+-----------+------+---------+------+-------+-----------------------+
| 405 | root | localhost | NULL | Query | 0 | NULL | show full processlist |
+-----+------+-----------+------+---------+------+-------+-----------------------+
1 row in set (0.00 sec)

In other words, there was only one person logged on, and that was me. I ran this a bunch of times during the day and this was all I ever saw.

Multiple Connections
I am observing some problems:

1) It seems to be a consistency problem. Updates that are performed by
the process that updates the databases are not always seen by the
clients.

2) Sometimes, it seems that some tables get corrupted, as clients get
errors relative to the table handler.