I have a weird issue where I'm trying to connect phpMyAdmin to a remote server. It wasn't working at all so I was messing around with mysql in command line on the db server (no phpMyAdmin on the db). I used skip-grant tables so I could reset the root user and add myself as a user with all privileges:
GRANT ALL PRIVILEGES ON *.* TO 'myusr'#'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
I accidentally tried logging into PHPmyadmin at this time and it worked! Full access - can see everything in the remote DB. I know it's connected properly because changes I made in command line were showing in phpMyAdmin on the web server.
Now I stop mysqld_safe and restart the service on the db and everything dies again. I keep getting the unhelpful "Cannot log in to the MySQL server" message on phpMyAdmin without any other information. I tried tracing the connection in phpMyAdmin and setting values to test the db connection and results, but that's not working as well as I hoped.
I'll keep hacking, but I'm hoping someone has an idea what to do in this case? All the values appear to be configured correctly since it DOES connect to the db if I turn off all security. I can log into my user commandline using the same name and pass on the db server.
What else could I be missing?
EDIT: I stopped being dumb and trying to hack phpMyAdmin and made my own test php script that simply runs a mysqli_connect() attempt and returns the detailed error. I'm getting the following:
SQLSTATE[28000] [1045] Access denied for user 'myusr'#'prodserverFQDN' (using password: YES)
Ok. I kept researching while waiting for a response and I found something that works. Apparently I didn't enclose my password in quotes or something when I created the user commandline.
To fix it, I used mysqld_safe --skip-grant-tables on the db server so I could log in with phpMyAdmin. Using phpMyAdmin, I edited the user to change the password (via edit, not SQL to prevent shennanigans). Now I can log in like normal without using the "no security" option on my db server.
I am trying to run my PHP script via Terminal in Mac. When I try to run the script, I am getting this error:
Warning: mysqli_connect(): (HY000/2002): No such file or directory
This is how I am trying to connect:
mysqli_connect('localhost','root','root','my_db');
I also tried to connect using the host: 127.0.0.1 instead of localhost and I then got this error:
Warning: mysqli_connect(): (HY000/2002): Connection refused
From what I've read online it might have something to do with mysql socket, but whatever I try to do to get this to work doesn't help.
I even tried to connect using the following as my host:
:/Applications/MAMP/tmp/mysql/mysql.sock
:/var/mysql/mysql.sock
Any idea what can be the problem/solution?
Had the same issue. Here's what I did.
Open Terminal (/Applications/Utilities/terminal.app)
Use your favorite text editor to create/edit ~/.bash_profile. For instance, if you're using vim, type vim ~/.bash_profile. I use TextMate, so I typed mate ~/.bash_profile.
Add these lines:
export MAMP_SQL=/Applications/MAMP/Library/bin
export MAMP_PHP=/Applications/MAMP/bin/php/php5.5.10/bin
export PATH="$MAMP_SQL:$MAMP_PHP:$PATH"
These lines ensure that the first versions of MySQL and PHP that are found (and therefore used) are the versions used by MAMP. NB: Make sure that php5.5.10 matches the version MAMP is using. You can check this against http://localhost:8888/MAMP/index.php?page=phpinfo&language=English by default. SAVE THE FILE (I shouldn't have to save this, but invariably someone complains that it doesn't work).
Close your terminal window and reopen. This restarts the shell, which will load your .bash_profile script.
Type which php. You should get something akin to /Applications/MAMP/bin/php/php5.5.10/bin/php
Type which mysql. You should get something akin to /Applications/MAMP/Library/bin/mysql
If for any reason you get something different than the responses from 5 and 6, go back and check your .bash_profile; chances are you just neglected to save it properly.
If you have MySQL installed on your computer, you can do the following command:
mysql -u "username"
replacing "username" with the username of your computer
NOTE: often times root does not work, try the username of your computer
I am trying to install BugZilla on Mac OS X 10.9 (Mavericks).
I'm hitting a snag with my MySQL configuration.
I have installed MySQL from the DMG Image mysql-5.6.14-osx10.7-x86_64
MySQL seems to be installed and running ok.
I have created a user called bugs, and a database called bugs.
I confirm that I can login to MySql from the terminal command line, using the bugs username and password, and access the bugs database.
However the installation of BugZilla fails with an error connecting to MySQL. I tried a simple test and wrote this php file:
<?php
// Create connection
$con=mysqli_connect(“localhost”,”bugs”,”********”,”bugs”);
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
But it fails at line 3 with:
Warning: mysqli_connect(): (HY000/2002): No route to host in /Users/bugzilla/Sites/test_my.php on line 11
Failed to connect to MySQL: No route to host
Why is it that I can connect from the command line, but not from php?
We experienced this error because the ip subnet used by our vagrant environment was the same as the subnet of the database server. We needed to recreate the database server on a different subnet.
I just experienced a similar problem but through which it looks like there was a different problem case. I was getting the same error:
Failed to connect to the database, please check your credentials: No route to host
And we were able to figure out the problem was actually that the disk space of our database was full (our server administrator was out sick for a while, and we automatically make snapshots, but only manually delete them on a regular basis. After a few days, the snapshots took up the space of the entire server and rendered it unresponsive).
I don't know if this will be the answer to anyone with this issue, but if someone does stumble upon this same error, hopefully this might help.
I'm adding PHP (php-fpm) to an existing Nginx Ubuntu 10.04 server and can't get pdo_mysql to work. I'm trying to connect to a MySQL server someplace else, but all the Googling answers I found are in regards to MySQL not working on the local server, so I'm not sure how to proceed.
I don't have mysqld installed, so I'm not sure if I need it, or if there's a way around this? Also I'm wondering if it can't create mysqld.sock because there is mysql user on the server?
Error:
SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Fatal error: Call to a member function query() on a non-object
My PHP connection code:
$this->PDO = new PDO('mysql:host=' . $this->config->getValue('db_host') .
';dbname=' . $this->config->getValue('db_name'),
$this->config->getValue('db_user'),
$this->config->getValue('db_pass'));
My Query line it fails on:
$PDOStatement = $this->PDO->query($query);
Appreciate any help, thanks.
Couple of things you should check
D you have mysql-client installed? if you are connecting to remote machine. you don't need mysql running on your box but I think you will still need the client.
Make sure the host value is correct. Double & triple check
Lastly, Try connecting manually using command line, by the following command.
$ mysql -u <INSERT_USER_HERE> -p -h <INSERT_IP_OF_REMOTE_MACHINE_HERE> <INSERT_DB_NAME_HERE>
If it does not work. come back with exact error message.
Your server is attempting to connect to a local MySQL instance. If your database is on a different remote server, make sure that the the db_host value of your configuration file points to the correct hostname of the MySQL server.
You do not need mysqld installed, but you do need MySQL client libraries.
Are you sure that $this->config->getValue('db_host') is returning the correct value? The behavior you're describing sounds a lot like it's returning an empty or null value.
So the problem changed from what it was, i'll leave the original question below to prevent bad reviews on answers like I had after someone editing his question I answered :
So I am working on a (really lame) shared hosting which has PDO installed, but it doesn't work.
With default parameters
<?php
try {
$dbh = new PDO('mysql:host=localhost;dbname=THE_DB_NAME', 'THE_USER', 'THE_PASSWORD');
echo 'Connected to database';
}
catch(PDOException $e)
{
echo $e->getMessage();
}
?>
it throws this message :
SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
With a simple mysql_connect, it works.
And the socket path seems correct (both phpinfo and this query :
show variables like 'socket';
confirm.
Localhost redirects to 10.103.0.14 (this data comes from mysql_get_host_info() and in phpMyAdmin)
In the PDO, if i replace localhost by 127.0.0.1 i will get
SQLSTATE[HY000] [2003] Can't connect to MySQL server on '127.0.0.1' (111)
And if i replace localhost by 10.103.0.14 :
Access denied for user 'USER_NAME'#'10.103.0.14' (using password: YES
Both IP adress (127.0.0.1 and 10.103.0.14) work with mysql_connect.
So apparently the problem comes from the PDO connection.
Does somebody knows where this could come from, or/and any way to fix it ?
Some server datas :
The PHP Version : 5.2.10
You can see the server's phpinfo : http://web.lerelaisinternet.com/abcd.php?v=5
No command line possible.
(i know it should be the tech suport's job, but they're reaaaaaly slow)
Thanks
Previous question :
How to find the mysql.sock on a shared host (tricky way needed...)
So today's problem is : The PDO connection doesn't work on a shared host, and it's supposed to (it's installed on the server).
Just a basic PDO connection :
<?php
try {
$dbh = new PDO('mysql:host=localhost;dbname=THE_DB_NAME', 'THE_USER', 'THE_PASSWORD');
echo 'Connected to database';
}
catch(PDOException $e)
{
echo $e->getMessage();
}
?>
throws this message :
SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
A regular mysql connection :
mysql_connect("localhost", "THE_USER", "THE_PWD") or die(mysql_error());
mysql_select_db("24DLJLRR1") or die(mysql_error());;
echo 'Connected to database <br/>';
works fine.
So apparently it cannot find the .sock.
I think specifying the correct address should work, i tried some "classic" mysql path that I found on internet, without success.
The phpinfo says it is at this adress (/var/lib/mysql/mysql.sock)
(The PHP Version is 5.2.10)
You can see the server's phpinfo : http://web.lerelaisinternet.com/abcd.php?v=5
So i am trying to figure out where the hell it is !!!
I tried to look in the phpMyAdmin interface, but i couldn't find the info, plus it seems that phpMyAdmin connects to a different server (it has a different IP adress, and trying to connect to it with php gives a "Wrong password" error). The mysql_connect also connects to this adress, i think it redirects to a different server with some internal password/login.
Well if you have any idea of how to obtain this info (the provider's technical support is "fixing the problem"... it's been 1 month...).
Also maybe the problem comes from somewhere else, but the same stuff works on other shared hosts...
The need of PDO is because I use the Symfony framework with Doctrine for this website, and the Doctrine plugin needs PDO... I don't want to redo the website from scratch !
Thanks for your help !
This was already marked as answered, but not really solved (without changing databases).
So, just in case someone like me also experiences this problem...
The easiest way to fix this is to first get the socket path (either by looking in the php.ini file or by using: phpmyadmin or the console (or construct it in mysql or mysqli)
...to run the following query (anything but PDO):
show variables like 'socket'; //as mentioned by symcbean
THEN, in the PDO connection string, change it to use the socket instead of a hostname:
$dbc = new
PDO("mysql:unix_socket=/var/run/mysqld/mysqld.sock;dbname=$DBName",
$User, $Password, array(PDO::ATTR_PERSISTENT => true)); // using
persistent connections
This worked for me.
FWIW, I had this issue and changed my host from 'localhost' to '127.0.0.1'.
I have no clue why localhost wasn't working, but that did the trick.
Odd thing is, we have tons of servers and it works on almost every one using 'localhost'
Is your server running with SeLinux enabled (enforcing)? If it is, try running as root:
# setsebool -P httpd_can_network_connect on
Can you try 127.0.0.1 as the server name instead of localhost?
IIRC, with some mySQL drivers / adapters, this decides whether the socket is used for establishing the connection or not.
Using the connection which works, run the query:
show variables like 'socket';
(this behaves just like a select statement)...and you'll get the path of the running socket.
Then check the file permissions.
I had the problem that production version worked just fine and a test version wasn't able to connect PDO :/
both versions was located at same servers, test in a sub directory.
The fix was replacing in DSN the localhost for ip.
'mysql:host=localhost;dbname=db'
became
'mysql:host=127.0.0.1;dbname=db'
try:
exec('`which mysql_config` --socket');
this should show you the configured socket.
I found the reason for the strange behaviour. If bind-address is different to 127.0.0.1 or 0.0.0.0 (all addresses) PDO can't connect to 127.0.0.1.
For what it's worth, I found this page after having the exact same issue. I am on a server running Apache & PHP only - MySQL is installed on another machine. I tried both the DNS name of the server and its IP and confirmed I could ping it. A PHP app on the same machine is talking to the database fine, using old syntax mysql_connect( ). But PDO from the CLI was throwing this error.
The solution for me was to check my DSN. Any typo in the DSN itself is ignored silently, and PDO assumes you mean localhost. My issue was I had "name=" instead of "dbname=" in the DSN.
The Issue In the Mysql configuration It you need to disable the option of skip-networking
in my.conf configuration file this should work fine
reference
http://www.wolfcms.org/forum/post7098.html#p7098
I just solved a similar issue. My guess is you probably replaced your mysql_connect() statement with the PDO equivalent. Don't forget you still have lots of other code dependent on that old connection statement. Try keeping the mysql_connect in place while writing in the PDO code.
What worked for me was specifying the port number like so:
mysql:hostname;port=3306;dbname=dbname;
This got it to work when connecting to a local database. Now I'm working on getting it to work with a remote db.
My problem may be different to the OP, but I thought it was worth posting. I did a software upgrade on a VM, then rebooted and got the OP's error message. It turned out to be an out-of-memory problem preventing mysql from starting. Deleting a few large files made the problem go away.
One year later, I found a solution for this issue : using a SQLite database. PDO worked fine, but not with MySQL
** EDIT ** as everyone is downvoting this: This solved my issue (I'm the OP). I was using Doctrine, so switching RDBMS was easy and quick. Also the website was some a home made CMS, with very few trafic, so SQLite was fine.
I know it's not a real "Answer" to the problem, but if someone is in the same context: a crappy shared hosting which you can't change with this weird PDO-MySQL bug AND is using doctrine. This IS a solution. I can delete this answer, but if I had thought of this at the time of the OP, I would have saved a lot of time.