How to reproduce the MySQL error "Got an error reading communication packets in MySQL" in MySQL error log. and what will happen to that connection. So that the MySQL will produce 2013 error..
Thanks in advance.
Change the bind-address="Some IP" restart MySQL server and try to start from localhost, you will get this error.
This error also occurs if port forwarding is disabled in SSH configuration (the configuration parameter 'AllowTcpForwarding' is set to 'no' in the 'sshd_config' file)
Related
I got following errors when I start the server. I did not changed any password or username before stop the xampp and shutdown the computer.
Cannot connect: invalid settings.
Packets out of order. Expected 0 received 1. Packet size=68
mysqli::real_connect(): Error while reading greeting packet. PID=5140
mysqli::real_connect(): (HY000/2006): MySQL server has gone away
Connection for controluser as defined in your configuration failed.
Packets out of order. Expected 0 received 1. Packet size=68
mysqli::real_connect(): Error while reading greeting packet. PID=5140
mysqli::real_connect(): (HY000/2006): MySQL server has gone away
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.
Update:
when I changed the $cfg['Servers'][$i]['AllowNoPassword'] = true; to false; now only shows following error
phpMyAdmin tried to connect to the MySQL server,
and the server rejected the connection.
You should check the host, username and password in your configuration and make sure that
they correspond to the information given by the administrator of the MySQL server.
Recently I installed xampp software and where i start apache and mysql server but when i go to localhost/phpmyadmin then i've got some errors and i can't be able to fix those errors.
Error
MySQL said: Documentation
Cannot connect: invalid settings.
mysqli::real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
Connection for controluser as defined in your configuration failed.
mysqli::real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.
MySQL suddenly not starting from last 2 days in XAMPP localhost
I tried by changing the PORT number and delete the ibdata1 file. but none of these are worked for me. Below is the error showing in PHPmyadmin
MySQL said:
Documentation
Cannot connect: invalid settings.
mysqli_real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
Connection for controluser as defined in your configuration failed.
mysqli_real_connect(): (HY000/2002): No connection could be made because the target machine actively refused it.
phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server.
Error showing in XAMPP:
Status change detected: running
Please help me to resolve this. Thanks in advance for suggestions.
I use Ubuntu 12.04 x64, currently with Mysql 5.5.28 (plus Galera, but I don't think it's related).
I made some changes in my.cnf, but changes was related to InnoDB settings (a lot more memory for the buffer pool, flush, thread concurrency settings etc.).
After that when I hit service mysql restart I cannot enter mysql console - I get following error message:
Lost connection to MySQL server at 'reading initial communication packet',
system error: 104
Sometimes next try results in entering console, sometimes not and I have to restart my SSH connection. What could be the problem and how to fix it?
EDIT:
I noticed that most of the time after the system error: 104 following error occurs:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket
'/var/run/mysqld/mysqld.sock' (111)
After few times it usually starts. Unfortunately now it didn't and in syslog there is:
Error in my_thread_global_end(): 2 threads didn't exit
Restarting SSH connection / MySQL server is not working. I can try reboot server but I'd try to resolve this without that step. Its testing environment so I want to find better solution than restart whole server ;)
Please try the answers in this page:- Lost connection to MySQL server at 'reading initial communication packet', system error: 0
Also try this.
I have this server running LightHTTPD. I am trying access MySQL/PHPMyAdmin on this server. So far i have googled too much and tried so many things. I did this recently, edited this file /etc/mysql/my.conf, add bind-address = ip of my server;, then i did this:
mysql -u root -p
mysql> GRANT ALL ON databasename.* TO root#'0.0.0.0' IDENTIFIED BY 'pasword';
Now when i tried to connect to that server from IP i have granted, it gives me this error:
ini_set('display_errors',1);
error_reporting(E_ALL);
define("DB_NAME","pun_update");
define("DB_USER","root");
define("DB_PASS","");
define ("DB_SERVER","ip of my server");
function connect()
{
$db_handle = mysql_connect(DB_SERVER,DB_USER,DB_PASS)
or die("Unable to Connect to Database check your settings");
mysql_select_db(DB_NAME,$db_handle) or die ("Database doesnot exist");
}
connect();
I get this errror:
Warning: mysql_connect() [function.mysql-connect]: Lost connection to MySQL server at 'reading initial communication packet', system error: 110
Instead of using the IP try using the actual url of the remote server. Check this previous question.
update:
According to this page, error 110 is a connection timeout.
The MySQL site (MySQL server has gone away) cites instances which may cause this problem (you should check them out). Here is a notable one (for your case):
Another networking issue that can cause this error occurs if the MySQL port (default 3306) is blocked by your firewall, thus preventing any connections at all to the MySQL server.
There is another question (Lost connection...) which might be related to your problem if this is the cause.
Otherwise check that you are really connecting with the correct parameters. If possible try on the server itself.
Hope this helps!