| Bug #65433 | Can't connect to MySQL server on '<hostname>' (111) error is getting shown | ||
|---|---|---|---|
| Submitted: | 27 May 2012 11:47 | Modified: | 23 Aug 2012 15:03 |
| Reporter: | Kunal Verma | Email Updates: | |
| Status: | Not a Bug | Impact on me: | |
| Category: | MySQL Server: C API (client library) | Severity: | S2 (Serious) |
| Version: | 5.1.47 | OS: | Any (Linux 64bit) |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | 111, error no=2003 | ||
[27 May 2012 12:15]
Valeriy Kravchuk
We're sorry, but the bug system is not the appropriate forum for asking help on using MySQL products. Your problem is not the result of a bug. Support on using our products is available both free in our forums at http://forums.mysql.com/ and for a reasonable fee direct from our skilled support engineers at http://www.mysql.com/support/ Thank you for your interest in MySQL.
[27 May 2012 17:39]
Kunal Verma
Thanks, I will let you know what was the actual issue when I look more into it.
[7 Aug 2012 15:24]
lee lei
I got the same promblem... Have you fixed it?
[23 Aug 2012 15:03]
Kunal Verma
It was related with storing number in string variable. While debugging I found that variable for port number was different number than 3306 due to it. It is fixed now

Description: Case 1: When I connect to remote mysql server i.e. mysql server is not on localhost using installed mysql command-line, connectionn is getting established. Used command -line: mysql -u<user name> -p<password> -h<host name> -P 3306 <database name> Hostname is not localhost, it is valid hostname e.g. mymachine.pc.sth.com Case 2: I have an application which uses mysql_real_connect statement with following arguments after calliing mysql_init my_conn=mysql_real_connect(my_data_conn,mhost,muser,passwd,mdb,mport,NULL,0); On running above program connection is getting successful. In this case also mysql server is installed on remote server i.e. mysql server is not on localhost and I am providing valid hostname. From above two successful connections using mysql_real_connect, it is evident that there is no issue with tcp/ip connection using 3306 port with the remote mysql server. Case 3: I have third custom mysql client program. I am running this custom command-line as below: lax93t01> ./mysql_client -u <username> -pw <password> -h <valid hostname> -p 3306 -d <database name> My program is printing below error: error no=2003, error message=Can't connect to MySQL server on 'valid hostname' (111) Below is variable declaration and mysql_real_connect that I am using in custom mysql command-line program i.e. mysql_client int client_flag = 0; char* socket = NULL; temp = mysql_real_connect(mysql_handle_conn,user_input_conn_parms->hostname, user_input_conn_parms->userid, user_input_conn_parms->password, user_input_conn_parms->databasename, (int) *(user_input_conn_parms->port), socket, client_flag); Is there any option to be set on client side but if it is the case why case 1 and case 2 are getting successful is it not that error is coming from mysql server? why mysql server allows connection using mysql commnad-line and one appliocation but third application is showing this error? How to repeat: Run Custom mysql command-line executable of case 3 (from description)