MySqlConnectionConnectionTimeout Property Show Gets the time to wait while trying to establish a connection before terminating the attempt and generating an error. Namespace: MySql.Data.MySqlClient Syntax Exceptions Remarks A value of 0 indicates no limit, and should be avoided in a ConnectionString because an attempt to connect will wait indefinitely. Examples The following example creates a MySqlConnection and sets some of its properties in the connection string. public void CreateSqlConnection() { MySqlConnection myConnection = new MySqlConnection(); myConnection.ConnectionString = "Persist Security Info=False;Username=user;Password=pass;database=test1;server=localhost;Connect Timeout=30"; myConnection.Open(); } See Also ReferenceMySqlConnectionConnectionString Property Gets or sets the string used to connect to a MySQL Server database. Namespace: MySql.Data.MySqlClient Syntax Remarks The ConnectionString returned may not be exactly like what was originally set but will be indentical in terms of keyword/value pairs. Security information will not be included unless the Persist Security Info value is set to true. You can use the ConnectionString property to connect to a database. The following example illustrates a typical connection string. "Persist Security Info=False;database=MyDB;server=MySqlServer;user id=myUser;Password=myPass" The ConnectionString property can be set only when the connection is closed. Many of the connection string values have corresponding read-only properties. When the connection string is set, all of these properties are updated, except when an error is detected. In this case, none of the properties are updated. MySqlConnection properties return only those settings contained in the ConnectionString. To connect to a local machine, specify "localhost" for the server. If you do not specify a server, localhost is assumed. Resetting the ConnectionString on a closed connection resets all connection string values (and related properties) including the password. For example, if you set a connection string that includes "Database= MyDb", and then reset the connection string to "Data Source=myserver;User Id=myUser;Password=myPass", the Database property is no longer set to MyDb. The connection string is parsed immediately after being set. If errors in syntax are found when parsing, a runtime exception, such as ArgumentException, is generated. Other errors can be found only when an attempt is made to open the connection. The basic format of a connection string consists of a series of keyword/value pairs separated by semicolons. The equal sign (=) connects each keyword and its value. To include values that contain a semicolon, single-quote character, or double-quote character, the value must be enclosed in double quotes. If the value contains both a semicolon and a double-quote character, the value can be enclosed in single quotes. The single quote is also useful if the value begins with a double-quote character. Conversely, the double quote can be used if the value begins with a single quote. If the value contains both single-quote and double-quote characters, the quote character used to enclose the value must be doubled each time it occurs within the value. To include preceding or trailing spaces in the string value, the value must be enclosed in either single quotes or double quotes. Any leading or trailing spaces around integer, Boolean, or enumerated values are ignored, even if enclosed in quotes. However, spaces within a string literal keyword or value are preserved. Using .NET Framework version 1.1, single or double quotes may be used within a connection string without using delimiters (for example, Data Source= my'Server or Data Source= my"Server), unless a quote character is the first or last character in the value. To include an equal sign (=) in a keyword or value, it must be preceded by another equal sign. For example, in the hypothetical connection string "key==word=value" the keyword is "key=word" and the value is "value". If a specific keyword in a keyword= value pair occurs multiple times in a connection string, the last occurrence listed is used in the value set. Keywords are not case sensitive. The following table lists the valid names for keyword values within the ConnectionString.
The following table lists the valid names for connection pooling values within the ConnectionString. For more information about connection pooling, see Connection Pooling for the MySql Data Provider.
When setting keyword or connection pooling values that require a Boolean value, you can use 'yes' instead of 'true', and 'no' instead of 'false'. Note The MySql Data Provider uses the native socket protocol to communicate with MySQL. Therefore, it does not support the use of an ODBC data source name (DSN) when connecting to MySQL because it does not add an ODBC layer. CAUTION In this release, the application should use caution when constructing a connection string based on user input (for example when retrieving user ID and password information from a dialog box, and appending it to the connection string). The application should ensure that a user cannot embed extra connection string parameters in these values (for example, entering a password as "validpassword;database=somedb" in an attempt to attach to a different database). Examples The following example creates a MySqlConnection and sets some of its properties public void CreateConnection() { MySqlConnection myConnection = new MySqlConnection(); myConnection.ConnectionString = "Persist Security Info=False;database=myDB;server=myHost;Connect Timeout=30;user id=myUser; pwd=myPass"; myConnection.Open(); } Examples The following example creates a MySqlConnection in Unix environment with Mono installed. MySQL socket filename used in this example is "/var/lib/mysql/mysql.sock". The actual filename depends on your MySQL configuration. public void CreateConnection() { MySqlConnection myConnection = new MySqlConnection(); myConnection.ConnectionString = "database=myDB;server=/var/lib/mysql/mysql.sock;user id=myUser; pwd=myPass"; myConnection.Open(); } See Also ReferenceHow do I fix MySQL timeout expired?The default command timeout is 30 seconds, but you can change this like so: MySqlCommand cmd = new MySqlCommand(); cmd. CommandTimeout = 60; You can also set the command timeout to zero in order to make MySQL wait indefinitely for results to come back.
How can I increase MySQL connection time limit?Change the MySQL timeout on a server. Log in to your server by using Secure Shell® (SSH).. Use the sudo command to edit my. ... . Locate the timeout configuration and make the adjustments that fit your server. ... . Save the changes and exit the editor.. What is MySQL connection timeout?MySqlConnection. ConnectionTimeout Property. Gets the time to wait while trying to establish a connection before terminating the attempt and generating an error.
How long do MySQL connections last?Details. By default, MySQL server terminates a client connection after 28800 seconds of inactivity. Often database administrators change this value to a lower number. This results in a broken connection if the user does not submit any query for a long period of time.
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