Oracle 10g client where is tnsnames

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Podcast Explaining the semiconductor shortage, and how it might end. Does ES6 make JavaScript frameworks obsolete? Featured on Meta. Now live: A fully responsive profile. Linked 4. Related 2. Example Client Load Balancing in tnsnames. These parameters are described in this section. The protocol address section of the tnsnames. To allow the caller to detect a terminated remote server, typically it takes 2 hours or more to notice.

Operating system TCP configurables, which vary by platform, define the actual keepalive timing details. When you set the parameter to on , yes , or true , Oracle Net fails over at connect time to a different address if the first protocol address fails. When you set the parameter to off , no , or false , Oracle Net tries one protocol address. When you set the parameter to on , yes , or true , Oracle Net goes through the list of addresses in a random sequence, balancing the load on the various listener or Oracle Connection Manager protocol addresses.

When you set the parameter to off , no , or false , Oracle Net tries the protocol addresses sequentially until one succeeds. The default value for this parameter is specific to the operating system. The default for the Linux 2. To instruct Oracle Net to optimize the transfer rate of data packets being sent across the network with a specified session data unit SDU size. The default value for this parameter is operating system specific. When you set this parameter to on or yes , Oracle Net uses each address in order until the destination is reached.

To use Oracle Connection Manager, an initial connection from the client to Oracle Connection Manager is required, and a second connection from Oracle Connection Manager to the listener is required. This parameter should only be used if the application supports both an Oracle Rdb and Oracle database service, and you want the application to load balance between the two.

The connection data section of the tnsnames. The following parameters are available:. To instruct Oracle Net to fail over to a different listener if the first listener fails during run time. Depending upon the configuration, the session or any SELECT statements which were in progress are automatically failed over. A separate net service name must be created for the failover node. TYPE : Specifies the type of failover. For example, if a user's connection is lost, then a new session is automatically created for the user on the backup.

This type of failover does not attempt to recover selects. In , two address lists are presented. The client first tries either the first or second protocol address at random, then tries protocol addresses three and four sequentially.

Example Multiple Address Lists in tnsnames. When a connect descriptor in a tnsnames. The client is instructed to connect to an protocol address of the first Oracle Connection Manager, as indicated by:.

The first Oracle Connection Manager is then instructed to connect to the first protocol address of another Oracle Connection Manager. If the first protocol address fails, then it tries the second protocol address.

This sequence is specified with the following configuration:. The Oracle Connection Manager then connects to the database service using the following protocol address:.

Example Client Load Balancing in tnsnames. This section lists and describes the tnsnames. Configuration parameters fall into the following categories:. These parameters are described next. The protocol address section of the tnsnames. When you set the parameter to on , yes , or true , Oracle Net, at connect time, fails over to a different address if the first protocol address fails. When you set the parameter to off , no , or false , Oracle Net tries one protocol address.

If you use the standard listener it is not necessary to configure it. If you have not yet configured any listener on your DB server you can use netmgr on the server to configure one. If you need to configure tnsnames. Listener is configured only on server side. If listener is not started for a particular database, client connection cannot be made.

You can use Oracle Net Configuration Assistant to configure the listener. No Account? Sign up. By signing in, you agree to our Terms of Use and Privacy Policy. Already have an account?