Timesten - Direct Connection

About

When the client application resides on the same machine as the TimesTen Server, you can use shared memory for the inter-process communication (IPC).

The best response time is achieved with TimesTen running in-process with the application (also known as “direct mode”).

This can be useful for:

• performance purposes
• or to allow 32-bit client applications to communicate with a 64-bit database on the server.

The TimesTen Data Manager driver is used with direct connection.

A direct JDBC connection contains the word direct in the Jdbc Url such as:

jdbc:timesten:direct:dsn=myDSN

Articles Related

Configuration

In the ttendaemon.options:

• The -serverShmIpc entry tells the TimesTen Server to accept a client connection that intends to use a shared memory segment for IPC.
• The -serverShmSize size tells the TimesTen Server to create a shared memory segment of the specified size in MB. If this entry is missing, the TimesTen Server creates a shared memory segment of 64MB.

Support

maximum of 16 different instances

TimesTen supports a maximum of 16 different instances of the shared memory IPC-enabled server. If an application tries to connect to more than 16 different shared memory segments it receives an ODBC error.

Documentation / Reference

• Using shared memory for Client/Server IPC