Starting and Stopping the Daemon

• Automatically Starting the TimesTen Daemon

• Manually Starting and Stopping the Daemon

Automatically Starting the TimesTen Daemon

You have two options for automatic management of the TimesTen daemon.

Choose only one of these options.

• Automatically start and stop TimesTen daemon when the operating system boots and shuts down. See Using the setuproot Script to Automatically Start the TimesTen Daemon.

• Automatically manage the TimesTen daemon using systemd. See Using systemd to Automatically Manage the TimesTen Daemon.

  Note:

  See Manually Starting and Stopping the Daemon for details on how to use the ttDaemonAdmin utility to manually start and stop the TimesTen daemon.

Using the setuproot Script to Automatically Start the TimesTen Daemon

If you run the setuproot script for SysV, then the TimesTen daemon is automatically started and stopped when the operating system boots and shuts down.

When you run the TimesTen daemon startup setuproot script (as root), this script installs the appropriate SysV initialization scripts for TimesTen in the /etc/init.d directory.

The following sections describe the differences between running the setuproot script for TimesTen Classic or TimesTen Scaleout:

• Using the setuproot script for SysV on TimesTen Classic

• Using the setuproot script for SysV on TimesTen Scaleout

Using the setuproot script for SysV on TimesTen Classic

You can find the setuproot script in the timesten_home/bin directory. After the SysV intialization scripts are installed, TimesTen is automatically started when the operating system boots and automatically stopped on operating system shutdown.

When using SysV, run the setuproot script as follows:

cd $TIMESTEN_HOME/bin
setuproot -install

In all other scenarios, the instance administrator uses the ttDaemonAdmin utility to manage the TimesTen daemon. See ttDaemonAdmin in the Oracle TimesTen In-Memory Database Reference.

Using the setuproot script for SysV on TimesTen Scaleout

You can find the setuproot script in the timesten_home/bin directory of every instance of the grid. After you run the setuproot script, the daemon is automatically started for each data instance as part of the operations for the ttGridAdmin dbOpen or ttGridAdmin modelApply commands.

For TimesTen Scaleout, the directions on how to run the setuproot script are in the Setting Instances to Automatically Start at System Startup section in the Oracle TimesTen In-Memory Database Scaleout User's Guide.

Using systemd to Automatically Manage the TimesTen Daemon

For TimesTen Classic, the root user can set up systemd to use for automatic management (including starting and stopping) of the TimesTen daemon.

Once you setup and start systemd, you can no longer use the ttDaemonAdmin utility to manage the daemon. See Using systemd to Manage a TimesTen Service in Oracle TimesTen In-Memory Database Installation, Migration, and Upgrade Guide for full details on installing, configuring, and managing systemd.

Perform the following to setup systemd to automatically manage the TimesTen daemon:

Note:

These steps are an overview of what you must perform to use systemd. See About Creating an Instance on Linux/UNIX in Oracle TimesTen In-Memory Database Installation, Migration, and Upgrade Guide.

1. Create the TimesTen instance with systemd.

2. Modify the TimesTen service file.

3. As the root user, run the timesten_home/bin/setuproot utility script with the -install -systemd options. The setuproot script copies the systemd initialization scripts to the appropriate location.

4. As the root user, run the systemd systemctl start command to start the TimesTen service.

   Note:

   You can use the systemd systemctl commands to manually control systemd.

Once set up and started, systemd takes precedence over any SysV initialization scripts.

Manually Starting and Stopping the Daemon

By default, you can use the ttDaemonAdmin utility to start and stop the TimesTen daemon.

You must be the instance administrator to start and stop the TimesTen daemon with the ttDaemonAdmin utility.

Note:

See Automatically Starting the TimesTen Daemon for details on how to automatically start and stop the TimesTen daemon.

• For TimesTen Classic, the instance administrator manually manages the TimesTen daemon. To manually start and stop the TimesTen main daemon, use the ttDaemonAdmin utility with the -start or -stop option.

• For TimesTen Scaleout, run the ttDaemonAdmin -start or -stop options within the ttGridAdmin instanceExec command to manually start the daemon for a data instance.

For more information on ttDaemonAdmin, see ttDaemonAdmin. For details on ttGridAdmin instanceExec, see Execute a Command or Script on Grid Instances (instanceExec) in Oracle TimesTen In-Memory Database Reference. See Automatically Starting the TimesTen Daemon for details on the setuproot script.