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4.2. Stopping JBoss Fuse


Abstract

You can stop an instance of Red Hat JBoss Fuse either from within a console, or using a stop script.

Stopping an instance from a local console

If you launched the Karaf instance by running fuse or fuse client, you can stop it by doing one of the following at the karaf> prompt:
  • Type shutdown
  • Press Ctrl+D

Stopping an instance running in server mode

You can stop a locally running Karaf instance (root container), by invoking the stop(.bat) from the InstallDir/bin directory, as follows:
Windows
bin\stop.bat
Linux/UNIX
./bin/stop
The shutdown mechanism invoked by the Karaf stop script is similar to the shutdown mechanism implemented in Apache Tomcat. The Karaf server opens a dedicated shutdown port (not the same as the SSH port) to receive the shutdown notification. By default, the shutdown port is chosen randomly, but you can configure it to use a specific port if you prefer.
You can optionally customize the shutdown port by setting the following properties in the InstallDir/etc/config.properties file:
karaf.shutdown.port
Specifies the TCP port to use as the shutdown port. Setting this property to -1 disables the port. Default is 0 (for a random port).
karaf.shutdown.host
Specifies the hostname to which the shutdown port is bound. This setting could be useful on a multi-homed host. Defaults to localhost.
Note
If you wanted to use the bin/stop script to shut down the Karaf server running on a remote host, you would need to set this property to the hostname (or IP address) of the remote host. But beware that this setting also affects the Karaf server located on the same host as the etc/config.properties file.
karaf.shutdown.port.file
After the Karaf instance starts up, it writes the current shutdown port to the file specified by this property. The stop script reads the file specified by this property to discover the value of the current shutdown port. Defaults to ${karaf.data}/port.
Note
If you wanted to use the bin/stop script to shut down the Karaf server running on a remote host, you would need to set this property equal to the remote host's shutdown port. But beware that this setting also affects the Karaf server located on the same host as the etc/config.properties file.
karaf.shutdown.command
Specifies the UUID value that must be sent to the shutdown port in order to trigger shutdown. This provides an elementary level of security, as long as the UUID value is kept a secret. For example, the etc/config.properties file could be read-protected to prevent this value from being read by ordinary users.
When Apache Karaf is started for the very first time, a random UUID value is automatically generated and this setting is written to the end of the etc/config.properties file. Alternatively, if karaf.shutdown.command is already set, the Karaf server uses the pre-existing UUID value (which enables you to customize the UUID setting, if required).
Note
If you wanted to use the bin/stop script to shut down the Karaf server running on a remote host, you would need to set this property to be equal to the value of the remote host's karaf.shutdown.command. But beware that this setting also affects the Karaf server located on the same host as the etc/config.properties file.

Stopping a child container instance

Apache Karaf enables you to create and manage child container instances using the admin family of console commands (for example, using admin:create, admin:start, admin:stop, and so on). To stop the ChildContainerName child container running on your local host, invoke the admin(.bat) script from the command line, as follows:
Windows
bin\admin.bat stop ChildContainerName
Linux/UNIX
./bin/admin stop ChildContainerName

Stopping a remote instance

You can stop a container instance running on a remote host as described in Section 8.3, “Stopping a Remote Container”.
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