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<strong>Tornado</strong> 2.0<br />

User’s Guide<br />

3.5 Managing Target Servers<br />

The target-server architecture of <strong>Tornado</strong> permits great flexibility, but also<br />

introduces a number of housekeeping details to manage situations like the<br />

following:<br />

■<br />

the target you need to use does not have a server running<br />

■<br />

other developers keep interfering with your target over the net<br />

■<br />

you want some other developers to have access to your target, but not<br />

everyone<br />

The Target menu in the <strong>Tornado</strong> Launcher offers commands that allow you to<br />

manage these chores and related details to do with target servers. The small<br />

buttons immediately below the menu bar provide quick access to the same<br />

commands.<br />

The following list describes each button and Target menu command:<br />

Button Menu Description<br />

Create…<br />

Unregister<br />

Reattach<br />

Define and start up a new target server. See 3.5.1 Configuring<br />

a Target Server, p.73.<br />

Remove the selected target server from the <strong>Tornado</strong><br />

registry’s list of available servers. Do not use this command<br />

routinely. Under most circumstances, the registry<br />

automatically removes the entry for any target server that<br />

has been killed (for example, due to a host system crash).<br />

This command can also be used to do so. The registry honors<br />

the Unregister command only if the server does not respond<br />

to the registry.<br />

CAUTION: Even if a target server is not responsive, it is not<br />

always appropriate to unregister it; the server may simply<br />

be too busy to respond, or a heavy network load may be<br />

interfering. The Unregister command reminds you of this<br />

possibility and requests confirmation before it takes effect.<br />

Make sure the server is really gone before you unregister it.<br />

Reconnect the selected target server to the underlying target.<br />

This command is rarely necessary, because target servers<br />

attempt to reconnect automatically when required. Use this<br />

command after turning on or connecting a target that has<br />

been unavailable, if you want to reattach a running server<br />

explicitly (rather than by running a tool).<br />

72

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