 class="attributeName">threshold</code></td><td>
        <p>Minimum duration in seconds after which a thread is considered stuck.
        Default is 600 seconds. If set to 0, the detection is disabled.</p>
        <p>Note: since the detection (and optional interruption) is done in the
        background thread of the Container (Engine, Host or Context) declaring
        this Valve, the threshold should be higher than the
        <code>backgroundProcessorDelay</code> of this Container.</p>
      </td></tr><t