/tr>

  <tr>
    <td>operation</td>
    <td> express one
    <ul>
    <li>==  equals</li>
    <li>!=  not equals</li>
    <li>&gt; greater than (&amp;gt;)</li>
    <li>&gt;= greater than or equals (&amp;gt;=)</li>
    <li>&lt; lesser than (&amp;lt;)</li>
    <li>&lt;= lesser than or equals (&amp;lt;=)</li>
    </ul>
    </td>
    <td><code class="noHighlight">==</code></td>
  </tr>

</table>

<p>
Wait for server connection and that cluster backup node is accessable
</p>
<div class="codeBox"><pre><code>&lt;t