ZK Tomcat Clustering Timeout

asked 2013-01-29 20:31:51 +0800

carpolva
155 ● 4

updated 2013-01-29 20:34:36 +0800

Hi !!

I'm still working on a clustering example, this is my new issue (thanks for the last help) :D

I will omit all the clustering configuration (unless you need this information). Here is a .zul fragment:

<label id="myLabel" value="0"/>
<button id="myButton" label="Generate Value (smart)" forward="onClick=onClickGenerate()">
       <attribute w:name="onClick">
          <![CDATA[
              var value = 'XXX';
              var myLabel = this.$f('myLabel');
              myLabel.setValue(value);
              myLabel.smartUpdate('value', value);
          ]]>
       </attribute>
</button>
<button label="Generate Value (server)" forward="onClick=onClickGenerate2()"/>

Here is a java bean fragment:

public class MyBean extends GenericForwardComposer implements Serializable {
       private Label myLabel;

       public void doAfterCompose(Component comp) {
             try {
                 super.doAfterCompose(comp);
                 myLabel.setAttribute("org.zkoss.zk.ui.updateByClient", true);
             } catch (Exception e) {}
       }

       public void onClickGenerate(ForwardEvent event){
             System.out.println("Label value: " + myLabel.getValue());
       }

       public void onClickGenerate2(ForwardEvent event){
             myLabel.setValue("ZZZ");
       }
}

The zk.xml

<zk>
  <system-config>
    <ui-factory-class>org.zkoss.zk.ui.http.SerializableUiFactory</ui-factory-class>
  </system-config>
  <listener>
    <listener-class>org.zkoss.zkplus.cluster.ClusterSessionPatch</listener-class>
  </listener>
  <device-config>
    <device-type>ajax</device-type>
    <timeout-uri>/timeout.zul</timeout-uri>
  </device-config>
</zk>

As you can see, it only has two ways of updating the label value (through smartUpdate in the client side or invoking the server side).

There're two test cases:

1. Two Tomcat nodes in the same machine.

2. Two Tomcat nodes in different machines.

In the first case there is no problem, in the second case... when I press a button (no matter which one) I'm redirected to the timeout.zul page with its famous message:

"The page or component you request is no longer available. This is normally caused by timeout, opening too many Web pages, or rebooting the server"

I've tried a lot of alternatives reading other different clustering posts, but without success (maybe I'm missing something).

Any help will be appreciated.

Thank you very much :D