datatable paginator primefaces not working - jsf

Question

I'm trying to include the paginator on my datatable but it's not working, i have the table and the paginator shows but it's not working, always int page 1 !!
this is my code :
![datatable paginator not working ][1]
<h:form id="form">
<p:outputPanel id="users">
<p:dataTable id="usersTable" value="#{personBean.allPersons}" paginator="true" rows="4" var="person" >
<p:column>
<f:facet name="header">
<h:outputText value="Name" />
</f:facet>
<p:commandLink action="#{personBean.editPerson}">
<h:outputText value="#{person.name}" />
<f:setPropertyActionListener target="#{personBean.person}"
value="#{person}" />
</p:commandLink>
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Age" />
</f:facet>
<p:commandLink action="#{personBean.editPerson}">
<h:outputText value="#{person.age}" />
<f:setPropertyActionListener target="#{personBean.person}"
value="#{person}" />
</p:commandLink>
</p:column>
</p:dataTable>
</p:outputPanel>
<p:commandButton value="Create New User"
action="#{personBean.newPerson}" />
</h:form>
always i have the same table, i can't move to 2