Primefaces <p:blockUI> hidding growl <p:growl> after releasing - jsf

Question

I'm trying to update message by clicking button from backing bean and in the same time after clicking button I'm trying to block this button to avoid doubleclick. Blocking occurs successfully and message appears, but after the unblocking message disappears. This happens pretty quickly. And I want the message in growl stay longer.
My .jsf snippet.
<h:form id="form">
<p:growl id="messages" />
<p:blockUI block="button" widgetVar="block"/>
<p:dataTable var="item" id="table" value="#{bean.lazyModel}"
lazy="true">
<p:column>
<p:commandButton value="#{item.actionBtn}"
update=":form:messages" action="#{bean.action}"
oncomplete="filterTableFromPanel();PF('block').hide()"
onclick="PF('block').show()">
</p:commandButton>
</p:column>
</p:dataTable>
</h:form>
In backing bean all just as usual.
public void action(){
FacesContext.getCurrentInstance().addMessage(null, msg);
}
Please, forgive me for possible mistakes, snipet is trimmed.

Answer 1

You have the option of setting the sticky or life:
sticky to keep the growl to stay visible until the user closes the growl component manually
life to set a timeout period for the component. This value will determine how long the message is visible for, and then it disappears after the life elapses. Set this value in milliseconds life="1200" (default is 6000)

Answer 2

I've resolved my problem using p:remoteCommand.
<h:form id="form">
<p:growl id="messages" />
<p:blockUI block="button" widgetVar="block"/>
<p:remoteCommand name="addMessage"
action="#{bean.addMessage}"
update=":form:messages" />
<p:dataTable var="item" id="table" value="#{bean.lazyModel}"
lazy="true">
<p:column>
<p:commandButton value="#{item.actionBtn}"
update=":form:messages" action="#{bean.action}"
oncomplete="filterTableFromPanel();PF('block').hide(); addMessage()"
onclick="PF('block').show()">
</p:commandButton>
</p:column>
</p:dataTable>
</h:form>
In backing bean I've add somethhing like this:
public void addMessage(){
FacesContext.getCurrentInstance().addMessage(null, "msg");
}