Webclient Load Balacer Servoy Single Server

Classic Servoy
1

Hello ,
I tried to do as suggested on http://wiki.servoy.com/display/public/D … stallation for single servoy server using apache in front of servoy , so that my web client would be quicker . But its not working here is what i receive .

"No data received"
Unable to load the webpage because the server sent no data.

My Jk module is mod_jk/1.2.35 PHP/5.2.17
I have centos with cpanel .
Default HTTPD port is 8081 , and right now no domain name so using external IP

My Server.xml

<Server port="8005" shutdown="SHUTDOWN_NOW">
  
  <Service name="Catalina">
    
    <Connector port="8009"
   enableLookups="false" maxThreads="500" connectionTimeout="60000"
   redirectPort="8443" useBodyEncodingForURI="true" protocol="AJP/1.3" />



    
    
    <Engine jvmRoute="servoy1" name="Catalina" defaultHost="localhost">

      
      <Realm className="org.apache.catalina.realm.MemoryRealm" />

      
         <Host name="localhost"  appBase="webapps"
                            unpackWARs="true" autoDeploy="true"
                            xmlValidation="false" xmlNamespaceAware="false">

        
        <Valve className="org.apache.catalina.valves.AccessLogValve"
                 directory="logs"  prefix="localhost_access_log." suffix=".txt"
                 pattern="common"/>

        <Context path="/lib" docBase="../../lib"/>
        <Context path="/plugins" docBase="../../plugins"/>
        <Context path="/beans" docBase="../../beans"/>
        <Context path="/lafs" docBase="../../lafs"/>
      </Host>
    </Engine>
  </Service>
</Server>

My httpd.conf

LoadModule jk_module modules/mod_jk.so
# JK/Worker configuration

    # Where to find workers.properties
    JkWorkersFile conf/workers.properties
    # Where to put jk logs
    JkLogFile logs/mod_jk.log
    # Set the jk log level [debug/error/info]
    JkLogLevel    info
    JkMount /* loadbalancer

    # In case you want to be able to monitor JK status
    # <Location /jkmanager/>
    #    JkMount jkstatus
    #    Order deny,allow
    #    Deny from all
    #    Allow from 127.0.0.1
    # </Location>ls

Workers.property

# The workers that your plugins should create and work with
# ---------------------------------------------------------
# add "jkstatus" to this list in case you want to be able to monitor JK status
worker.list=servoy1, servoy2, loadbalancer


# Define ajp13 workers for Servoy Tomcat servers in cluster
# ---------------------------------------------------------

# WORKER servoy1
worker.servoy1.port=8009
worker.servoy1.host=localhost
worker.servoy1.type=ajp13
worker.servoy1.fail_on_status=-503
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
#  ----> lbfactor must be > 0
#  ----> Low lbfactor means less work done by the worker.
worker.servoy1.lbfactor=1




# Load balancer
# -------------
# The loadbalancer (type lb) workers perform wighted round-robin
# load balancing with sticky sessions.
# Note:
#  ----> If a worker dies, the load balancer will check its state
#        once in a while. Until then all work is redirected to peer
#        workers.
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=servoy1
worker.loadbalancer.sticky_session = true

# In case you want to be able to monitor JK status
# http://localhost:8080/jkmanager/
# ------------------------------------------------

# Define a 'jkstatus' worker using status
#worker.jkstatus.type=status

Is there anything i am missing .

2

nestrocuation:
I tried to do as suggested on http://wiki.servoy.com/display/public/D … stallation for single servoy server using apache in front of servoy, so that my web client would be quicker. But its not working

Load balancing with one Servoy server isn’t going to make anything faster. And setting up Apache to use its content compression instead of Tomcat’s is basically an unnoticeable improvement in the scheme of things.

We’ve been pounding at web client performance for over a year now. Basically, there are a whole bunch of coding and layout things that can cause web client to really slow down. And it’s not considered fast to begin with because of the outdated technology being used. Chances are your app has a few of those things. Servoy web client is great for fast CRUD form development (and server-side coding tasks), but implementing advanced web applications that are snappy takes a whole different level of skill to get the last ounce of speed out of it.

The good news is we’re working hard on something right now that will make web client go a bazillion times faster. Minimum. Stay tuned.

3

David ,

Thanks and You are right , servoy is not that great and mostly not helpful but its decent enough for advanced web application .

With servoy 6 , and lots of layout changes and server side coding along with tomcat compression and SSD , my server speed has increased MIllion time not bazillion times. But i am trying to juice out everything Millisecond i get to make the app more quicker for users .

Its rude to ask magicians for their trick , but the good part is we are software developers if you think there is something that might increase the speed , would really appreciate if you can share .But i would still like to learn how to setup Webclient Load Balacer Servoy Single Server.

4

Not sure exactly where your problem is but I’d start by simplifying your JK properties file…

worker.list=servoy

worker.servoy.type=ajp13
worker.servoy.host=localhost
worker.servoy.port=8009

And then your JKMount changes to:

JkMount /* servoy