Cluster router load blancer

To set up a load balancer using the Apache HTTP Server on Windows, you can use the httpd-2.2.22-win32-x86-openssl-0.9.8t.msi installer. Follow these steps to configure Apache as a load balancer:

Step 1: Install Apache HTTP Server

1. Download and Run the Installer:
• Download the installer httpd-2.2.22-win32-x86-openssl-0.9.8t.msi.
• Run the installer and follow the prompts to complete the installation.
2. Basic Installation Steps:
• Choose a network domain and server name (e.g., example.com).
• Choose an email address for the server administrator.
• Choose for whom to install Apache (e.g., All Users) and the path to the Apache server root directory.

Step 2: Enable Required Modules

1. Open the Apache configuration file, usually located at C:\Program Files (x86)\Apache Software Foundation\Apache2.2\conf\httpd.conf.
2. Open httpd.conf and change port number in Listen 9999
3. Run apache server
4. Open this url like www.localhost:9999 then see that's it works!
5. You think that your install is fine.
6. Again, open httpd.conf and add bellow code at last position. Where ‘Kamical’ is a project name change according to your project

httpd.conf

LoadModule jk_module modules/mod_jk.so JkWorkersFile conf/workers.properties JkLogFile logs/mod_jk.log JkLogLevel info JkMount /Kamical loadbalancer JkMount /* loadbalancer JkMount  /status  stat

 

Step 2: Declare node details and ajp port in workers.properties

1.  workers.properties copy and paste inside C:\Program Files (x86)\Apache Software Foundation\Apache2.2\conf\.
2. mod_jk.so copy and paste inside C:\Program Files (x86)\Apache Software Foundation\Apache2.2\conf\.

worker.list=node1,node2,loadbalancer,stat #worker.list=node1,loadbalancer,stat worker.node1.port=8310 worker.node1.host=172.30.70.39 #worker.node1.host=localhost worker.node1.type=ajp13 worker.node1.lbfactor=1 worker.node2.port=8309 #worker.node2.host=172.30.66.55 worker.node2.host=172.30.70.22 worker.node2.type=ajp13 worker.node2.lbfactor=2 worker.loadbalancer.type=lb worker.loadbalancer.balanced_workers=node1,node2 #worker.loadbalancer.balanced_workers=node1 #worker.loadbalancer.balance_workers=node1, node2 #worker.loadbalancer.sticky_session=1 worker.stat.type=status #worker.lb.stickysessions=true

 

Step 3: Include the Virtual Host Configuration at Node 1 server

1. Add the following configuration to set up the load balancer:

Server.xml

<Engine name="Catalina" defaultHost="localhost" jvmRoute="node1">

 

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8">  <Manager  className="org.apache.catalina.ha.session.DeltaManager"     expireSessionsOnShutdown="false"     notifyListenersOnReplication="true"/>    <Channel className="org.apache.catalina.tribes.group.GroupChannel">   <Membership className="org.apache.catalina.tribes.membership.McastService"      address="228.0.0.4"      port="45564"      frequency="500"      dropTime="3000"/>   <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">    <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>   </Sender>      <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"      address="auto"      port="4000"      autoBind="100"      selectorTimeout="5000"      maxThreads="6"/>        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>     <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>    </Channel>    <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/>    <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>    <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>    <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>    </Cluster>

 

 

Step 4: Include the Virtual Host Configuration at Node 2 server

1. Add the following configuration to set up the load balancer:

Server.xml

<Engine name="Catalina" defaultHost="localhost" jvmRoute="node2">

 

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8">  <Manager  className="org.apache.catalina.ha.session.DeltaManager"     expireSessionsOnShutdown="false"     notifyListenersOnReplication="true"/>    <Channel className="org.apache.catalina.tribes.group.GroupChannel">   <Membership className="org.apache.catalina.tribes.membership.McastService"      address="228.0.0.4"      port="45564"      frequency="500"      dropTime="3000"/>   <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">    <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>   </Sender>      <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"      address="auto"      port="4000"      autoBind="100"      selectorTimeout="5000"      maxThreads="6"/>        <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>     <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>    </Channel>    <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/>    <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>    <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>    <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>    </Cluster>

 

Step 5: Restart Apache

1. Open the Apache Service Monitor from the Start Menu or use the Command Prompt.
2. Restart the Apache server to apply the changes:

sh

httpd -k restart

 

Step 6: Verify the Setup

1. Open your web browser and navigate to https://www.kamical.com.
2. Verify that the requests are being distributed across your backend servers.

Notes

• SSL Certificates: Ensure you replace the paths (C:/path/to/your/certificate.crt, etc.) with the actual paths to your SSL certificate files.
• BalancerMember: Modify the BalancerMember directives to point to your actual backend servers.
• Firewall and Ports: Make sure that your firewall allows traffic on port 443 and that your backend servers are accessible from the Apache server.
• Error Logs: Check the Apache error logs if you encounter any issues. Logs are typically found in C:/Program Files (x86)/Apache Software Foundation/Apache2.2/logs/.
• LoadModule - this command makes the mod_jk module available for use. The extension of the module itself will vary by operating system.
• JkWorkersFile - sets the path to the worker configuration file, which we will create in the next step.
• JkShmFile - sets the path to the shared memory files for the module. Generally, you'll want to keep this with the logs.
• JkLogFile - sets the path to the module log file.
• JkLogLevel - sets the level of logging for the module. The valid values for this attribute, in descending order by verbosity, are "debug", "error" or "info".
• JkMount - this is used to map a certain URL pattern to a specific worker configured in the worker configuration file. Here, we use it twice - once to enable
• jkmanager as the access URL for
• jkstatus, a virtual monitoring worker, and once to map all requests we want to be handled by the cluster to the "lb" worker, a virtual worker that contains the load balancing capability
  Location - this is a security constraint. The settings we have included allow access to the
• jkmanager only from the localhost

By following these steps, you should be able to set up Apache HTTP Server as a load balancer on Windows using the specified MSI installer.