How do I Direct Requests From IIS to Multiple Pramati Servers?

By modifying the iisplugin.props file, you can make WebGate for IIS redirect requests to more than one Pramati Server, based on the context root in the request URL. Here’s an example:

[node-info-begin] WebGateHost localhost:8181 SecureConnection true ServerAuthRequired true TrustedCAFile C:/IISPlugin/defaultCAStore/default.pem MaxSockPool 20 Context admin Administrator CacheContentType .jpg,.gif,.bmp,.htm,.css ErrorPage C:/PServer/add_ons/webgate/iis/error.htm [node-info-end]

The requests under specified context roots will then be redirected to the specified WebGate host.

WebGate Failover for Pramati Server

When WebGate is loaded, it tries to create a pool of connections to a node that is specified first in the comma-separated list of nodes. If it successfully creates the connection, it serves the request using the pool. Here is a sample entry of Pramati Server Cluster Nodes in iisplugin-props:

[node-info-begin] WebGateHost localhost:8181, johnsmith:8381, joe:8182 SecureConnection true ServerAuthRequired true TrustedCAFile C:/IISPlugin/defaultCAStore/default.pem MaxSockPool 20 Context readtest bankWeb Administrator MaxSockPool 10 #The following content types separated with a comma will be cached. CacheContentType .jpg,.gif,.bmp,.htm,.html ErrorPage C:/PServer/add_ons/webgate/iis/error.htm [node-info-end]

If the localhost fails, the plugin performs a failover routine and attempts to create a connection pool for johnsmith, the next node in sequence. If all connections fail, or no node responds, an error message is generated.

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