WebPageUrl(WebEngine: 43 - No response from host - connection lost! , SendRequest first attempt) This error message indicates that SilkPerformer did not receive a valid response from the server and assumes that the connection has been dropped. This error could be server-side, or network related. To pinpoint the root cause you should monitor the server and network devices while you are running a loadtest with an increasing workload using the Server Analysis Module. The following default measures will be useful: Active Users: Use this measure to determine how many users are active. Transactions per Second: If you see a sharp decrease in this graph, it may indicate that some part of the system is exceeding its limits. Errors per Second: Use this measure to identify errors. Concurrent Connections: Use this measure with Errors per Second to pinpoint bottlenecks. Data Sent and Received: Use these measures to help determine if the issue is bandwidth related. Page Time: Use this measure to estimate network time (Page Time= Server Busy Time + Network Time). Server Busy Time: Use this measure to indicate the length oftime that the server is acting on the request. You should also monitor operating system data of your server i.e. CPU and Memory counters to see if there is any correlation with errors. Created On: 06 September 2011 Original KBID: 18036 Old KB# 34630
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