Agents Administration - Tests
 

Configuration of CtxNsIsWebSrvTest

This test tracks requests to each web server managed by NetScaler ADC and reports the time every server takes to process the requests. The test thus sends out proactive alerts to administrators if it finds that any web server is responding very slowly to client requests. Additionally, the test also indicates if the slowdown experienced by the user can be attributed to a latent server-side network. This way, the test helps administrators identify slow servers and rapidly isolate the reason for the slowness, so that the problem can be fixed quickly and normalcy restored in no time.

The default parameters associated with this test are:

  • The TEST PERIOD list box helps the user to decide how often this test needs to be executed. It is recommended that you set the TEST PERIOD to 5 minutes. This is because, the Nitro API using which the eG agent collects metrics from Web Insight, is capable of capturing only the performance data related to the last 5 minutes.

  • Specify the host for which the test is to be configured, in the HOST text box.

  • To connect to Web Insight and collect the metrics it captures, the eG agent needs to be configured with the credentials of a user with read-only permissions to Web Insight. Type the name of this user against INSIGHT USERNAME text box and the password of this user against INSIGHT PASSWORD text box. Then, confirm the password by retyping it in the CONFIRM PASSWORD text box.

  • By default, Web Insight is not SSL-enabled. This is why, the SSL flag is set to No by default. If it is SSL-enabled, then change this flag to Yes.

  • The DD FREQUENCY refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time this test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD FREQUENCY.

  • To make diagnosis more efficient and accurate, the eG Enterprise suite embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the DETAILED DIAGNOSIS capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

    The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

    • The eG manager license should allow the detailed diagnosis capability

    • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.

  • If multiple components of the same component type are awaiting configuration, then an APPLY TO OTHER COMPONENTS check box will appear in this page. Clicking on this check box will allow you to apply the configuration to all/selected components of that type.

  • Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing the configuration for specific servers, a “*” beside the text box corresponding to the parameter signifies that these values have to be manually configured by the user. The parameter values that require to be configured will typically be prefixed with a “$” or contain a series of “*”. A value of "none" in the parameter value indicates that the corresponding parameter value can be changed if required.