Agents Administration - Tests
 

Configuration of LCNodeStatusTest

This test auto-discovers the nodes in the target cluster and for each node, the test reports the current status. This test also reports whether/not each node is the owner node and if the owner node was changed recently. Using this test, administrators can isolate the nodes that have been offline or under maintenance for a longer duration and analyze the reason for the same. This test also helps administrators detect frequent failover between the nodes and can initiate steps to analyze why the nodes have been failing over frequently.

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.

  • In the HOST text box, specify the HOST for which this test is to be configured.

  • Specify the port at which the specified host listens to in the PORT text box. By default, this is NULL.

  • If the REPORT BY OWNER NODE ONLY flag is set to Yes, then this test will report metrics only for the owner node and not for the other nodes in the cluster. On the other hand, if the flag is set to No, then, it indicates that the test will report metrics for all the nodes in the cluster. By default, this flag is set to No.

  • By default,USE SUDO flag is set to Yes, indicating that the test uses sudo command to collect the daemon-related metrics. If this flag is set to No, then the test will not collect the metrics using sudo command.

  • The SUDO PATH parameter is relevant only when the USE SUDO parameter is set to Yes. By default, the SUDO PATH is set to none. This implies that the sudo command is in its default location - i.e., in the /usr/bin or /usr/sbin folder of the target host. In this case, once the USE SUDO flag is set to Yes , the eG agent automatically runs the sudo command from its default location to allow access to the daemon process. However, if the sudo command is available in a different location in your environment, you will have to explicitly specify the full path to the sudo command in the SUDO PATH text box to enable the eG agent to run the sudo command.

  • 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, eG 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, by default, for a particular server, choose the On option against DETAILED DIAGNOSIS. 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 bad and normal 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 button will appear in this page. Clicking on this button 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.