Application Event Log - AVD Test

This test reports the statistical information about the application events generated by the target Session Host / Azure Virtual Desktop.

Target of the test : An Azure Virtual Desktop

Agent deploying the test : An internal agent

Outputs of the test : One set of results for each POLICY FILTER configured

Configurable parameters for the test
Parameters	Description
Test Period	How often should the test be executed.
Host	The host for which the test is to be configured.
Port	The default port is NULL.
Log Type	Refers to the type of event logs to be monitored. The default value is application.
Policy Filter	This test can be configured with the event sources, event IDs, and event descriptions to be monitored. In order to enable administrators to easily and accurately provide this specification, this page provides the following options: Manually specify the event sources, IDs, and descriptions in the Filter text area, or, Select a specification from the predefined filter policies listed in the Filter box For explicit, manual specification of the filter conditions, you first need to select the No option against the Policy filter field. This is the default selection. To choose from the list of pre-configured filter policies, or to create a new filter policy and then associate the same with the test, select the Yes option against the Policy Filter field.
Filter	If the Policy Filter flag is set to No, then use the Filter text area to specify the event sources, event IDs, and event descriptions to be monitored. This specification should be of the following format: {Displayname}:{event_sources_to_be_included}:{event_sources_to_be_excluded}:{event_IDs_to_be_included}:{event_IDs_to_be_excluded}:{event_descriptions_to_be_included}:{event_descriptions_to_be_excluded}. For example, assume that the Filter text area takes the value, OS_events:all:Browse,Print:all:none:all:none. Here: OS_events is the display name that will appear as a descriptor of the test in the monitor UI; all indicates that all the event sources need to be considered while monitoring. To monitor specific event sources, provide the source names as a comma-separated list. To ensure that none of the event sources are monitored, specify none. Next, to ensure that specific event sources are excluded from monitoring, provide a comma-separated list of source names. Accordingly, in our example, Browse and Print have been excluded from monitoring. Alternatively, you can use all to indicate that all the event sources have to be excluded from monitoring, or none to denote that none of the event sources need be excluded. In the same manner, you can provide a comma-separated list of event IDs that require monitoring. The all in our example represents that all the event IDs need to be considered while monitoring. Similarly, the none (following all in our example) is indicative of the fact that none of the event IDs need to be excluded from monitoring. On the other hand, if you want to instruct the eG Enterprise system to ignore a few event IDs during monitoring, then provide the IDs as a comma-separated list. Likewise, specifying all makes sure that all the event IDs are excluded from monitoring. The all which follows implies that all events, regardless of description, need to be included for monitoring. To exclude all events, use none. On the other hand, if you provide a comma-separated list of event descriptions, then the events with the specified descriptions will alone be monitored. Event descriptions can be of any of the following forms - desc, or desc, or desc,or desc, or desc1desc2, etc. desc here refers to any string that forms part of the description. A leading '' signifies any number of leading characters, while a trailing '' signifies any number of trailing characters. In the same way, you can also provide a comma-separated list of event descriptions to be excluded from monitoring. Here again, the specification can be of any of the following forms: desc, or desc, or desc,or desc, or desc1desc2, etc. desc here refers to any string that forms part of the description. A leading '' signifies any number of leading characters, while a trailing '' signifies any number of trailing characters. In our example however, none is specified, indicating that no event descriptions are to be excluded from monitoring. If you use all instead, it would mean that all event descriptions are to be excluded from monitoring. By default, the Filter parameter contains the value: all:all:none:all:none:all:none. Multiple filters are to be separated by semi-colons (;). Note: The event sources and event IDs specified here should be exactly the same as that which appears in the Event Viewer window. On the other hand, if the Policy Filter flag is set to Yes, then a Filter list box will appear, displaying the filter policies that pre-exist in the eG Enterprise system. A filter policy typically comprises of a specific set of event sources, event IDs, and event descriptions to be monitored. This specification is built into the policy in the following format: {Policyname}:{event_sources_to_be_included}:{event_sources_to_be_excluded}:{event_IDs_to_be_included}:{event_IDs_to_be_excluded}:{event_descriptions_to_be_included}:{event_descriptions_to_be_excluded} To monitor a specific combination of event sources, event IDs, and event descriptions, you can choose the corresponding filter policy from the Filter list box. Multiple filter policies can be so selected. Alternatively, you can modify any of the existing policies to suit your needs, or create a new filter policy. To facilitate this, a encircled '+' button appears alongside the Filter list in the test configuration page, once the Yes option is chosen against Policy Filter. Clicking on this button leads you to a page where you can modify the existing policies or create a new one (refer to page To add a new policy, do the following:). The changed policy or the new policy can then be associated with the test by selecting the policy name from the Filter list box in this page.
DD For Information	eG Enterprise also provides you with options to restrict the amount of storage required for event log tests. Towards this end, the DD For Information and DD For Warning flags have been made available in this page. By default, both these flags are set to Yes, indicating that by default, the test generates detailed diagnostic measures for information events and warning events. If you do not want the test to generate and store detailed measures for information events, set the DD For Information flag to No.
DD For Warning	To ensure that the test does not generate and store detailed measures for warning events, set the DD For Warning flag to No.
Events During Restart	By default, the Events During Restart flag is set to Yes. This ensures that whenever the agent is stopped and later started, the events that might have occurred during the period of non-availability of the agent are included in the number of events reported by the agent. Setting the flag to No ensures that the agent, when restarted, ignores the events that occurred during the time it was not available.
Stateless Alerts	Typically, the eG manager generates email alerts only when the state of a specific measurement changes. A state change typically occurs only when the threshold of a measure is violated a configured number of times within a specified time window. While this ensured that the eG manager raised alarms only when the problem was severe enough, in some cases, it may cause one/more problems to go unnoticed, just because they did not result in a state change. For example, take the case of the EventLog test. When this test captures an error event for the very first time, the eG manager will send out a Critical email alert with the details of the error event to configured recipients. Now, the next time the test runs, if a different error event is captured, the eG manager will keep the state of the measure as Critical, but will not send out the details of this error event to the user; thus, the second issue will remain hidden from the user. To make sure that administrators do not miss/overlook critical issues, the eG Enterprise monitoring solution provides the stateless alerting capability. To enable this capability for this test, set the stateless alerts flag to Yes. This will ensure that email alerts are generated for this test, regardless of whether or not the state of the measures reported by this test changes.
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.
Detailed Diagnosis	To make diagnosis more efficient and accurate, the eG Enterprise 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.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Application errors	This refers to the number of application error events that were generated.	Number	A very low value (zero) indicates that the system is in a healthy state and all applications are running smoothly without any potential problems. An increasing trend or high value indicates the existence of problems like loss of functionality or data in one or more applications. Please check the Application Logs in the Event Log Viewer for more details.
Application information count	This refers to the number of application information events generated when the test was last executed.	Number	A change in the value of this measure may indicate infrequent but successful operations performed by one or more applications. Please check the Application Logs in the Event Log Viewer for more details.
Application warnings	This refers to the number of warnings that were generated when the test was last executed.	Number	A high value of this measure indicates application problems that may not have an immediate impact, but may cause future problems in one or more applications. Please check the Application Logs in the Event Log Viewer for more details.
Application critical errors	Indicates the number of critical events that were generated when the test was last executed.	Number	A critical event is one that an application or a component cannot automatically recover from. A very low value (zero) indicates that the system is in a healthy state and all applications are running smoothly without any potential problems. An increasing trend or high value indicates the existence of fatal/irrepairable problems in one or more applications. The detailed diagnosis of this measure describes all the critical application events that were generated during the last measurement period. Please check the Application Logs in the Event Log Viewer for more details.
Application verbose	Indicates the number of verbose events that were generated when the test was last executed.	Number	Verbose logging provides more details in the log entry, which will enable you to troubleshoot issues better. The detailed diagnosis of this measure describes all the verbose events that were generated during the last measurement period. Please check the Application Logs in the Event Log Viewer for more details.

The filter policy for the Application Event Log- AVD test and System Event Log - AVD test typically comprises of a specific set of event sources, event IDs, and event descriptions to be monitored. This specification is expressed by the eG Enterprise system in the following format:

{Policyname}:{event_sources_to_be_included}:{event_sources_to_be_excluded}:{event_IDs_to_be_included}:{event_IDs_to_be_excluded}:{event_descriptions_to_be_included}:{event_descriptions_to_be_excluded}

On the other hand, the filter policy for the Security Log test comprises of a specific set of event sources, event ids, and users to be monitored. This specification is expressed by the eG Enterprise system in the following format:

{Policyname}:{event_sources_to_be_included}:{event_sources_to_be_excluded}:{event_IDs_to_be_included}:{event_IDs_to_be_excluded}:{users_to_be_included}:{users_to_be_excluded}

To add a new policy, do the following:

Click on the encircled '+' button present alongside the Filter list in the test configuration page of the Application Event Log test, System Event Log test, or Security Log test (see Figure 2).

Figure 2 : Figure 3. 29: Clicking on the '+' button alongside the Filter list
Figure 3 will then appear listing the policies that pre-exist.

Figure 3 : List of policies
To view the contents of a policy, click on the View button against the policy name. While a policy can be modified by clicking on the Modify button, it can be deleted using the Delete button. The default policy is all, which can only be viewed and not modified or deleted. The specification contained within this policy is: all:none:all:none:all:none.
To create a new policy, click on the Add New Policy button in Figure 3. Doing so invokes Figure 4, using which a new policy can be created.

Figure 4 : Adding a new filter policy
In Figure 4, first, provide a unique name against POLICY NAME.
To include one/more event sources for monitoring, select Included from the EVENT SOURCES drop-down list, and then specify a comma-separated list of event sources in the text box below.
To exclude specific event sources from monitoring, select Excluded from the EVENT SOURCES drop-down list, and then specify a comma-separated list of event sources to be excluded in the text box below.

Note:

At any given point in time, you can choose to either Include or Exclude event sources, but you cannot do both. If you have chosen to include event sources, then the eG Enterprise system automatically assumes that no event sources need be excluded. Accordingly, the {event_sources_to_be_excluded} section of the filter format mentioned above, will assume the value none. Similarly, if you have chosen to exclude specific event sources from monitoring, then the {event_sources_to_be_included} section of the format above will automatically take the value all, indicating that all event sources except the ones explicitly excluded, will be included for monitoring.
In the same way, select Included from the EVENT IDS list and then, provide a comma-separated list of event IDs to be monitored.
If you, on the other hand, want to exclude specific event IDs from monitoring, then first select Excluded from the EVENT IDS list box, and then provide a comma-separated list of event IDs to be excluded.

Note:

At any given point in time, you can choose to either Include or Exclude event IDs, but you cannot do both. If you have chosen to include event IDs, then the eG Enterprise system automatically assumes that no event IDs need be excluded. Accordingly, the {event_IDs_to_be_excluded} section of the filter format mentioned above, will assume the value none. Similarly, if you have chosen to exclude specific event IDs from monitoring, then the {event_IDs_to_be_included} section of the format above will automatically take the value all, indicating that all event IDs except the ones explicitly excluded, will be included for monitoring.
Likewise, select Included from the EVENT DESCRIPTIONS list and then, provide a comma-separated list of event descriptions to be monitored.
For excluding specific event descriptions from monitoring, first select Excluded from the EVENT DESCRIPTIONS list box, and then provide a comma-separated list of event descriptions to be excluded.

Note:

Instead of the complete event descriptions, wild card-embedded event description patterns can be provided as a comma-separated list in the Included or Excluded text boxes. For instance, to include all events that start with st and vi, your Included specification should be: st*,vi*. Similarly, to exclude all events with descriptions ending with ed and le, your Excluded specification should be: *ed,*le.
In case of the Security Log test however, you will not be required to include/exclude event descriptions. Instead, an event users field will appear, using which you need to configure users who need to be included/excluded from monitoring.

Note:

At any given point in time, you can choose to either Include or Exclude event descriptions/users, but you cannot do both. If you have chosen to include event descriptions/users, then the eG Enterprise system automatically assumes that no event descriptions/users need be excluded. Accordingly, the {event_descriptions_to_be_excluded} section or the {users_to_be_excluded} section (as the case may be) of the filter formats mentioned above, will assume the value none. Similarly, if you have chosen to exclude specific event descriptions/users from monitoring, then the {event_descriptions_to_be_included} section or the {users_to_be_included} section (as the case may be) of the formats above will automatically take the value all. This indicates that all event descriptions/users except the ones explicitly excluded, will be included for monitoring.
Finally, click the Update button.