Alerts in Splunk are actions that are triggered when a user-defined criterion is satisfied. Alerts can be used to log an action, send an email, or output a result to a lookup file, among other things.
In this overview section, we are going to discuss how to begin with alerts, what is workflow alerting and other topics.
Alerts can be used to keep track of and respond to certain events. Alerts seek for events in real-time or on a schedule using a saved search. When search results meet certain criteria, alerts are triggered. When alerts are triggered, you can utilize alert actions to reply.
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Information, instructions, and scenarios for using alerts and alert actions are included in this resource. See The alerting workflow to get started learning about alerts. Examine the alerting choices in the Alert types section.
Alerts are made up of a saved search, type and trigger condition customizations, and alert actions. Here are some specifics on how the various components of an alert interact.
Search: What exactly are you looking for to track?
Begin by looking up the events you'd like to keep track of. Make a note of the search and save it as an alert.
Alert type: How frequently do you want to check for upcoming events?
The alert checks for events using the saved search. To choose how often the search runs, change the alert type. To monitor for events on a regular basis, set up a scheduled alert. You can also utilize a real-time alert to continuously check for events.
Throttling and alert triggers: How frequently do you want an alert to be triggered?
An alert does not have to be triggered every time search results are generated. To control when the alert goes off, set trigger conditions. You can also throttle an alert to regulate how quickly the following one fires after the first one.
Alert Action: When the alert is triggered, what happens?
When an alert is triggered, one or more alert actions can be initiated. An alert action can help you start responding to a triggered alert by notifying you about it. You can customize the frequency and type of alert actions.
In this section, we will be discussing different types of alerts and various triggering scenarios. Let's understand what the alert types are.
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Types of Alert
Scheduled and real-time alerts are the two types. The definitions of alert types are dependent on the alert search timing. The timing, triggering, and other characteristics of either alert type can be customized depending on the scenario.
Using a scheduled alert, you can check for events on a regular basis and see if they meet certain criteria. If immediate or real-time monitoring is not a priority, a scheduled alert can be useful.
Real-time alerts are always looking for occurrences. They can be valuable in situations that require immediate monitoring and response. Real-time alerts could be set to fire once per result or only if particular criteria are met within a specific rolling time span.
A "per-result alert" is a real-time alert that is triggered by a per-result triggering condition. Use this alert type and triggering to look for events in real time and receive notifications when they happen.
Here are some examples of how to use a per-result triggered real-time alert.
Rolling time window triggering
A "rolling window alert" is a real-time alert that triggers based on a rolling time window. When a specified time window is a key aspect of the event pattern you're monitoring in real time, this alert type and triggering are useful.
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Here are a few examples of how to use a real-time alert with a rolling time window.
This section covers the topics of creating the alerts. We will begin with scheduling benefits, creating scheduling, features of scheduling, creating alerts, options in alerts.
Setting up a trigger to execute the report automatically without the user's intervention is known as scheduling. The following are some of the benefits of scheduling a report:
The schedule feature of the report is used to build a schedule. As indicated in the image below, we navigate to the Edit Schedule option on the Edit button.
The following screen appears when we click the edit schedule button, and it lists all of the options for making the schedule.
We'll use all of the default choices in the example below, and the report will run every week at 6 a.m. on Monday.
The following are some of the most significant aspects of scheduling:
After the report has been run, the scheduled actions are supposed to take some action. For instance, you might want to send an email with the report's run status or run another script. These actions can be performed by selecting the option and clicking the Add Actions button, as illustrated below.
A search query is used to create an alert, and the result is stored as an alert. We use the Save As an option to save the result of the search for day-wise file count in the screenshot below.
The alert properties are configured in the next screenshot. The configuration screen is shown in the image below.
Each of these options has a purpose and a set of choices that are discussed below.
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In this blog you have learned about the concepts of using alerts in splunk in detail. We hope this blog is very useful in helped you in mastering the triggers to generate alerts.
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