Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved


Chapter 2 About TIBCO Hawk Agents : Alert Messages

Alert Messages
Alerts are messages an agent sends to TIBCO Hawk Console when a specified condition occurs. Alerts originate from rulebases that enforce your monitoring logic. In TIBCO Hawk Console, the colors of each agent and container icon summarize alert levels, and the Alert Display window shows alert details for a particular agent or all agents.
Suspend Alert Messages
You can temporarily suspend an alert message, to prevent it from interfering with other monitoring tasks. For example, if a condition such as process failure is generating a high-level alert with a warning bell and the problem is being worked on, you can suspend the alert until the problem is resolved. Suspension details are added to the properties of the message. These details are visible to you and other TIBCO Hawk Console users, as well as all Console API applications.
Suspending an alert message affects only the action that generated the alert. If the condition that generates the alert message also generates another type of action, such as attempting to restart the process that action is unaffected.
Alert suspension is lifted either when the suspension interval ends or when a user invokes the resumeSuspendedAlerts method of the RuleBaseEngine microagent. For more information on microagent methods, see the TIBCO Hawk Microagent Reference.
Clear Alert Messages
Alerts are cleared when the alert condition, as defined by the rulebase, ceases to exist. Alerts generated by tests on synchronous data sources, which deliver data at fixed intervals, are cleared by default at the first test repetition when the condition no longer holds. Alerts generated by tests on asynchronous data sources, which deliver data when it becomes available, are cleared by default when the test does not evaluate to true for 15 minutes. You can modify this default behavior using advanced test and action properties in the rule. For more information, see the TIBCO Hawk Console User’s Guide.
When you create an action that creates an alert, you may find it useful to include text that describes how the alert is cleared. For example, if an alert is raised when free disk space falls below 10% and is cleared only when disk space is above 15%, the alert text could be: "Free disk space is 11.6%; this alert will be cleared when the free disk space exceeds 15%. "
Active alerts are kept until cleared, and cleared alerts are purged by TIBCO Hawk Console when a buffer limit is reached. To view purged alerts, you can examine Event Service data files (if configured), where all alerts are written as they are raised and cleared. For more information on the TIBCO Hawk Event Service, see the TIBCO Hawk Installation, Configuration, and Administration Guide.
 

Copyright © TIBCO Software Inc. All Rights Reserved
Copyright © TIBCO Software Inc. All Rights Reserved