Oracle Coherence Monitor User Guide

Oracle Coherence Monitor

User Guide

Using the Monitor - Alert Views
Use Alert Views displays to track and manage alerts for all Oracle Coherence nodes and caches in the cluster. Alerts are active when they are enabled and an alert database is running. Enable and disable alerts in the Alert Administration display.

Alert Detail Table
Table provides alert details in a time-ordered list of all alerts that have occurred. Manage active alerts, add comments and acknowledge alerts.
Manage Alert Detail dialog
The Manage Alert Detail dialog opens when you select an alert from the Alert Detail Table. Use this dialog to view or add comments about the alert, or to acknowledge an alert.

NOTE: Click the button to view the current display in a new window.

Alert Detail Table
Track and manage alerts for all sources (nodes and caches) that have been issued since the OC Monitor started. View details such as where the alert originated and at what time. Click the alert in the table to open the Manage Alert Detail dialog and acknowledge an alert or add comments. Alerts are color-coded to visually indicate the alert status:

Red	Critical state: The critical threshold for this alert has been exceeded.
Yellow	Warning state: The warning threshold for this alert has been exceeded.

Reduce the alert types shown using the Show Type drop-down list. Reduce the alert states shown by selecting Show Critical Alerts Only or Show Acknowledged. Sort the data by column using the button.

Cluster	Select a cluster from the drop-down list.
Connection Indicator	Color-coded icon visually indicates the data connection state between the OC Monitor and the data source.
	Green	The data source is connected.
	Red	The data source is disconnected (for example, if the Data Server is not receiving data from Oracle Coherence, or if the Display Server does not receive data from the Data Server, this indicator is red).


Show Critical Alerts Only	Select to show only critical alerts in the table (and no warning alerts). Critical alerts have a severity level of 2. By default, critical and warning alerts are shown.
Show Type	Select an alert type (also referred to as the alert name) to show in the table, or select * (asterisk) to show all alert types. The table lists all sources (which are stated in the Alert Index column) that have exceeded the warning threshold for the selected alert type. A single alert type is applied to multiple sources (nodes or caches). Therefore if you select the AvailableMemoryLowNodeSpike alert type, multiple nodes might be shown if they have exceeded the warning threshold for that alert type. If you select the CapacityLimitCache alert type, multiple caches might be shown if they have exceeded the warning threshold for that alert type. If you select * (asterisk), all alert types are shown for all nodes and caches that have exceeded the warning threshold for any alert type. By default, all alert types are shown.
Show Cleared	Select to show cleared alerts. An alert is considered cleared when the source for the alert (node or cache) returns to below the alert threshold. By default, warning and critical alerts are shown.
Show Acknowledged	Select to show acknowledged alerts. Acknowledged alerts have been manually acknowledged in the Manage Alert Detail dialog. Acknowledged alerts are automatically removed from the Current Alerts table. By default, warning and critical alerts are shown.

Critical	Total number of critical alerts, including cleared alerts. Critical alerts have a severity level of 2. An alert is considered in a critical state if the source for the alert (node or cache) exceeds the critical threshold for the alert.
Warning	Total number of warning alerts, including cleared alerts. Warning alerts have a severity level of 1. An alert is considered in a warning state if the source for the alert (node or cache) exceeds the warning threshold for the alert.
Cleared	Total number of cleared alerts. An alert is considered cleared when the source for the alert (node or cache) returns to below the alert threshold.
Acknowledged	Total number of acknowledged alerts. Acknowledged alerts have been manually acknowledged in the Manage Alert Detail dialog. Acknowledged alerts are automatically removed from the Current Alerts table.

Alerting is currently disabled		Indicates that all alerting is suspended. Alerting is enabled and disabled in the Alert Administration display.
Current Alerts	The table lists all alerts for all sources (nodes and caches) that have exceeded an alert threshold. Filter the alert types shown using the Show Type drop-down list. Filter the alert states shown by selecting Show Critical Alerts Only, Show Cleared or Show Acknowledged. Sort the data by column using the button. By default, critical and warning alerts are shown. Select an alert in the list to open the Manage Alert Detail dialog and acknowledge an alert or add comments.
	Time	The time this alert was issued.
	Cleared	The checkbox is selected if this alert has cleared. An alert is considered cleared when the source for the alert (node or cache) returns to below the alert threshold. To include acknowledged alerts in the table, select Show Cleared.
	Acknowledged	The checkbox is selected if this alert has been acknowledged. Acknowledged alerts have been manually acknowledged in the Manage Alert Detail dialog. Acknowledged alerts are automatically removed from the Current Alerts table. To include acknowledged alerts in the table, select Show Acknowledged.
	Alert Name	The alert type. Alert types contain alert threshold definitions. A single alert type applies to all nodes or caches in the cluster. For example, the AvailableMemoryLowNodeSpike alert type applies to multiple nodes, and the CapacityLimitCache alert type applies to multiple caches.
	Alert Index	The Oracle Coherence source (the cluster name if the alert is a cluster alert, otherwise the cluster name followed by the node or cache name) from which the alert originated. As with nodes, a cluster can have multiple caches. A single alert type, such as CapacityLimitCache, applies to all caches in the cluster. The Alert Index identifies the cache from which the alert originated.
	Alert Text	Descriptive information about the alert.
	ID	Unique ID for the alert.

Manage Alert Detail
The Manage Alert Detail dialog opens when you select an alert from the Alert Detail Table. Values shown in this dialog correspond to the alert selected from the Alert Detail Table. Use the Manage Alert Detail dialog to view or add comments about the alert, or to acknowledge an alert.

Name	The name of the alert.
Index	The Oracle Coherence source (the cluster name if the alert is a cluster alert, otherwise the cluster name followed by the node or cache name) from which the selected alert originated. Also the value from the Alert Index column for the source.
Timestamp	The time the alert was issued for the selected alert.
Severity	The severity of the alert. Critical alerts have a severity level of 2. Warning alerts have a severity level of 1.
Acknowledged	When checked, the alert has been manually acknowledged (by clicking Acknowledge in this dialog).
Cleared	When checked, the source for the alert (node or cache) has returned to below the alert threshold.

Alert Text	Descriptive text displayed for the alert.
Comments	Comments previously entered about the alert.
Add Comment	Enter alert-related comments in this field, then click Save.
Save	Click to add a comment in the Add Comment field.

Acknowledge	Click to acknowledge the alert. The Alert Detail Table Acknowledged column checkbox is checked when an alert is acknowledged. Acknowledged alerts are automatically removed from the Current Alerts table.
Close	Click to close the dialog.

RTView contains components licensed under the Apache License Version 2.0.

JMS, JMX and Java are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. They are mentioned in this document for identification purposes only.

SL, SL-GMS, GMS, RTView, SL Corporation, and the SL logo are trademarks or registered trademarks of Sherrill-Lubinski Corporation in the United States and other countries. Copyright © 1998-2011 Sherrill-Lubinski Corporation. All Rights Reserved.