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Foglight for Oracle (Cartridge) 5.9.2.1 - User Guide

Installing and Configuring Agents Using Foglight for Oracle
Viewing the Databases Dashboard Assigning Instances to Users Selecting an Instance to Monitor Foglight for Oracle Overview Dashboard Overview view Advisories view SQL Performance Investigator (SQL PI) Oracle Activity Drilldown Pluggable Databases Drilldown Storage Drilldown Reviewing Configuration Settings Reviewing the Alert Log Reviewing Monitored Data Guard Environments Reviewing ASM Instances Reviewing Exadata-related Information
Administering Foglight for Oracle Reporting Reference Glossary

Reviewing Instance Usability

The Instance Usability panel displays aggregated information regarding the instance’s usability and availability.

This panel supports the following tasks:

The Instance pane contains the following indicators:

The Alarms pane displays the usability-related outstanding alarms. These alarms alert the following issues per instance: response time, instance availability, instance connection availability, OS connection availability, instance connection time, and Listener status.

The Instance Availability section displays the instance availability in percentages, plotted over the time range. If the instance was unavailable once or more during this time, the relevant message describing the last occurrence of unavailability appears in the Error Message box.

The Listener Availability section displays the availability of all listeners configured for the instance, in percentages, plotted over the time range. If one or more of the listeners were unavailable during this time, a message describing this issue appears under the Listener Errors section.

The Connection Time section displays the instance’s connection time, in seconds, plotted over the time range.

The Response Time section displays the instance’s response time, in milliseconds, plotted over the time range.

Reviewing Cluster Usability

Use the Cluster Usability panel to compare between the various RAC nodes, regarding the following indicators:

To investigate a single instance, select the requested instance from the list at the top of the panel. The display switches to instance usability. For details, see Reviewing Instance Usability .

Reviewing Locks Activity at the Cluster Level

The Activity Locks panel for a RAC comprises the following panes:

The Locks Activity pane displays a breakdown of all lock types and their general properties.

The Lock Tree (Current) pane displays current data, which is available only in real-time mode.

Clicking any locking or locked session table row displays a popup that is used for viewing further details. For information see Session Details Popup .

PDB

In multitenant architectures, the name of the pluggable database where the lock took place.

Session

The identifier for a session that holds or acquires the lock.

Serial

The session’s serial number. The combination of SID and serial number provides a unique identification of the session.

DB User

The database user name.

Object Wanted

The object requested for lock.

Lock Type

The type of user or system lock.

The locks on the user types are obtained by user applications. Any process that is blocking others is likely to be holding one of these locks. The user type locks are:

Lock Mode

The lock mode in which the session holds the lock. This row can have one of the following values:

Lock Request Mode

The lock mode in which the process requests the lock. This row can have one of the values listed below.

Lock Duration

The duration of the lock in seconds.

Cross Instance

Defines whether the lock is between different cluster nodes:

Instance

The name of the instance to which the blocking or blocked session belongs.

Kill Session

Used for terminating the selected session, by means of the Kill Session dialog box that is displayed upon clicking this column.

 

The Locks Historical Tree pane displays the overall locks activity that took place within the selected time range, as well as locks that exceeded a predefined threshold.

This pane comprises the following sections:

Reviewing Locks Activity at the Instance Level

The Activity Locks panel, which displays lock summary information for an Oracle instance, comprises the following panes:

관련 문서
Foglight for Oracle (Cartridge) - 5.9.2.1
Deployment Guide
Release Notes
User Guide
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