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Foglight for Oracle (Cartridge) 5.9.7.20 - User Guide

Inhaltsnavigation

Installing and Configuring Agents

Installing and Configuring Agents Upgrading to the Current Version Overview Running the Upgrade Wizard Migrating Agents

About Monitoring Extensions

Configuring the On Demand Port on the Agent Manager Concentrator

Installing and Monitoring a Single Oracle Instance Discovering Multiple Instances to Monitor

Loading a TNS file

Adding CRS Agents for Monitoring Clusterware

Adding Agents for Monitoring Exadata Environments

Modifying the Exadata Monitoring Settings

Adding Data Guard Environment Adding ASM Instances Configuring Multiple Instances for Monitoring using Silent Installation

Contents of the input CSV file for Oracle instances Configuring Multiple Instances for ASM Contents of the input CSV file for ASM instances

Using Foglight for Oracle

Viewing the Databases Dashboard Assigning Instances to Users Selecting an Instance to Monitor

Filtering the Display by Severity Creating User-defined Database Groups Components Shared by All Foglight for Oracle Screens Using the Currently Selected Database Group Table Viewing Data about the Exadata Cells

Foglight for Oracle Overview Dashboard

Breakdown and Baseline Chart Formats Home Page Toolbar

Overview view Advisories view SQL Performance Investigator (SQL PI)

Performance Tree Viewing Historical Metrics Blocking History Activity Highlights Viewing Change Tracking Viewing Execution Plans Comparing Performance

Oracle Activity Drilldown

Viewing the Foglight for Oracle Real-time Summary Page Reviewing Instance Usability Reviewing Cluster Usability Reviewing Locks Activity at the Cluster Level Reviewing Locks Activity at the Instance Level Locks Historical Tree Viewing Detailed Sessions Data Viewing Datafiles I/O Activity at the Cluster Level Viewing Datafiles I/O Activity at the Instance Level Viewing User-Defined Collections

Pluggable Databases Drilldown

Pluggable Databases List table Overview tab Activity within Instance/Cluster tab

Storage Drilldown

Tablespaces and Datafiles Panel Redo Logs Panel Members of Group [n] Table Fast Recovery Area Panel Archive Logs Panel Archive Log Destinations Table Invalid Objects Panel Database Backup Panel

Reviewing Configuration Settings

Reviewing SGA Settings at the RAC Level Reviewing SGA Settings at the Instance Level Reviewing the Initialization Parameters

Reviewing the Alert Log

Reviewing the Alert Log

Reviewing Monitored Data Guard Environments

Reviewing Summary Information Reviewing Performance Information Reviewing Log Shipping Status Information

Reviewing ASM Instances

Reviewing Summary Information Reviewing Parameter Information Reviewing Alert Log Information

Reviewing Exadata-related Information

Displaying Exadata-related Summarized Data Reviewing the Exadata Performance Reviewing the InfiniBand Topology

Administering Foglight for Oracle

Opening the Databases Administration Dashboard Reviewing the Administration Settings Defining Connection Details

Defining the Connection Settings for the Monitored Oracle Instances Validating Connectivity and Starting to Monitor the Instances Defining the Connection Settings for the Monitored ASM Instances

Defining Data Collection and Storage Options Customizing Alarms for Foglight for Oracle Rules

Introducing the Alarms View Setting and Modifying Alarm Sensitivity Levels Modifying Alarm Settings Configuring Email Notifications Cloning Agent Settings Reviewing Rule Definitions

Defining Retention Policies Defining the Collection Settings

Locks Top SQL Statements Tablespace Filtering Invalid Objects Filtering

Configuring the Alert Log Filtering Panel Display Configuring the List of Listeners per Instance Configuring User-defined Collections Configuring the On-demand Data Port Changing the Monitoring Mode of the RAC One Node Agents Administering SQL Performance Investigator

Generating Reports for a Foglight for Oracle RAC or Instance Studying the Various Reports

Overview of Collections

Alert Log Archive Destination Miscellaneous Archive Logs Storage ASM Diskgroups ASM Diskgroups Balance ASM Disks ASM Instance Total ASM Operations Backup Config Backup Jobs Backup Type Status Cluster Latency Cluster Misses Datafile Fragmentation Datafile IO Activity Datafiles Storage Dataguard Destination Status Dataguard Redo Apply Dataguard Status Dump File Event Wait Exadata Cell Flashcache Exadata Cell General Exadata Cell InfiniBand Exadata Cell InfiniBand Ports Exadata Cell InfiniBand Switches Exadata Cell Statistics Exadata Cell General Filesystem Disk Flashback Area History Locks Tree Instance History Locks Tree RAC Host Properties Initialization Parameters Instance General Invalid Objects Invalid Objects List IO Activity Jobs Queue Latches Activity Locks Activity Locks Breakdown Locks Instance Locks Tree Locks Tree RAC Long Running Session OS and Instance Statistics OS File System IO Summary OS General Network Summary Parallel PGA Statistics Pluggable Databases Information Pluggable Databases State Redo Archive Performance Redo Instances Miscellaneous Redo Logs Member Storage Redo Log Storage Sessions Summary Servers Tablespaces Free Space Fragmentation Tablespaces Storage Top Blocked Objects Top Sessions Top SQLs Top SQLs Full Text Top SQLs Text Total Archive Storage Total Database Storage Total Instance Waits Undo Activity Total Summary Usability

Alarm Authentication Buffer Wait Calibration Cartridge Cluster Wait CPU Usage CPU Wait Cursors DataGuard DataFlow Deadlock Disk Transfer Time Disk Utilization DiskPerf Dispatcher Drilldown External Procedures Foglight Agent Manager Foglight Management Server Host Name Host Process I/O Wait Kernel Memory Kernel Mode Kill LRU LSN Latch Wait Licensing Lock Wait Logical Reads Metric Network Wait OLTP Other Wait Paging Panel Per-Seat Licensing Per Server Licensing Physical Reads PID Privileged Mode Process Random I/O Recompile Recursive Calls Referential Integrity Relational Data Engine SQL*Net Scattered Read Schema Locks Sequential Read Severity Spinner SQL *net Threshold Transaction Unused Space User Mode

Lock Wait

Lock wait events occur when a session attempts to acquire a lock that is already held by another session. A session will be blocked until the blocking session releases the lock. Locks are designed to ensure data integrity by limiting simultaneous data access.

Multi-user database locking generally consists of two levels: exclusive locks and share locks. You want to watch out for exclusive locks (that is, TX) as they prohibit resource sharing. For example, the first transaction that exclusively locks a resource is the only one that can alter the resource (except for the DBA) until the exclusive lock is released. Share locks, unlike exclusive locks, allow a resource to be shared.

Most locking issues are application-specific and can be addressed by tuning the concurrency logic in the application.

Logical Reads

The number of data blocks read by Oracle, which were already present in the buffer cache, thereby saving input/output read operations.

This value is also referred to as session logical reads and is the total of Current Reads plus Consistent Reads.

Metric

A unit of measurement that can be applied to a database. Metrics can help gauge the performance of a system.

A metric is an individual piece of information that Foglight for Oracle collects about the performance of a system. The information may be a numeric value (a number or percentage), a string of text, or some other piece of data.

Every time the Foglight for Oracle dashboard is refreshed, the cartridge retrieves the latest value of the metric, which can then be displayed in a drilldown or on the home page.

Network Wait

Network wait events occur when a session spends time waiting for messages to be sent or received over the network interface.

Network performance, which is measured in number (per second) of packets sent and received, can be used just like disk statistics to detect overload or non-optimal performance within a network or a network interface. For more information, see SQL *net.

Excessive network wait can result from either:

•

Excessive network usage, originating in the application

•

Physical issues, identifiable by network errors and network collisions

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