Harvesting, Harvestable Data, and Harvested Data
7.1 Harvesting, Harvestable Data, and Harvested Data
Harvesting metrics is the process of gathering data that is useful for monitoring the system state and performance. Metrics are exposed to WLDF as attributes on qualified MBeans. The Harvester gathers values from selected MBean attributes at a specified sampling rate. Therefore, you can track potentially fluctuating values over time. Data must meet certain requirements in order to be harvestable, and it must meet further requirements in order to be harvested: ■ Harvestable data is data that can potentially be harvested from harvestable entities, including MBean types, instances, and attributes. To be harvestable, an MBean must be registered in the local WebLogic Server runtime MBean server. Only simple type attributes of an MBean can be harvestable. ■ Harvested data is data that is currently being harvested. To be harvested, the data must meet all the following criteria: – The data must be harvestable. – The data must be configured to be harvested. – For custom MBeans, the MBean must be currently registered with the JMX server. – The data must not throw exceptions while being harvested. The WLDFHarvesterRuntimeMBean provides the set of harvestable data and harvested data. The information returned by this MBean is a snapshot of a potentially changing state. For a description of the information about the data provided by this MBean, see the description of the 7-2 Configuring and Using the Diagnostics Framework for Oracle WebLogic Server weblogic.management.runtime.WLDFHarvesterRuntimeMBean in the Oracle WebLogic Server MBean Reference. You can use the Administration Console, the WebLogic Scripting Tool weblogic.WLST, or JMX to configure the harvester to collect and archive the metrics that the server MBeans and the custom MBeans contain.7.2 Harvesting Data from the Different Harvestable Entities
Parts
» Oracle Fusion Middleware Online Documentation Library
» What Is the WebLogic Diagnostics Framework?
» Document Scope and Audience Guide to This Document
» Data Creation, Collection, and Instrumentation Archive
» Monitoring Dashboard Diagnostics Request Performance Page
» Watch and Notification Data Accessor Diagnostic Image Capture
» How It All Fits Together About Oracle JRockit Flight Recorder
» Key Features of WLDF Integration with JRockit Flight Recorder
» JFR Graphical User Interface
» Displaying Event Data for a Product Subcomponent Viewing the Event Log to Display Details
» Tracking Execution Flow by Analyzing an Operative Set
» Changing the Location of Temporary JFR Files
» Obtaining the JRockit Flight Recording File Configuration MBeans and XML
» Tools for Configuring WLDF Configuring Diagnostic Image Capture and Diagnostic Archives
» The DIAG_MODULE.xml Resource Descriptor Configuration Managing Diagnostic System Modules
» WLDF Configuration MBeans and Their Mappings to XML Elements
» Configuring WLDF Diagnostic Volume WLST Commands for Generating an Image Capture
» Creating WLDF Tables in the Database
» Harvesting, Harvestable Data, and Harvested Data
» Configuring the Harvester Sampling Period Configuring the Types of Data to Harvest
» Sample Configurations for Different Harvestable Types
» Harvesting Data from the Different Harvestable Entities Watches and Notifications
» Sample Watch and Notification Configuration
» Types of Watches Configuration Options Shared by All Types of Watches
» Configuring Harvester Watches Oracle Fusion Middleware Online Documentation Library
» Configuring Log Watches Configuring Instrumentation Watches
» Defining Watch Rule Expressions Types of Notifications
» Configuring JMX Notifications Configuring JMS Notifications
» Configuring SNMP Notifications Oracle Fusion Middleware Online Documentation Library
» Configuring SMTP Notifications Configuring Image Notifications
» Instrumentation Scope Configuration and Deployment Joinpoints, Pointcuts, and Diagnostic Locations
» Diagnostic Monitor Types Concepts and Terminology
» Instrumentation Configuration Files Oracle Fusion Middleware Online Documentation Library
» Instrumentation XML Elements XML Elements Used for Instrumentation
» wldf-instrumentation-monitor XML Elements XML Elements Used for Instrumentation
» Configuring Server-Scoped Instrumentation Oracle Fusion Middleware Online Documentation Library
» Comparing System-Scoped to Application-Scoped Instrumentation
» Defining Pointcuts for Custom Monitors
» Creating Request Performance Data
» Context Life Cycle and the Context ID Dyes, Dye Flags, and Dye Vectors
» Dyes Supported by the DyeInjection Monitor PROTOCOL Dye Flags
» THROTTLE Dye Flag When Diagnostic Contexts Are Created
» Configuring Delegating Monitors to Use Dye Filtering
» Dye Filtering Example How Dye Masks Filter Requests to Pass to Monitors
» Configuring the THROTTLE Dye
» How Throttling is Handled by Delegating and Custom Monitors
» Using weblogic.diagnostics.context
» Data Stores Accessed by the Data Accessor Accessing Diagnostic Data Offline
» Accessing Diagnostic Data Programmatically
» Using Deployment Plans to Dynamically Control Instrumentation Configuration
» Using a Deployment Plan: Overview Creating a Deployment Plan Using weblogic.PlanGenerator
» Sample Deployment Plan for Diagnostics
» View List About the Monitoring Dashboard Interface
» Metric Browser About the Monitoring Dashboard Interface
» Current Time Range Charts Custom Time Range Charts
» Sequence in which Metrics Data is Displayed
» Notes about Metric Data Retention
» How WLDF Generates and Retrieves Data Mapping WLDF Components to Beans and Packages
» Configuration APIs Configuration and Runtime APIs
» Runtime APIs Configuration and Runtime APIs
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