Active trace exceptions | Candle-lite DB2 manual

System Status Components and Related Exceptions

Active trace exceptions

The following exceptions apply to active trace alerts.

Description	Code	Explanation

DB2 global trace	GTRC	The DB2 global trace is active. It should not be active unless
active		there is a specific purpose, such as diagnostic testing. The
		DB2 global trace can increase performance overhead.

Volume activity exceptions

The following exceptions apply to volume activity alerts.

Description	Code	Explanation

Volume DB2 I/O rate	VDIO	A DB2 I/O rate per second for the volume exceeded the
		specified threshold.

Volume extents per	VEDR	The dataset-to-dataset extent ratio of a volume exceeded
DSN		the specified threshold.

Volume service time	VSRV	The service time for the volume exceeded the specified
		threshold. The threshold is expressed in milliseconds and
		must be an integer between 0–9999.

Volume TL I/O rate	VTIO	The total I/O rate per second for the volume exceeded the
		specified threshold. The threshold is the total number of
		I/Os per second and must be an integer between 0–9999.

Volume utilization	VUTL	The utilization percentage for the volume exceeded the
		specified threshold. The threshold is a percentage and must
		be an integer between 0–100.

Stored procedures exceptions

The following exceptions apply to stored procedures alerts.

Description	Code	Explanation

ASIDs executing	SPAC	Indicates that the number of ASIDs executing stored
stored procedures		procedures exceeds the threshold. The threshold is
		expressed as a count of address spaces capable of executing
		stored procedures. It can be an integer from 0 to 99. Stored
		procedures can be executed in a DB2 stored procedure
		address space and in any WLM-managed stored procedure
		address space. SPAC is a member of the DB2 system (SY)
		group. The default threshold is 3 and the default state is On.

Using OMEGAMON II

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Candle-lite DB2 manual Active trace exceptions, Volume activity exceptions, Stored procedures exceptions

Contents

User’s Guide CUA Interface Omegamon II for DB2 User’s Guide CUA Interface, Version Contents Index 129 List of Figures Omegamon II for DB2 User’s Guide CUA Interface, Version Preface Documentation set information Where to look for informationAbout This Book Who should read this book Printing problems? Adobe Portable Document FormatIntroduction Documentation Conventions REPORT=SUMMARY Histogram Candle Customer Service and Satisfaction Candle Customer Service and Satisfaction contactsBackground Page Omegamon II for DB2 User’s Guide CUA Interface, Version New IFCID-based reports Historical Reporter redesign Enclave support Bit addressing supportLong name support Unicode support Distributed Thread display improvements New Dsnzparm fields Omegamon II for DB2 User’s Guide CUA Interface, Version Introduction Chapter Contents Sign On panel Where applid is the application nameSigning On Logging on to the application Field Description Accessing Omegamon from OmegaviewSign On panel fields Fields of the Sign On Panel are defined in the table below Logon Options panel fields Setting Logon Options Logical rows Number of logical rows Returning to Omegaview from Omegamon Signing Off Panel Features Panel featuresPart Feature Description Part Feature Description Scrolling Data PanelsDescription Highlighted data fields Pushbuttons Action Bar Selecting from the action barFast pathing from the action bar Actions pull-down View pull-down GoTo pull-down Options pull-down Tools pull-downHelp pull-down You can use these action codes in Omegamon Using an action codeAction Codes Available action codes Function Name Assignment Key Default function key assignments are listed belowFunction Keys Function key assignments PA2 Omegaview CUA/TSOPA1 Omegaview Help menu provides the following selections Getting HelpHelp from a panel Help from the action bar Using the Glossary Searching the glossaryIf you are Help function keys Customizing Omegamon Introduction Specifying Panel Preferences Accessing the Preferences windowUsing the Preferences window To access the Preferences pop-up window Action to occur Accessing the Terminal Options window Using the Terminal Options windowSpecifying Terminal Options Save Values for SQL Description Process LevelManual Auto Saving Terminal Options Saving for current sessionSaving to a profile Follow these steps to change threshold values Setting ThresholdsAccessing the Thresholds window Using the thresholds windows Saving threshold values Deleting a user Accessing user authoritiesAssigning User Authorities Adding a user Omegamon II uses three different profiles Accessing profile maintenanceMaintaining Profiles Profile types Copying a profile D61A$DEFAULT Modifying a profile description Importing a ProfileExporting a Profile Deleting a profile Using the Dynamic Profile Update Facility Switching profiles MVS Modify command for importing a profile is as follows Example command for exporting a profileExample command for importing a profile MVS Modify command for exporting a profile is as follows To access the Filter Options pop-up window Setting Filtering Options for Near-Term Thread HistoryAccessing the Filter Options window Using the Filter Options window Time Accessing the Save SQL Text Parameters window Using the Save SQL Text Parameters windowSpecifying Save Options for SQL Text Set up the CUA options Set up the !DB/EXPLAIN options Using the Callable Interface Step Action Log onto CUA Setting Up !DB/EXPLAINSetting Up the CUA Options SQLID.PLANTABLE Use the following procedure to set up the D2/EXPLAIN options Setting Up the D2/EXPLAIN Options Text and invokes the Explain function Use the following procedure to Explain SQL EXPLAINing SQL CodeAppend CPU % Press the Process SQL key Page This chapter describes how to use Omegamon Using Omegamon Monitoring from the System Status Panel DB2 subsystem componentsMonitored objects Color Status Status indicatorsAlert notification Investigating an alert Performing actions from the System Status panel System Status Components and Related Exceptions Cics exceptionsDescription Code Explanation Utility exceptions IMS exceptionsTSO exceptions Background exceptions Following exceptions apply to active threads Active thread exceptions Inactive thread exceptions Buffer pool exceptionsFollowing exceptions apply to buffer pool resources DDF statistics exceptions EDM pool exceptionsLock statistics exceptions Log manager exceptions Following exceptions apply to lock alerts DB2 activity exceptionsLock exceptions Following exceptions apply to DB2 activity alerts Volume activity exceptions Stored procedures exceptionsActive trace exceptions Following exceptions apply to user-defined functions Triggers exceptionsUser-defined functions exceptions Following exceptions apply to alerts relating to triggers Investigating the exception condition Investigating an Active Threads AlertActive threads alert Exception recommendations Evaluating and Modifying Thresholds Displaying all exceptionsModifying thresholds Adding or modifying rules Accessing near-term history data Reviewing Near-Term History DataThread activity for a reporting period Thread activity for a report interval Specifying background application trace options Initiating a background application trace Name of the dataset you want to create Size Size of the dataset in megabytes VolumeIdentifying the dataset to which trace data is written Viewing the list of background traces Activities you can perform in a background trace request Using the Ifcid Trace Facility OverviewStarting an Ifcid Trace Displaying Ifcid Trace Data Stopping an Ifcid Trace Page Using Omegamon II for DB2 Functions provided by !DB/EXPLAIN for DB2 Background about !DB/EXPLAIN for DB2 Using Omegamon II and !DB/EXPLAIN Complementary Functions When to use the complementary functionsAssumptions Using Omegamon II and !DB/EXPLAIN Complementary Functions Using the Omegamon II for DB2 Callable Interface Testc Current Sqlid is determined by the DB2 security exit Fields for Terminal Description Options SQL Text ATF. You can access the SQL Text panel through Required fields for the SAVE/EXPLAIN option SAVE/EXPLAIN PDS Using the D2/EXPLAIN Options Panel From the other !DB/EXPLAIN report sections that follow Press the Process SQL key Moving Interactively between !DB/EXPLAIN and Omegamon What functions can you use?Modes of operation Prerequisites for real time access Procedure to use the full function of !DB/EXPLAINWhat happens when you cancel the Omegamon II session? Using the Copy-and-Paste Facility in Omegamon Prerequisites to using the copy-and-paste facilityCapturing SQL from a running thread Capturing SQL using the ATF Procedure to obtain current trace information Accessing Omegamon II Trace Information from !DB/EXPLAINDirection of access Prerequisites for using the Omegamon II trace information Task You Want to Perform Source of Information Sources of informationPage Appendix Contents Panel Navigation Flowcharts Flowchart Conventions System Status panelElement Description DB2 System Status Workloads Panels Cics IMSTSO Cics IMS TSO Workloads Panels Near-term history Resources Panels Resources Panels Realtime Resources Panels Near-Term History Alerts Panels Alerts Panels Installation Parameters Panels Installation Parameters Panels Application Trace Facility Panels Application Trace Facility Panels Object Analysis Panels Object Analysis Panels Thread Detail GoTo Panels Thread Detail GoTo Panels Realtime Thread History Detail GoTo Panels Near-Term History Index Omegamon II for DB2 User’s Guide CUA Interface, Version 131 Omegamon II for DB2 User’s Guide CUA Interface, Version