DB2 activity exceptions, Lock exceptions | Candle-lite guide

System Status Components and Related Exceptions

Description	Code	Explanation

DDF send rate	DSND	The amount of data sent to a requestor (local) or server
		(remote) DB2 subsystem exceeds the specified threshold.

Max logmode	MCNV	The number of conversations in use exceeds the specified
conversations		threshold. When the percentage reaches 100%, the
		exception message displays the number of threads waiting
		because the preset maximum is exceeded.
		Queuing conversations can greatly increase response time.

DB2 activity exceptions

The following exceptions apply to DB2 activity alerts.

Description	Code	Explanation

Create-thread waits	THDQ	The number of users waiting for create thread processing
		exceeds the specified threshold.

Indoubt threads	INDT	The number of terminated threads that are indoubt exceeds
		the specified threshold.

Thread use %	TMAX	The percentage of active threads to the specified maximum
		exceeds the specified threshold.

Lock exceptions

The following exceptions apply to lock alerts.

Description	Code	Explanation

Resource wait time	WTRE	The amount of time a thread is waiting for a resource
		exceeds the specified threshold.

Wait for drain lock	WDLK	The amount of time a thread has been waiting for a drain
		lock exceeds the specified threshold.

Wait for drain of	WCLM	The amount of time a utility has been waiting for claims to
claims		be released after acquiring drain lock exceeds the specified
		threshold.

Global lock wait	WGLK	The amount of time a thread has been waiting for a global
		lock exceeds the specified threshold.

74 OMEGAMON II for DB2 User’s Guide: CUA Interface, Version 540

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Candle-lite manual DB2 activity exceptions, Lock exceptions, Following exceptions apply to DB2 activity alerts

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 Who should read this book Where to look for informationAbout This Book Documentation set information Introduction Printing problems?Adobe Portable Document Format Documentation Conventions REPORT=SUMMARY Histogram Background Candle Customer Service and SatisfactionCandle Customer Service and Satisfaction contacts Page Omegamon II for DB2 User’s Guide CUA Interface, Version Historical Reporter redesign New IFCID-based reports Unicode support Bit addressing supportLong name support Enclave support New Dsnzparm fields Distributed Thread display improvements Omegamon II for DB2 User’s Guide CUA Interface, Version Chapter Contents Introduction Logging on to the application Where applid is the application nameSigning On Sign On panel Fields of the Sign On Panel are defined in the table below Accessing Omegamon from OmegaviewSign On panel fields Field Description Setting Logon Options Logon Options panel fields Logical rows Number of logical rows Signing Off Returning to Omegaview from Omegamon Part Feature Description Panel FeaturesPanel features Part Feature Description Highlighted data fields Data PanelsDescription Scrolling Pushbuttons Fast pathing from the action bar Action BarSelecting from the action bar Actions pull-down GoTo pull-down View pull-down Help pull-down Options pull-downTools pull-down Available action codes Using an action codeAction Codes You can use these action codes in Omegamon Function key assignments Default function key assignments are listed belowFunction Keys Function Name Assignment Key Omegaview CUA/TSOPA1 PA2 Omegaview Help from the action bar Getting HelpHelp from a panel Help menu provides the following selections If you are Using the GlossarySearching the glossary Help function keys Customizing Omegamon Introduction To access the Preferences pop-up window Accessing the Preferences windowUsing the Preferences window Specifying Panel Preferences Action to occur Specifying Terminal Options Accessing the Terminal Options windowUsing the Terminal Options window Auto Values for SQL Description Process LevelManual Save Saving to a profile Saving Terminal OptionsSaving for current session Using the thresholds windows Setting ThresholdsAccessing the Thresholds window Follow these steps to change threshold values Saving threshold values Adding a user Accessing user authoritiesAssigning User Authorities Deleting a user Profile types Accessing profile maintenanceMaintaining Profiles Omegamon II uses three different profiles D61A$DEFAULT Copying a profile Deleting a profile Importing a ProfileExporting a Profile Modifying a profile description Switching profiles Using the Dynamic Profile Update Facility MVS Modify command for exporting a profile is as follows Example command for exporting a profileExample command for importing a profile MVS Modify command for importing a profile is as follows Using the Filter Options window Setting Filtering Options for Near-Term Thread HistoryAccessing the Filter Options window To access the Filter Options pop-up window Time Specifying Save Options for SQL Text Accessing the Save SQL Text Parameters windowUsing the Save SQL Text Parameters window Using the Callable Interface Set up the CUA options Set up the !DB/EXPLAIN options SQLID.PLANTABLE Setting Up !DB/EXPLAINSetting Up the CUA Options Step Action Log onto CUA Setting Up the D2/EXPLAIN Options Use the following procedure to set up the D2/EXPLAIN options Text and invokes the Explain function Append Use the following procedure to Explain SQLEXPLAINing SQL Code CPU % Press the Process SQL key Page Using Omegamon This chapter describes how to use Omegamon Monitored objects Monitoring from the System Status PanelDB2 subsystem components Investigating an alert Status indicatorsAlert notification Color Status Performing actions from the System Status panel Description Code Explanation System Status Components and Related ExceptionsCics exceptions Background exceptions IMS exceptionsTSO exceptions Utility exceptions Active thread exceptions Following exceptions apply to active threads Following exceptions apply to buffer pool resources Inactive thread exceptionsBuffer pool exceptions Log manager exceptions EDM pool exceptionsLock statistics exceptions DDF statistics exceptions Following exceptions apply to DB2 activity alerts DB2 activity exceptionsLock exceptions Following exceptions apply to lock alerts Active trace exceptions Volume activity exceptionsStored procedures exceptions Following exceptions apply to alerts relating to triggers Triggers exceptionsUser-defined functions exceptions Following exceptions apply to user-defined functions Exception recommendations Investigating an Active Threads AlertActive threads alert Investigating the exception condition Modifying thresholds Evaluating and Modifying ThresholdsDisplaying all exceptions Adding or modifying rules Thread activity for a reporting period Accessing near-term history dataReviewing Near-Term History Data Thread activity for a report interval Initiating a background application trace Specifying background application trace options Viewing the list of background traces Size Size of the dataset in megabytes VolumeIdentifying the dataset to which trace data is written Name of the dataset you want to create Activities you can perform in a background trace request Starting an Ifcid Trace Using the Ifcid Trace FacilityOverview Displaying Ifcid Trace Data Stopping an Ifcid Trace Page Using Omegamon II for DB2 Background about !DB/EXPLAIN for DB2 Functions provided by !DB/EXPLAIN for DB2 Assumptions Using Omegamon II and !DB/EXPLAIN Complementary FunctionsWhen to use the complementary functions 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 SAVE/EXPLAIN Required fields for the SAVE/EXPLAIN option Using the D2/EXPLAIN Options Panel PDS From the other !DB/EXPLAIN report sections that follow Press the Process SQL key Modes of operation Moving Interactively between !DB/EXPLAIN and OmegamonWhat functions can you use? What happens when you cancel the Omegamon II session? Prerequisites for real time accessProcedure to use the full function of !DB/EXPLAIN Capturing SQL from a running thread Using the Copy-and-Paste Facility in OmegamonPrerequisites to using the copy-and-paste facility Capturing SQL using the ATF Prerequisites for using the Omegamon II trace information Accessing Omegamon II Trace Information from !DB/EXPLAINDirection of access Procedure to obtain current trace information Sources of information Task You Want to Perform Source of InformationPage Panel Navigation Flowcharts Appendix Contents Element Description Flowchart ConventionsSystem Status panel System Status DB2 Workloads Panels TSO CicsIMS Workloads Panels Near-term history Cics IMS TSO 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