search cancel

How to determine what job is creating high volume of DSCLOSE events that are passed to CA Scheduler?

book

Article ID: 141916

calendar_today

Updated On:

Products

Scheduler Job Management

Issue/Introduction

CA ENF DSCLOSE event occurs when an SMF 15 record is generated when a data set is created.  DSCLOSE events are used in CA Scheduler as data set dependencies before a JOB/SCHEDULE is released.   A high volume of DSCLOSE can impact CA Scheduler performance.   How to determine what job is generating a high volume of DSCLOSE and exclude these events from CA ENF?

Environment

Release : 11.0

Component : SCHDMS

Resolution

Run the CAISUPT trace 3 to display the CA ENF diagnostic messages.

To turn on the trace: 

From the CA Scheduler ISPF Free Form Command menu,  
enter "CAISUPT SET=03".    

Let the trace run for 1 minute and then reset the trace.                                           
                                                                       
To reset the trace: 

From the CA Scheduler ISPF Free Form Command menu,    
enter "CAISUPT RESET=03".                                              

 

Review the CA Scheduler started task for the trace output what is causing the high volume of DSCLOSE.

Use the CA ENF SCREEN command,  F ENF,SCREEN(DSCLOSE,ACCESS,EQ,INPUT)  to dynamically add the SCREEN command throw away the DSCLOSE event if the data set is opened for input.  Or for a particular dataset, F ENF,SCREEN(DSCLOSE,EQ,dsn.name).