Download - BC420_46C - 014Background Processing

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Scheduling jobs

Using the job overview

Using parallel BI processing through RSBDCSUB

Background Processing

Contents:

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Course "verview Diagra#

Daten$bernah#e

D% &orkbench

'S( &orkbench

Principles o) Standard

Data *ans)er

DirectInput

B+PI

*+R

ecorder

Course "verview

Batch

Input

Call*ransaction

,

-DI

Basics

.

/

1 206

20

3

22

2,

2!

22

2!

2

! 22

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Background Processing 4 Contents 526

Basics o) Background ProcessingBasics o) Background Processing

Per)or#ance and Scheduling BI SessionsPer)or#ance and Scheduling BI Sessions

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7ob

Scheduled

5*i#e 8 Date6

-9ecuted on

background serverDispatcher

B B

Step 2

Step n

Step 1

. . .

Program 1Program 2

Program 3

Concept o) Background Processing

R/3 background processing is used to automate routine tasks and optimize the use of the R/3

resources within a company. You or your users schedule programs to be run by the R/3 System and

specify which programs to execute and when.

The R/3 System proides comprehensie support for background processing including a number of

methods for scheduling and maintaining !obs. You can execute both internal R/3 and external

programs. To simplify scheduling" you can execute related internal and external !obs as #!ob steps$

within one background processing !ob. %sing !ob steps" you can define a complex background !ob

that includes seeral processing steps. &ob scheduling includes all process actiities re'uired to

execute the task.

(n addition" there are arious !ob administration and diagnostic tools" including a graphical monitor.There is a powerful" easy)to)use programming interface you can use to program your own

applications for background processing" if needed* you can use the !ob wizard to schedule your !obs.

The wizard automates the basic definition of the background processing !ob and guides new users

through the entire process.

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Create progra# variant

De)ine job na#e and priorit

Create step list 5enter progra#s6

De)ine job start ti#e

Displa job logs

7ob runs

Step 2

Step !

Step 2

Step !

Step 2

Step !

Background Processing Steps

To create a background processing !ob" proceed as follows+

,- (f the program to be scheduled contains a selection screen" create a ariant.

- (n the !ob definition" you must specify the !ob name and priority.

ptional+ Target serer

3- The step list contains all programs to be se'uentially processed within a !ob.

0- You must set the start time for the !ob.

1- 2hen the start time is reached" the !ob is processed in a free background work process.

- You can then display the !ob logs.

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BC!0


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BI


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After you create and sa!e the steps$ the step list appears.'

+o,

*o add additional steps@ choose(reateA to leave the step list@ choose Bac)

* +, &nitial screen-.

Pro)ra( na(e ,,, &'t, pr) ist Para(eters

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Scheduled start

Do not start a/ter

((ed,

/ou ha!e se!eral options for job start date and time.0

Date i(e A/ter o!

Date 8 *i#e

Sa!e

7ob is now scheduled I#portant: Choose Sa!e

on the initial screen o) transaction S(,;

A/ter eent , , ,

Date

Date

i(e

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Step 2

7ob: BC!0


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BC!07ob na#e

Job o!er!ie#transaction 5S(,/6

User na#e

Sched, eleased ead6 Actie 7inished Canceled

2*,0.,1999 to7ro(

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or start a/ter eent

7ob start conditions

7ob status

Step 2

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+)ter speci)ing the selection para#eters@ the selected jobs appear

7ob na#e Created b Status Start date

BC!01?

;inished+ &ob completed without errors

7anceled+ &ob ended* =rrors occurred.

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Background Processing 4 Contents 5!6

Basics o) Background ProcessingBasics o) Background Processing

Per)or#ance and Scheduling BI SessionsPer)or#ance and Scheduling BI Sessions

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SeHuential

ile

enerate se!eral sessions

Dispatcher

B B

Dispatcher

B B

Dispatcher

B

ScheduleRSBDCSUB

Process B& sessions in se!eral bac)ground 3Ps in parallel.

BI Progra#

Parallel Processing with RSBDCSUB

You can process 8( sessions in parallel in the background using the program RS8@7S%8. (f seeral

8( sessions were generated from the external data" RS8@7S%8 schedules a separate !ob for each 8(

session.

n the selection screen of RS8@7S%8" you specify the names of the 8( sessions you want to

process 4generic entry possible+ Abc0?


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+B+P Develop#ent+B+P Develop#ent

SaveSave

Progra# RSBDCSUB

Create background job

with S*-P: RSBDCSUB

Create background job

with S*-P: RSBDCSUB

Session na#eCreated on)ro#


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Job #ith t#o steps

Step !: RSBDCSUB

Step 2: BI Progra#

&n the first step$ the se4uential data isread and then B& sessions aregenerated from this data.

&n the second step$ the B& sessions arescheduled by the 5SBD(S6B to runin parallel and then processed bythe bac)ground #or) processes.

7obs

The external data conersion and import of the data into the R/3 System can be automatically

scheduled through background processing.

This re'uires two program steps+

,- (n Step ," the 8( program is called that reads the external data and conerts the data. 8( sessions

are then created.

- (n steps " RS8@7S%8 is called and transfers the generated 8( sessions to background

processing.

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5SBD(S6B creates a job for each B& session #ith the job name identical to

the B& session name.

o! o)7he job log contains the results of the

B& runs.

7ob na#e Created b Status Start date

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+pplication

Presentation

Database

READ DATASET

TRANSFER

'ocal seHuential

)iles

SeHuential

)iles

rontend +ccess in Background

Dispatcher

B

The A@2:C5@A and A%9C5@A function modules are designed for online operation and

cannot be executed in the background.

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Schedule and ad#inister jobs

Use RSBDCSUB to schedule batch input sessions

in the background

Gou are now able to:

Background Processing: Unit Su##ar

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Exercises

Unit: Background Processing

Topic: Scheduling of Batch Input in the Background

Scheduling of batch input sessions in the background.

9arallel processing of the processing

The transfer of the legacy data should be automated. This is done by

scheduling a specific 5859 program 4RS8@7S%8- ia the R/3

background processing. There are different possibilities for performingthe scheduling.

Job: BC!"#$$#Job

, Optional:Start a !ob consisting of one step using @ate/Time.

,), @efine a ariant for the program S59870?DS9T@DC(STD7E=7F8G=S.

,) 7reate the !ob 870?&8HH),. Start this !ob using @ate/Time. You can enter

AStart nowA or the system time I 3 minutes. The only step the !ob should contain

is the 5859 report.

,)3 ;ollow the flow of the !ob in the S>3J and analyze the !ob log.

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@efine and schedule a !ob to generate and run batch input sessions. @efine one !ob

#870?DHHD&ob$ that performs the follwing tasks in two steps+

a- Run a program to generate one or more batch input sessions. 8efore you start"

generate a ariant for the scheduled batch input program.

b- 7all the RS8@7S%8 to schedule the batch input session that has been created in the

preious step. You must also first create a ariant for RS8@7S%8.

Steps+

), 7reate the ariant K5RDHH for the program R;8(8C??. >aintain the

) ;ile name 6 ...... 4;ile name see outbound file respectiely conerted data in

the CS>2 ob!ect 7T)HH-.

) Type of data transfer is batch input

) 7reate a ariant for the RS8@7S%8. This ariant should process the batch input

sessions 7T)HH. 4This session name is from the CS>2 outbound file and

corresponds to the ob!ect name-.

)3 Schedule a !ob consisting of two steps+ The first step contains your batch input

program R;8(8C??" the second step contains RS8@7S%8. The ariants you

defined before are necessary for both steps.

)0 (n order to run 8( sessions" follow the flow of the !ob and check the !ob log for

each !ob that has been created by the RS8@7S%8.

3 Optional+ Lenerating seeral 8( sessions by changing an CS>2 setting and scheduling

the CS>2 main program.

3), @isplay all ob!ects for your pro!ect. Select the ob!ect 7T)HH and copy it to the

new ob!ect 8()HH.

3) >ake the following changes in the =:@D;DR=7R@ of structure 8LR??. The

field g_cnt_transactions_group determines the number of records

according to which the next 8( session is generated. 7hange this alue to .

at_first_transfer_record.

if g_cnt_transactions_group = 2.

g_cnt_transactions_group = 0.

transfer_record.

endif.

3)3 (n the ob!ect attributes set the data transfer toperiodic.

Then you get the main program/SAP!C/SAP"#S!$"%&T'R(AC')which will

perform the steps of the CS>2 automatically.

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3)0 7reate the ariant Kar)HH for this main program.

Settings+

9ro!ect+ 870?)HH

Sub)pro!ect+ @7%)HH

b!ect+ 8()HH

Set the parameters of some batch input/direct input programs#8(" @(" 7all Transaction$ to #8$.

3)1 Schedule a !ob that consists of one step and that contains the main program with

the ariant K5R)HH. Start the !ob.

3) ;ollow the the !ob flow and check the !ob log.

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Solutions

Unit: Background Processing

Solution to %&!

3 ptional+ 7reate seeral 8( sessions by changing an CS>2 setting and scheduling the

CS>2 main program.

3) Lo to =xtras )M @isplay ariant and set the ATechnical fieldA and A9rocessing

eentsA checkboxes to change a technical CS>2 field mapping setting. A7odingA

and ALlobal data definitionsA should also be selected.

The processing eent A=:@ ; R=7R@A is below the structure 8LR?? and

determines how many transactions a new 8( session processes with a counter.

7hange the test Aif g_cnt_transactions_group = 5000" to Aif

g_cnt_transactions_group = 3"to create a new 8( session after

reading three records.