Parallel Processing Error

Hi Gurus,
While running MRP at Plant level (MD01), System throws error as
" Check the destinations for parallel MRP" in Quality Server.
As we have done same setting in DEV & it's allowing to Run MRP.
Give comment on it.
Thanx in Advance.

Hi..,
go to SPRO>material management>Consumption based planning-->Define parallel processing in MRP.
their give the name and no. of sessions like 4 or 5.
your problem will be solved.
regards.

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Hi Lijo,
I got the following information from the function module documentation of the FM RSDRI_INFOPROV_READ.
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Prathish.

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While executing the EG88 tranasction for periodic replacement of list, I am getting a runtime error. In ST22, it describes that, transaction tried to call the function EGTUR but it is not found or not defined.
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The solution to your problem is explained in,
SAP Note 537391 - Parallel processing during periodic replacement
Regards
Juan

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Hello gurus,
I am using Call txn method (MM01) Parallel Processing method ( around 9 threads ). The Materials are getting locked around 10 percent sometimes.
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Thank you in advance..
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Hi Narsingh,
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hI,
Execute the Query in RSRT with Execute and Debug option.
Select SQL statements toknow where exactly it's taking time.
Let us know the details once you done.
Reg
Pra

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Ramon
Apply note 1115456.
Maybe that note can help you
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https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/sapnotes/index2.htm?numm=1230721
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Hi,
Thanks a lot for your reply, Prateek.
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I am facing issue with Exclusive Gateway in Parallel Process.
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Hi,
I am trying to implement parallel processing and am facing a problem where in the Function Module contains the statement :
submit (iv_repid) to sap-spool
                    with selection-table it_rspar_tmp
                    spool parameters iv_print_parameters
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                    number iv_number
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CALL FUNCTION 'YFM_OTC_ZSD_ORDER'
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Thanks.

I need the output of a report to be generated in the spool and then I am retreiving it later on from the spool and displaying ti along with another ALV in my current program.
I have called the Job Open and Job Close function modules. Between these 2 FM calls, I have written the code for the parallel processing.
CALL FUNCTION 'YFM_OTC_ZSD_ORDER'
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    DESTINATION 'NONE'
    PERFORMING receive_results ON END OF TASK
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      iv_name               = v_name
      iv_number             = v_number
    TABLES
      it_rspar_tmp          = t_rspar_tmp[]
    EXCEPTIONS
      communication_failure = 1
      OTHERS                = 2.
After this, I retrieve the data from Function Module : RSPO_RETURN_SPOOLJOB.
All the above steps work while I am in debugging mode.At the RFC call, it opens a new session and i execute the session completely, return to the main program execution, and then execute to the end , and I get the desired output.
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Thanks !!

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Dear François Henrotte,
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Hi All,
I am processing 1 million of records in background, which takes approximately around 10 hrs. I wanted to reduce the time to less than 1 hr and tried using parallel processing. But the tasks run in Dialog workprocesses and giving abap short dumps due to time out.
Is there any other solutions using that i can reduce total processing time.
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Thanks,
Rajesh.

Hi Rajesh,
Refer sample code for Parallel Processing:
By doing this your processing time will be highly optimized.
Go thru the description given in the code at each level.
This code Checks available WORK PROCESSes and assigns data in packets for processing. This way you save a lot of time esp when data is in Millions.
Hope it helps.
REPORT PARAJOB.
Data declarations
DATA: GROUP LIKE RZLLITAB-CLASSNAME VALUE ' ',
"Parallel processing group.
"SPACE = group default (all
"servers)
WP_AVAILABLE TYPE I, "Number of dialog work processes
"available for parallel processing
"(free work processes)
WP_TOTAL TYPE I, "Total number of dialog work
"processes in the group
MSG(80) VALUE SPACE, "Container for error message in
"case of remote RFC exception.
INFO LIKE RFCSI, C, "Message text
JOBS TYPE I VALUE 10, "Number of parallel jobs
SND_JOBS TYPE I VALUE 1, "Work packets sent for processing
RCV_JOBS TYPE I VALUE 1, "Work packet replies received
EXCP_FLAG(1) TYPE C, "Number of RESOURCE_FAILUREs
TASKNAME(4) TYPE N VALUE '0001', "Task name (name of
"parallel processing work unit)
BEGIN OF TASKLIST OCCURS 10, "Task administration
TASKNAME(4) TYPE C,
RFCDEST LIKE RFCSI-RFCDEST,
RFCHOST LIKE RFCSI-RFCHOST,
END OF TASKLIST.
Optional call to SBPT_INITIALIZE to check the
group in which parallel processing is to take place.
Could be used to optimize sizing of work packets
work / WP_AVAILABLE).
CALL FUNCTION 'SPBT_INITIALIZE'
EXPORTING
GROUP_NAME = GROUP
"Name of group to check
IMPORTING
MAX_PBT_WPS = WP_TOTAL
"Total number of dialog work
"processes available in group
"for parallel processing
FREE_PBT_WPS = WP_AVAILABLE
"Number of work processes
"available in group for
"parallel processing at this
"moment
EXCEPTIONS
INVALID_GROUP_NAME = 1
"Incorrect group name; RFC
"group not defined. See
"transaction RZ12
INTERNAL_ERROR = 2
"R/3 System error; see the
"system log (transaction
"SM21) for diagnostic info
PBT_ENV_ALREADY_INITIALIZED = 3
"Function module may be
"called only once; is called
"automatically by R/3 if you
"do not call before starting
"parallel processing
CURRENTLY_NO_RESOURCES_AVAIL = 4
"No dialog work processes
"in the group are available;
"they are busy or server load
"is too high
NO_PBT_RESOURCES_FOUND = 5
"No servers in the group
"met the criteria of >
"two work processes
"defined.
CANT_INIT_DIFFERENT_PBT_GROUPS = 6
"You have already initialized
"one group and have now tried
"initialize a different group.
OTHERS = 7..
CASE SY-SUBRC.
WHEN 0.
"Everythings ok. Optionally set up for optimizing size of
"work packets.
WHEN 1.
"Non-existent group name. Stop report.
MESSAGE E836. "Group not defined.
WHEN 2.
"System error. Stop and check system log for error
"analysis.
WHEN 3.
"Programming error. Stop and correct program.
MESSAGE E833. "PBT environment was already initialized.
WHEN 4.
"No resources: this may be a temporary problem. You
"may wish to pause briefly and repeat the call. Otherwise
"check your RFC group administration: Group defined
"in accordance with your requirements?
MESSAGE E837. "All servers currently busy.
WHEN 5.
"Check your servers, network, operation modes.
WHEN 6.
Do parallel processing. Use CALL FUNCTION STARTING NEW TASK
DESTINATION IN GROUP to call the function module that does the
work. Make a call for each record that is to be processed, or
divide the records into work packets. In each case, provide the
set of records as an internal table in the CALL FUNCTION
keyword (EXPORT, TABLES arguments).
DO.
CALL FUNCTION 'RFC_SYSTEM_INFO' "Function module to perform
"in parallel
STARTING NEW TASK TASKNAME "Name for identifying this
"RFC call
DESTINATION IN GROUP group "Name of group of servers to
"use for parallel processing.
"Enter group name exactly
"as it appears in transaction
"RZ12 (all caps). You may
"use only one group name in a
"particular ABAP program.
PERFORMING RETURN_INFO ON END OF TASK
"This form is called when the
"RFC call completes. It can
"collect IMPORT and TABLES
"parameters from the called
"function with RECEIVE.
EXCEPTIONS
COMMUNICATION_FAILURE = 1 MESSAGE msg
"Destination server not
"reached or communication
"interrupted. MESSAGE msg
"captures any message
"returned with this
"exception (E or A messages
"from the called FM, for
"example. After exception
"1 or 2, instead of aborting
"your program, you could use
"SPBT_GET_PP_DESTINATION and
"SPBT_DO_NOT_USE_SERVER to
"exclude this server from
"further parallel processing.
"You could then re-try this
"call using a different
"server.
SYSTEM_FAILURE = 2 MESSAGE msg
"Program or other internal
"R/3 error. MESSAGE msg
"captures any message
"returned with this
"exception.
RESOURCE_FAILURE = 3. "No work processes are
"currently available. Your
"program MUST handle this
"exception.
YOUR_EXCEPTIONS = X. "Add exceptions generated by
"the called function module
"here. Exceptions are
"returned to you and you can
"respond to them here.
CASE SY-SUBRC.
WHEN 0.
"Administration of asynchronous RFC tasks
"Save name of task...
TASKLIST-TASKNAME = TASKNAME.
"... and get server that is performing RFC call.
CALL FUNCTION 'SPBT_GET_PP_DESTINATION'
EXPORTING
RFCDEST = TASKLIST-RFCDEST
EXCEPTIONS
OTHERS = 1.
APPEND TASKLIST.
WRITE: / 'Started task: ', TASKLIST-TASKNAME COLOR 2.
TASKNAME = TASKNAME + 1.
SND_JOBS = SND_JOBS + 1.
"Mechanism for determining when to leave the loop. Here, a
"simple counter of the number of parallel processing tasks.
"In production use, you would end the loop when you have
"finished dispatching the data that is to be processed.
JOBS = JOBS - 1. "Number of existing jobs
IF JOBS = 0.
EXIT. "Job processing finished
ENDIF.
WHEN 1 OR 2.
"Handle communication and system failure. Your program must
"catch these exceptions and arrange for a recoverable
"termination of the background processing job.
"Recommendation: Log the data that has been processed when
"an RFC task is started and when it returns, so that the
"job can be restarted with unprocessed data.
WRITE msg.
"Remove server from further consideration for
"parallel processing tasks in this program.
"Get name of server just called...
CALL FUNCTION 'SPBT_GET_PP_DESTINATION'
EXPORTING
RFCDEST = TASKLIST-RFCDEST
EXCEPTIONS
OTHERS = 1.
"Then remove from list of available servers.
CALL FUNCTION 'SPBT_DO_NOT_USE_SERVER'
IMPORTING
SERVERNAME = TASKLIST-RFCDEST
EXCEPTIONS
INVALID_SERVER_NAME = 1
NO_MORE_RESOURCES_LEFT = 2
"No servers left in group.
PBT_ENV_NOT_INITIALIZED_YET = 3
OTHERS = 4.
WHEN 3.
"No resources (dialog work processes) available at
"present. You need to handle this exception, waiting
"and repeating the CALL FUNCTION until processing
"can continue or it is apparent that there is a
"problem that prevents continuation.
MESSAGE I837. "All servers currently busy.
"Wait for replies to asynchronous RFC calls. Each
"reply should make a dialog work process available again.
IF EXCP_FLAG = SPACE.
EXCP_FLAG = 'X'.
"First attempt at RESOURCE_FAILURE handling. Wait
"until all RFC calls have returned or up to 1 second.
"Then repeat CALL FUNCTION.
WAIT UNTIL RCV_JOBS >= SND_JOBS UP TO '1' SECONDS.
ELSE.
"Second attempt at RESOURCE_FAILURE handling
WAIT UNTIL RCV_JOBS >= SND_JOBS UP TO '5' SECONDS.
"SY-SUBRC 0 from WAIT shows that replies have returned.
"The resource problem was therefore probably temporary
"and due to the workload. A non-zero RC suggests that
"no RFC calls have been completed, and there may be
"problems.
IF SY-SUBRC = 0.
CLEAR EXCP_FLAG.
ELSE. "No replies
"Endless loop handling
ENDIF.
ENDIF.
ENDCASE.
ENDDO.
Wait for end of job: replies from all RFC tasks.
Receive remaining asynchronous replies
WAIT UNTIL RCV_JOBS >= SND_JOBS.
LOOP AT TASKLIST.
WRITE:/ 'Received task:', TASKLIST-TASKNAME COLOR 1,
30 'Destination: ', TASKLIST-RFCDEST COLOR 1.
ENDLOOP.
This routine is triggered when an RFC call completes and
returns. The routine uses RECEIVE to collect IMPORT and TABLE
data from the RFC function module.
Note that the WRITE keyword is not supported in asynchronous
RFC. If you need to generate a list, then your RFC function
module should return the list data in an internal table. You
can then collect this data and output the list at the conclusion
of processing.
FORM RETURN_INFO USING TASKNAME.
DATA: INFO_RFCDEST LIKE TASKLIST-RFCDEST.
RECEIVE RESULTS FROM FUNCTION 'RFC_SYSTEM_INFO'
IMPORTING RFCSI_EXPORT = INFO
EXCEPTIONS
COMMUNICATION_FAILURE = 1
SYSTEM_FAILURE = 2.
RCV_JOBS = RCV_JOBS + 1. "Receiving data
IF SY-SUBRC NE 0.
Handle communication and system failure
ELSE.
READ TABLE TASKLIST WITH KEY TASKNAME = TASKNAME.
IF SY-SUBRC = 0. "Register data
TASKLIST-RFCHOST = INFO_RFCHOST.
MODIFY TASKLIST INDEX SY-TABIX.
ENDIF.
ENDIF.
ENDFORM
Reward points if that helps.
Manish
Message was edited by:
Manish Kumar

Parallel Processing Error

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