BW Number Range Buffer

HI,
We are facing performance issue and i would like to perform BW number range buffering.
I used function module RSD_CUBE_GET to get the information on the dimension name.
What i notice is the name of the dimension in BW Production and BW Development is different.
I would like to know if we need to do Number range buffering directly in Production or should that be transported?
Appreciate anyone's advice on this..
Regards,
Maili

Hi everyone,
is there no one who can at least share his/her experience with number range buffering?
thanks for any input on this.
bye Ömer

Similar Messages

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    Hi,
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    Rachelle

    Have you checked OSS?  There are a number of notes regarding number range buffers (not necessarily BCS related).  For example, 964929 and 633980.
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    - Chris

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    Hello Gurus,
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    Hiiii
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    But Accounting document number range is Company code and year specific (T-Code = FBN1)
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  • I would like know more about Number range buffer

    Hi Guys,
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    Prasanna

    Hi Prasanna,
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    Gives what is number range buffering, purpose, precautions and lots more...
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    SRS

  • Number range buffer

    hi,
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    Try TCode SNRO, enter object EINKBELEG, and click the pencil button to change.  Select menu path: Edit -> Set up buffering -> No buffering.  This is the default setting as you should see "Number ranges are not buffered" under "Warning %".
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  • Number range buffer - can this really be? SAP BW 710

    Hello everone,
    hope you are fine!
    I am looking for some real light into the number range buffering
    I have extracted 2 Million data from DS 0PCA_EC_3 into a standard DSO which took inititally 13 h. (14 h in Production)
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    The result is - which I can not believe at the moment and thats why I am looking first for answers before I disable the number range buffering and ran again into 13 h load - that the load took plus activation 45 MINUTES!!!!!
    The Questions are:
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    3. What if I decide not to use the number range buffering after some loads, is it easy to disable again without any data issue?
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    bye Ömer

    Hi everyone,
    is there no one who can at least share his/her experience with number range buffering?
    thanks for any input on this.
    bye Ömer

  • Internal number range

    Hi All,
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    Rajesh

    Hi,
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  • Number ranges in SOLMAN 4.0

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  • Number Range Buffering - Detailed Explanation needed!!!

    Hi GURU's,
    Could someone please explain me what does it mean by Number Range Buffering and where we use it and how we use it.
    Wouls definitely assign points for the detailed explanation. Thanks in advance.

    Hai ,
    The number range buffer is used to increase performance when assigning
    numbers. Instead of fetching the numbers each time from the database,
    a single access to the buffer suffices. Only when the buffer is empty,
    is it refilled from the database (table NRIV).
    Use of the buffer has the following benefits:
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    the database. Speed is particularly important for applications that
    assign numbers frequently.
    · Database accesses are always subject to the database transaction
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    commit operation on the database. The application blocks further
    assignment, and the second user has to wait, until the commit has been
    executed.
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    may arise from assigning different numbers in a different order.
    Since the SAP kernel accesses table NRIV directly for the number range
    buffer, the structure of the table must never be changed. This also
    applies when adding new fields.
    We can set number range buffering inSNRO t code.
    Loading Master data - The number ranges buffer for the SID's resides
    on the application server and reduces DB server accesses. If you set
    e.g. the number range buffer for one InfoObject to 500, the system
    will keep 500 sequential numbers in the memory and need not access the
    database.
    Hope this helps.
    asing points if helpfull
    regards
    Kp

  • Number Range Buffering - SNRO

    Hi Gurus,
                 Can any one Plzz tell me why do v go for Number Range Buffering?
    It's use?? And the procedure to do it? I searched it in forum but didn't got what I needed. 
    Cheers,
    Sultan.

    hi,
    Tip on Number Range Buffering :
    When you load large quantities of data in an InfoCube, the number range buffer should be increased for the dimensions that are likely to have a high number of data sets.
    To do this, proceed as follows. Use function module RSD_CUBE_GET to find the object name of the dimension that is likely to have a high number of data sets.
    Function module settings:
    I_INFOCUBE = 'Infocube name'
    I_OBJVERS = 'A'
    I_BYPASS_BUFFER = 'X'
    The numbers for the dimensions are then contained in table 'E_T_DIME', column 'NUMBRANR'. If you enter 'BID' before this number, you get the relevant number range (for example BID0000053).
    You can use Transaction SNRO (-> ABAP/4 Workbench -> Development --> Other tools --> Number ranges) to display all number ranges for the dimensions used in BW if you enter BID*. You can use the object name that was determined beforehand to find the required number range.
    By double-clicking this line, you get to the number range maintenance. Choose Edit -> Set-up buffering -> Main memory, to define the 'No. of numbers in buffer'.
    Set this value to 500, for example. The size depends on the expected data quantity in the initial and in future (delta) uploads.
    !! Never buffer the number range for the package dimension !!
    Also heres the content of the note : 857998
    The number range buffering for DIMid's and SID's
    a) the DIM table increases by a large number of data records for each request
    b) the size of the DIM table levels out but at the beginning you expected or observed a significant increase
    c) there are many accesses to the NRIV table with reference to the number range object of the dimension table
    d) the InfoCube or the dimension table is deleted regularly and, therefore, the DIM table increases significantly in each period.
    The number range object for the SIDs of an InfoObject should be buffered if
    e) you regularly add many new data records to the SID table
    f) you know before the initial load that there is a lot of master data to be loaded for this InfoObject
    g) you delete the master data periodically and you always load many new records (this should be an exception).
    How do you find number range objects of the dimensions and SIDs whose number range should be buffered?
    h) You know in advance that the dimension table or the SID table will increase significantly per request.
    i) You observe accesses to the NRIV table and you can determine the number range object directly in the current SQL statement.
    j) A high number range level may indicate that there is a significant increase for these two BW objects (valid only for BID* and BIM* objects)
                           SE16 'NRIV'
    -> OBJECT = 'BID' or OBJECT = 'BIM'
                           displays all number range objects with number level (NRLEVEL).
                           Export this output to an Excel document and sort NRLEVEL in descending order. Most candidates usually have a high number range level.
                           You can determine the corresponding dimension tables by using the table RSDDIMELOC. You can find the InfoObject for SIDs using the table RSDCHABASLOC (the field NUMBRANR contains the last seven digits of the number range object). The procedure is even more effective if you read the table NRIV periodically and you determine the changes using NRLEVEL.
    k) Another indicator is if a dimension table or an SID table significantly increases on a regular basis.
                           How many instances should be buffered?
    In the past, a value between 100 and 500 has proved to be efficient. If there is still a high load for these number range objects on the table NRIV, you can increase the value.
    Caution:
    - Never buffer the number range object of the package dimension table of a data target.
    - In addition, never buffer the number range object of the request ID (RSDCHABASLOC-CHABASNM = 0REQUID), generally BIM9999998.
    - Ensure that not all dialog processes are occupied permanently
    hope this helps
    Regards

  • Applicant number range-NUMAP

    Friends
    We have configured the recruitment and the NUMAP feature is internal starting from 1.
    We have performed the initial entry of basic data action, applicant number is generated with 1. but the current number showing as 5 in the number ranges
    Again we have performed the same action, then the applicant number generated as 6 and the current number status showing as 10
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    Regards
    Kiran

    This thread talks about number range buffer being guilty for range number jump. It could also solve your issue.
    [Number range function module giving problem;

  • TR TO Number Ranges getting reset automatically

    Hi All,
    Can someone please help me to understand why the number range of WM objects - TR, TO, PCN, etc is getting reset automatically. Meaning even when I have 10 Trs or TOs created, when I see the current number range in OMLW it shows zero (that is initial).
    I am doing configuration in development system & while testing all of a sudden I start getting error messages when posting the material documents in IM.
    Initially I was shocked but after than I understood this. But most strangest thing is it is happening again & again. I discussed this ABAP team, but they are not able to understand.
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    Thank You very much Juergan,
    I contacted SAP as- this appeared to be risk for Project Go-live, and below is the answer... However I was am not able to get the find the Object & Subobject for Warehouse numbers
    Hello Hiren,
    Are you resetting the number range buffers in SM56 after the imports?
    You get to the buffers using transaction SM56. Chosse there in the
    menu - goto - entries. Enter in the popup the client and the object
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  • ODS Activation Failure due to Number range object for char doesn't exist

    Hi
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    I have made all tests in RSRV for dat Infoobject
    can any one suggest me ...........
    points will be assigned
    kindly mail me 2      [email protected]

    Hi,
    chk tis blog.. hope it clears wat buffering is
    /people/vikash.agrawal/blog/2006/04/05/load-lots-of-data-147faster148-with-buffering-number-range
    What is buffering number range:
    “Buffer the Numbers ( which system picks up from database -in case of Master Data – SIDs & in case of Transaction Data Dimension Ids) and use these buffered numbers rather than hitting the database (for each new master data records or for each new combination of SIDs to create a new Dimension Ids). So the concept is –
    “SID Number Range can be Buffered Instead of Accessing the Database for Each SID”
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  • Number Range Object for a Infoobject

    Hi Gurus,
    Can anyone explain me what is the significance of Number Range Object for a perticular infoobject and what do you mean by Buffering of those Number Range Object...
    Your help will be appreciated..
    Thanks a lot in advance..
    Thanks,
    Shalaka.

    Hai Shalaka,
    The number range buffer is used to increase performance when assigning
    numbers. Instead of fetching the numbers each time from the database,
    a single access to the buffer suffices. Only when the buffer is empty,
    is it refilled from the database (table NRIV).
    Use of the buffer has the following benefits:
    · Accessing the main memory is a thousand times quicker than accessing
    the database. Speed is particularly important for applications that
    assign numbers frequently.
    · Database accesses are always subject to the database transaction
    mechanism. Once an application has assigned a number for one user, a
    second user cannot assign a number until the first user has executed a
    commit operation on the database. The application blocks further
    assignment, and the second user has to wait, until the commit has been
    executed.
    · The number range buffer can also prevent deadlock situations, which
    may arise from assigning different numbers in a different order.
    Since the SAP kernel accesses table NRIV directly for the number range
    buffer, the structure of the table must never be changed. This also
    applies when adding new fields.
    We can set number range buffering inSNRO t code.
    Loading Master data - The number ranges buffer for the SID's resides
    on the application server and reduces DB server accesses. If you set
    e.g. the number range buffer for one InfoObject to 500, the system
    will keep 500 sequential numbers in the memory and need not access the
    database.
    #####>>> whenever master data loading is done system creates SIDs, &
    to create SIDs system look into a specific table, check the latest
    number & generate the next no in the series, so to check this latest
    no for every time ( every record) system needs to go back to database
    table & generate the next no in series. when I do the buffering I
    provide the whole series to system at application level so it need not
    to go back to table to check the latest no & generate the next one. It
    just picks up the next in available on application server.
    >>>####
    Please refer - SAPnote 130253
    Loading Transcation data - The number range buffer for the dimension
    ID's resides on the application server and reduces DB server accesses.
    For example, if you set the number range buffer for one dimension to
    500, the system will keep 500 sequential numbers in memory and need
    not access the database
    If you load a significant volume of transaction data (e.g., initial
    load), increase the number range buffer. If possible, reset it to its
    original state after the load in order to minimize unnecessary memory
    allocation
    Hope this information helps u....
    Asign points if helpfull
    regards
    KP

  • Number ranges cost center cycles

    hej,
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    Now we have on several occasions, "older documents" that get number lower than the "younger" document. i.e. a document created today got a number lower than the one created yesterday. ..
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    600428703 06/02/2012 16:15:50
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    600428892 06/02/2012 17:57:18
    600428898 06/02/2012 17:57:30
    600428706 07/02/2012 10:46:58 NOK
    600429266 07/02/2012 17:14:21
    600429478 07/02/2012 17:30:11
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    Nico

    Hi Nico,
    Gaps in number range are possible due to buffering.
    Please also review SAP Note 62077 reason why number jumps for CO document is
    normal system behavior due to buffering for performance.
    Note 62077 explains how to avoid gaps when allocating internal numbers.
    The problem can also due to inconsistency in the object number, and in
    order to solve that problem you should execute correction program
    RKCORR03,Please see notes 10217 & 106930.
    I would suggest you to check the consistency first and then try to
    number range buffer .
    br, GB

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