Skip to Content
author's profile photo Former Member
Former Member

Safety interval upper and Lower limit

Hi Gurus,

Im very new to the FI extraction. Please clarify my understanding is correct?

Safety Interval Upper Limit

Suppose the timestamp that was read last is 12:00:00. Delta extraction begins at 12:30:00. The safety interval for the upper limit is 120 seconds. The safety interval for the delta request is: 12:00:00 to 12:28:00. Upon completion of the extraction, the pointer is set to 12:28:00.

1 Q: For the next extraction , the delta begins at 12:28:00 ( because the pointer is set to 12:28:00), As the safety interval for the upper limit is 120 seconds. The delta request will from 12:28:00 to 12:58:00 and the pointer is set to 12:58:00.

Is this correct?

If yes, then what is the use of giving this upper limit. Anyhow its going to extract the half hour data. Instead of extract the data from 12:00;00 to 12:30:00 and 12:30:00 to 13:00:00 , it is extracting from 12:00:00 to 12:28:00 and 12:28:00 to 12:58:00.

If no, how will the next delta extraction take place.

2 Q : In 0FL_GL_4 datasource, how to find the safety interval limit. I checked in RSAO2 but i could not find it. I have activated the datasource and it existing in RSA6 also. Is there any per-requistie to see the safety interval limit?

Add a comment
10|10000 characters needed characters exceeded

Related questions

2 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Jun 22, 2012 at 06:30 PM

    Hi

    You understand it in reverse.

    Saftey Upper limit:

    Lets take your upper limit is 120secs and your last extraction time is 12:00. now if you start extraction at 12:30 then what is the intervals that system picks for extraction.

    system will pick from 11:58 to 12:30 and new delta pointer sets to 12:30.

    So in this case we will get duplicate records. in this scenario you have to load data to DSO and then to Info Cube to avoid duplicate records.

    Safety lower limit works exactly opposite to this.

    RSO2 is for generic data source. check in ROOSOURCE table, you will get the information

    Add a comment
    10|10000 characters needed characters exceeded

  • Posted on Jan 06, 2014 at 04:39 PM

    http://help.sap.com/saphelp_nw70/helpdata/en/45/757140723d990ae10000000a
    155106/content.htm

    For safety, the delta process uses a lower interval setting of one hour
    (this is the default setting). In this way, the system always transfers
    all postings made between one hour before the last delta upload and the
    current time. The overlap of the first hour of a delta upload causes any
    records that are extracted twice to be overwritten by the after image
    process in the ODS object with the MOVE update. This ensures 100% data
    consistency in BW.

    662055 - NewGL/FI-SL/EC-PCA extractors: Security interval is

    For DataSources with delta mode AIED (for example, 0FI_GL_14 and
    0FI_GL_10), you can work with the lower safety interval (default) or
    with the upper safety interval, and also with a combination of both
    intervals.
    For AIED DataSources, we recommend that you set the upper interval as
    high as possible and the lower interval as low as possible.
    However, the total of both intervals must not fall below 3600 seconds.

    See the below note:

    1523670 BW delta extraction: Setting the safety intervals

    The parameter DELTASAFE1 from table ROOSOURCE controls

    only the lower limit on time selection, while for the

    upper limit DELTASAFE2 is responsible with default 0.

    The value 3600 for DELTASAFE1 means, it reads with overlap

    of 1 hour in the past of the prior extraction. This is

    to ensure that propably not yet committed records in the

    actual extraction due to data base posting delays are

    at last extracted then in the next delta upload.

    regards,

    Colin

    Add a comment
    10|10000 characters needed characters exceeded

Before answering

You should only submit an answer when you are proposing a solution to the poster's problem. If you want the poster to clarify the question or provide more information, please leave a comment instead, requesting additional details. When answering, please include specifics, such as step-by-step instructions, context for the solution, and links to useful resources. Also, please make sure that you answer complies with our Rules of Engagement.
You must be Logged in to submit an answer.

Up to 10 attachments (including images) can be used with a maximum of 1.0 MB each and 10.5 MB total.