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R-algorithm runs infinitely on HANA table

Hi All,

I'm running R-algorithm on HANA table, which has got only 2 fields - 1 varchar & 1 integer and just 100 rows. When I apply R and start running, it runs indefinitely, without results.

I'm running PA - 1.0.7

Can you help in this

Regards,
Chandu

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  • Best Answer
    Posted on Mar 01, 2013 at 08:23 PM

    Hi Chandra,


    R-algorithms can be executed in different ways (HANA side or PA side). To help understand what is going on, can you please post
    - what database source you chose in SAP PA (ie HANA Online or Offine)
    - The exact name of the algorithm module you are using (ie HANA R-Triple Exponential Smoothing)

    It would also help to get a log created, Support will probably ask for this anyway. See page 18 in
    https://websmp104.sap-ag.de/~sapidb/011000358700001128302012E/pa_sp1_install_en.pdf

    Just a heads up, the docu states to specify the log directory in this format: log_dir="C:\logs"
    For me it would only work with a forward-slash though: log_dir="C:/logs"

    Andreas

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  • author's profile photo Former Member
    Former Member
    Posted on Mar 01, 2013 at 07:48 AM

    Are you sure your R-script works fine? Then we can rule that one out.

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  • Posted on Mar 01, 2013 at 08:49 AM

    Chandu,

    as always with performance troubles, the question is 'where is the time spent'?

    Do you see any activity in HANA or is PA running in circles or does the R process not let go of your data set?

    - Lars

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