RE: phase RUN_RSGEN during EHP6 implementation takes a lot of time

      Dear Guys,

      it seems that SGEN has been introduced during the EHP6 implementation (shadow instance). Now this phase is taking a lot of time.

      My phase started at 15.00 and at 06.00 is still running.

      The strange thing is that it’s using 3 processes despite it has 12 processes available.

      Someone of you experienced the same behaviour?

      Hi Bruno,   Can you please check in the shadow instance if the job RSGEN_GENER8_SHADOW is really running or just in the hang status. Also check the job log for more information.   Also check the below information from the SUM guide   Checking SUM Guide - 3.10.5     If you selected the Advanced preconfiguration mode, you need to choose an execution strategy for the ABAP load generation (transaction SGEN).     You can select one of the following SGEN execution modes: Release upgrade only: Do not start ABAP load generation during the upgrade Enhancement package installation and SPS…

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      Greg Train Asked on November 2, 2016 in 60 upgrade.
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      1 Answers

        Hi Bruno,

         

        Can you please check in the shadow instance if the job RSGEN_GENER8_SHADOW is really running or just in the hang status. Also check the job log for more information.

         

        Also check the below information from the SUM guide

         

        Checking SUM Guide – 3.10.5

         

         

        If you selected the Advanced preconfiguration mode, you need to choose

        an execution strategy for the ABAP load generation (transaction SGEN).

         

         

        You can select one of the following SGEN execution modes:

        Release upgrade only: Do not start ABAP load generation during the

        upgrade Enhancement package installation and SPS update: Do not start

        ABAP load generation during the update

         

        If you plan to apply a high number of relevant changes to your system

        after the update in the form of a transport or a Support Package, we

        recommend that you generate the ABAP loads manually after the update.

         

        For more information about starting the load generation manually, see

        Generating Loads [page 157].

         

        Generate ABAP loads on shadow system during uptime

        With this option, the Software Update Manager uses the maximum number of

        processes entered below to generate the loads in the shadow system

        during the uptime.

         

        Generate ABAP loads on shadow system during uptime and start

        asynchronously in post downtime.

        With this option, the Software Update Manager uses the maximum number of

        processes entered below to generate the ABAP loads in the shadow system

        during the uptime. The transaction SGEN automatically starts again after

        the downtime during the Postprocessing roadmap step to regenerate the

        ABAP loads that were invalidated during the downtime.

         

        https://websmp207.sap-ag.de/~sapidb/011000358700000783532011E

         

        If you update a production system, you have to consider the impact on

        production operation. If you choose the standard or advanced

        preconfiguration mode, the shadow system is operated during uptime. This

        means that the source release system and the shadow system compete for

        the system resources. If the resource usage is of concern for the

        system, it makes sense to choose the preconfiguration mode standard

        since this mode uses only a limited amount of system resources.q[Å._B

        If you update a production system with a high demand for minimal

        downtime, the impact of the running shadow system on the source release

        system might not be important. In this case, it could make sense to

        choose advanced to shorten the overall runtime as much as possible.

         

        Thank You.

         

        Regards,

        Deepika

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