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Course guide “Next Steps in SAP HANA Cloud Platform” – week 1

June 12, 2014 | 65 Views |
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Course Overview

ENROLL TO THE COURSE HERE (in case you haven’t, yet): Course: Next Steps in SAP HANA Cloud Platform

You can find a list of the course guides for each week of this course in the corresponding parent project of this blog post.

Week 1: SAP HANA Native Development

In the first week of this course you learn how you can develop SAP HANA native applications on the SAP HANA Cloud Platform.

Unit 1 – Basics

This unit provides you with the basics around the SAP HANA native development on SAP HANA Cloud Platform. You get to know some specifics around the current trial landscape that is used for your developer license. And you’ll learn how to connect to your HANA instance in the SAP HANA Cloud Platform via Eclipse.

Important/additional links

Unit 2 – SAP HANA Applications

In this unit you learn how easy you can import an SAP HANA native sample application into your HANA instance on SAP HANA Cloud Platform.

We use the SHINE application (also used in the openSAP course Introduction to Software Development on SAP HANA) to demonstrate how to accomplish this task.

Important/additional links

Unit 3 – SAP HANA Web-based Development Workbench

In this unit we use the SAP HANA Web-based Development Workbench to modify the SHINE application we imported in the former unit. All of this inside a web browser.

Important/additional links

Unit 4 – SAP HANA Predictive Analysis Library

This unit is just around the usage of the SAP HANA Predictive Analysis Library and how you can use it on the SAP HANA Cloud Platform. In the unit we’ll use the ABC analysis function to demonstrate how it can be used on your HANA instance on the SAP HANA Cloud Platform.

Important/additional links

Common issues

User has no authorization, privilege: REPO.MAINTAIN_IMPORTED_PACKAGES

This issue comes up if you’ve used the SAP HANA Studio SPS8. Find in the corresponding openSAP forum thread how to get around this issue.

Unit 5 – Extend SAP HANA Applications with HCP Services

In the last unit of week 5 we discover how to use the SAP HANA Cloud Platform Feedback Service by using it in the SHINE application we imported in unit 2 of this week.

Important/additional links

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26 Comments

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  1. Former Member

    Rui,

    I am not able to “install new software” on my eclipse kepler 64bit, to get the HANA dev tools. I get an error: ” Missing requirement: SAP In-Memory Computing Studio Authorization Depedency Viewer 1.0.7400 (com.sap.ndb.studio.authdepviewer 1.0.7400) requires ‘bundle org.eclipse.zest.core 0.0.0’ but it could not be found” and it will not continue.

    There are a few questions about this on the openSAP forum but no answers. how do we proceed?

    (0) 
    1. Former Member

      Hi Jason,

      which version of eclipse kepler do you use? It seems that your version missing some plugins, which are required for HANA dev tools.

      Please check whether the following plugin is installed in your eclipse:

      “Help” -> “About Eclipse” -> “Installation Details”

      Eclipse.PNG

      If not, you can install it from the Kepler Update Site (the first one in the screenshot):

      Eclipse_2.PNG

      Or alternatively you can use the Eclipse for JEE Deveopers version of Kepler. This ensures, that you have all required dependencies

      Best regards,

      Artem

      (0) 
      1. Former Member

        Thanks Artem, I will check this when I”m in the office later today. Interestingly I am on the J2EE version of the Kepler download so I would have thought these dependencies would be there. Thanks.

        (0) 
      2. Former Member

        This fixed it. It seems that even the eclipse kepler EE download is missing the Zest dependency as I downloaded a completely new eclipse and had same issue. Manually adding Zest sorts it all out though. Thx.

        (0) 
        1. Former Member

          Hmm, that’s strange. I also downloaded the new eclipse JEE as I started this course. The only difference I can imagine, I installed ALL plugins available from https://tools.hana.ondemand.com in one step. But actually that shouldn’t make a difference since the missing dependency is an Eclipse plugin.

          However, you can now work and this is the main thing 🙂

          Best regards,

          Artem

          (0) 
  2. Former Member

    Unable to connect to HANA instance through eclipse, stating error can not connect to cloud, checked error log:

    Caused by: java.io.IOException: Failed to find free local ports

        at com.sap.core.persistence.commands.tunnel.connection.HanaSpecificHelper.remapIfRequired(HanaSpecificHelper.java:105)

        at com.sap.core.persistence.commands.tunnel.connection.DBSpecificHelper.getLocalMappings(DBSpecificHelper.java:35)

        at com.sap.core.persistence.commands.tunnel.connection.DbTunnelManager.startTunnelClient(DbTunnelManager.java:82)

        … 9 more

    tried to change network setting not succeeded.

    (0) 
    1. Former Member

      Hi Jason,

      did you make the step with granting the role to the user:

      call “HCP”.”HCP_GRANT_ROLE_TO_USER”(‘<User>trial.opensap.shine.data::model_admin’,'<User>’)

      Best regards,

      Artem

      (0) 
  4. Former Member

    Is it normal that I must remove my HANA instance from eclipse and re-create it with the Add Cloud System menu every time I start up eclipse new….

    When you do this you lose the connection with the repository workspace and project explorer projects. No amount of refreshing or trying to create a new repository workspace does anything.

    Each time I must delete and start again… Obviously my save artefacts are still in the DB which is good, but it sure seems like a clunky process.

    I understand that when using the console client you must continually re-connect as it gives you a temporary username and password each time…. Is is the case that in eclipse the Cloud HANA instance is just doing this under-the-hood and therefore it is absolutely necessary to restart afresh every time…?

    Clunky!  ;-/

    (0) 
    1. Former Member

      I think it is not normal, since I don’t have this issue. Do you see the system after restart of eclipse in the Systems tab of HANA Dev perspective? If yes what happens if you right click on the system and say “Login”?

      Regards,

      Artem

      (0) 
      1. Former Member

        Guess what – I open up eclipse today and it auto-logged on and all is good. Must have just been a glitch yesterday. Thanks for your help   😉

        (0) 
  5. Former Member

    I have some errors during “checkout and Import Project” step, mostly errors are in below function. Errors line are in BOLD.

    function getTableSize() {

    function createTotalEntry(rs, table, rs2) {

    var record_count = rs.getInteger(1);
    var table_size = Math.round(rs2.getInteger(1) / 1024);

    return {
    “name” : table,
    “table_size” : table_size,
    “record_count” : record_count
    };

    }

    var i = 0;
    var body = ”;
    var list = [];

    var tableArray = [ “addresses”, “businessPartner”, “constants”,
    “employees”, “messages”, “products”, “purchaseOrder”,
    “purchaseOrderItem”, “salesOrder”, “salesOrderItem”, “texts” ];

    for (i = 0; i < tableArray.length; i++) {
    var query = ‘SELECT COUNT(*) FROM \”NEO_CF86K6EKVYTZ7NAPVLCCFSJ6M\”.\”s0004184905trial.opensap.shine.data::’
    + tableArray[i] + ‘\”‘;
    var conn = $.db.getConnection();
    var pstmt = conn.prepareStatement(query);
    var rs = pstmt.executeQuery();

    var query2 = ‘SELECT “TABLE_SIZE” FROM \”SYS\”.\”M_TABLES\” WHERE \”SCHEMA_NAME\” = \’NEO_CF86K6EKVYTZ7NAPVLCCFSJ6M\’ AND \”TABLE_NAME\” = \’s0004184905trial.opensap.shine.data::’
    + tableArray[i] + ‘\”;
    var pstmt2 = conn.prepareStatement(query2);
    var rs2 = pstmt2.executeQuery();

    while (rs.next()) {
    rs2.next();
    list.push(createTotalEntry(rs, tableArray[i], rs2));
    }

    rs.close();
    rs2.close();
    pstmt.close();
    pstmt2.close();
    }

    body = JSON.stringify({
    “entries” : list
    });

    $.response.contentType = ‘application/json; charset=UTF-8’;
    $.response.setBody(body);
    $.response.status = $.net.http.OK;
    }

    Any suggestions ?

    (0) 
  6. Former Member

    I am unable to assign the required authorizations for the feedback service. In fact my authorizations screen in the HCP cockpit looks very different from what Rui see’s on his screen. I do not have a column called Account. I only see columns for Application and Role.

    When I try to assign a new role I have no option to specify the account!

    Is this yet again another issue where those of use with original HCP trial account user-id’s are missing new functionality? My account is p1081110.

    3 weeks into the course an I’m still unable to complete the practical exercises from Week 1. Both this accounts issue and also the outstanding issue about not being able to activate the paldemo folder! Anyone from SAP able to help.

    (0) 
    1. Former Member

      Hi Jason,

      Your are right, currently the authorizations screen looks differently than the one described in the course materials. This is actually a newly introduced feature in the HCP cockpit, which was delivered after the course materials were prepared.

      Here are the steps you need to do in order to assign the Feedback Service roles to your user:

      1. Go to Users tab in the Authorizations Management view and type your user id.
      2. Click Show Assignments button (see 1 in below screenshot) and then click Assign (see 2 in below screenshot).
      3. In the popped up dialog select usageanalytics for the Account, feedback for the Application and FeedbackAdministrator for the Role (see 3 in below screenshot).
      4. Click Save button.
      5. Repeat step 3 by selecting FeedbackAnalyst Role.
      6. Click Save button.

      /wp-content/uploads/2014/07/screenshot_487754.png

      Now you are ready to access the Feedback Service Administration UI and to continue your exercises.

      Best Regards,

      Stanimir

      (0) 
        1. Former Member

          Hi Jason,

          Can you please check whether you have subscription to the Feedback Service.

          You can do that by executing the following command in the Console Client:

          • neo list-subscribed-applications -h hanatrial.ondemand.com -a <your trial account> -u <your user>

          Please let me know whether you have the following entry in the result:

          • usageanalytics:feedback

          Regards,
          Stanimir

          (0) 
          1. Former Member

            Hi again… that command says I have “No subscriptions available”. However if I look at the subscriptions menu in the web cockpit I can see the two that were setup for RDE.

            (0) 
            1. Former Member

              Hi Jason,

              That is the reason you cannot assign the roles – you do not have subscription to the Feedback Service.

              Could you please provide your account name and when it was created?

              I will subscribe it to the Feedback Service in order to be able to complete your exercise.

              Regards,

              Stanimir

              (0) 
                1. Former Member

                  Hi Jason,

                  You are now subscribed to Feedback Service.

                  Please assign the roles following the steps from my post on July 1st.

                  Regards,

                  Stanimir

                  (0) 
              2. Former Member

                Seems I also have this same problem as I have been able to assign the roles but do not have access to the Feedback admin UI – hence not able to complete unit 5 exercise. Could you please look at this for me as well. p1940705618.

                Regards,

                Andrew

                (0) 
                1. Former Member

                  Hi Andrew,

                  You are subscribed for the Feedback Service since you have managed to assign the roles.

                  Have you tried to open the Feedback Service Administration in a new browser session? When you assign the roles you always have to clear the session in order to be able to load the new page…

                  Best regards,
                  Stanimir

                  (0) 

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