Configuring Server Processes with SAP NetWeaver Administrator

Start the SAP NetWeaver Administrator (NWA) and logon with your AS Java user ID.

1. Call the SAP NetWeaver Administrator (NWA) and log on.

   1. Open the Edge browser.

   2. Enter the web address for the NWA.

      URL:http://<host name>:<port>e.g.:http://smhost.wdf.sap.corp:59100

   3. On the start page choose SAP NetWeaver Administrator. (alternatively you could extend the URL by adding the alias/nwa).

   4. Log on to the NWA with your AS Java user ID and password:

      • User: train-##
      • Password: your password

Check the configuration settings using the SAP NetWeaver Administrator on template level.

1. Check the value of the maxHeapSize for all instances.

   1. In the NWA, choose Configuration → Infrastructure.

   2. Choose functionJava System Properties in the content area.

   3. In the area Templates select the existing entry, for example ZATPL_AIO.

   4. In the section Details about ZATPL_AIO switch to the tab page Memory VM Parameters.

   5. In field Name search the entry maxHeapSize and flag the corresponding row in the table.

   6. Write down the values of the following fields:

      • Default Calculated Value: ______________
      • Custom Calculated Value: ______________

   7. In section Templates expand the template node (e.g. ZATPL_AIO).

      Result

      Notice, that all AS Java instances (PAS/AAS) are listed below the template. Individual instance-specific settings are possible, if a single instance ID is selected. Here we do not select an instance ID, cause changes should be applied at template level.

   8. Ensure row ZATPL_AIOis still selected (typically colored orange)!

   9. Select the propertymaxHeapSize.

   10. Write down the following values for this parameter:

       • Default Calculated Value: ______________
       • Custom Calculated Value: ______________

   11. Select the ParameterinitialHeapSize.

   12. Press the button Show Details.

   13. Answer the following question based on the shown details:

   14. Press Hide Details.

   15. Choose Home in the standard toolbar on the upper right hand side of NWA.

2. Check the parameter values of property MaxThreadCount as part of the Application Thread Manager on template level ZATPL_AIO.

   1. In the NWA, choose Configuration → Infrastructure.

   2. Choose functionJava System Properties in the content area.

   3. In section Templates select ZATPL_AIO.

   4. Choose the tab Kernel.

   5. Select the entry ApplicationThreadManager

   6. Search for the entry MaxThreadCount in the list of Properties. Which value is assigned to this parameter? Note that there is a Default and a Custom value column.

   7. Write down the following values for this parameter:

      • Default Calculated Value: ______________
      • Custom Calculated Value: ______________

   8. Press the button Show Details.

   9. Read the Descriptionfor this property.

   10. Press Hide Details.

3. Check the Thread Manager property MaxThreadCount.

   1. Still in the same User Interface in the area Details about ZATPL_AIO and with tab Kernel selected, choose the entry ThreadManager.

   2. In the area Extended Details, tab Properties, select MaxThreadCount.

   3. Select Show Details.

   4. Read the Description

   5. Press Hide Details.

4. Optional: Check the current settings using the NWA monitoring functions.

   1. Within the NWA use the search field on the top right hand side and enter: Monitor Browser.

   2. Press Go

   3. In the resulting list press on the entry Monitor Browser.

   4. On the window History Reports: Monitor Browser on tab Monitor Browser in section Monitoring Listchoose the selector of field Show with value Inactive/Not used.

   5. In the content area filter by Name with the search term Application Thread.

   6. Select the Line: /Kernel/Application Threads Pool/Max Thread Pool Size.

   7. At the bottom in the area Monitor Configuration press the button Activate.

   8. There is a confirmation message visible below the title of the application History Reports: Monitor Browser: "Changes were successfully saved".

   9. On top, in field Show select Active/Used.

   10. In the content area filter by Name with the search term Application Thread.

   11. Select the entry/Kernel/Application Threads Pool/Max Thread Pool Size.

   12. In the middle of the screen in area Monitor Details for: Max Thread pool Size you should now find the Current Value of this metric.

       Note

       You should see now the following information:

       Server Node ID	Current Value
       11<no.>	360
       12<no.>	300

You want to check an additional server process to the instance 12.Once you change the setting restart the instance mentioned in the tasks. Use the tool of your choice to restart the instance.

In TADM10 Landscape this exercise will not work. We keep it for the participants as a reference.

1. Within the NWA use the Start & StopWork Center to set the node count of instance 12 to 2 and restart this instance.

   1. Within the NWA navigate to the tab Operations → Start & Stop

   2. Choose the tab Java Instances (default).

   3. Select the line 12 (Instance ID 12<no.>)

   4. In section Instances select the push-button Set Node Count

   5. Provide the value In the pop-up:

      • Enter Number of Nodes: 2

   6. Press Save.

   7. In the pop-up Confirmation "Node count change requires instance restart. Restart instance 12 (Instance ID12<no.> at host epdhost?"select Restart.

   8. A further authentication with title OS Credentials should take place and is required to proceed. Enter the following data into the fields of the request:

      • User name: epdadm
      • Password: Master10

   9. Press OK.

      Note

      If you are logged on to the instance 11 you can observe the shutdown and start-up progress. If you are logged on to instance 12 you will receive an error message.

   10. Wait until the restart is finished or jump to the next Task and check the result of this task later.

Change the configuration settings using the NWA. In this task we focus on filter rules, which can be used to start/stop/disable services and/or applications for the startup routine. Once you change the setting restart the instance mentioned in the tasks. Use the tool of your choice to restart the instance.

In TADM10 Landscape this exercise will not work. We keep it for the participants as a reference.

1. Check the status of the applications tc~sld~wd* in NWA.

   1. Within the NWA navigate to the Work Center Operations , then Work Set Systems and choose function Start & Stop.

   2. Choose the tab Java Applications

   3. Within the section Application List enter in the Filterfield in column Name the following string: tc~sld~wd* and push theENTER key.

   4. Notice the status of the application tc~sld~wd~admin: ______________

2. Call the application sld in your SAP Application Server Java System.

   1. Open a browser.

   2. Enter the URL for the NWA http://<host name:port>/sld (for example http://epdhost.wdf.sap.corp:51100/sld)

   3. Log on with your AS Java user ID and password

   4. As we use a fresh installation and we are not going to use the sld (System Landscape Directory) it is not configured. Optional you can select the link Administration(top left corner), press Initial Setup and provide the following Object Server Name: train##ObjectServer.

      Result

      If you have done the last optional step and return to the Home screen, the red message disappears.

3. Check the status of the applications tc~sld~wd* in NWA again.

   1. Return to the NWA tab.

   2. Press the Refresh button in the Application List(on the right hand side).

   3. Enter the Status of the application tc~sld~wd~admin: ______________

   4. In the section Details About tc~sld~wd~admin notice on which Instance Number the application is started: ______________

4. Define a filter rule that disables all applications with the Component Name Masktc~sld~wd* on template level.

   1. In the NWA, choose Configuration → Infrastructure.

   2. Choose Java System Properties in the content area.

   3. Count the Tabs you find in the Details section: _________

   4. On the top in the Templates section, press the button Show Advanced Properties.

      Result

      You should now find the additional tabs: Filters and Shared Tables.

   5. If not already selected, choose in section Templates the first row called ZATPL_AIO.

   6. Select the tab Filters in section Details about ZATPL_AIO.

   7. In the list below tab Filters you can see the Inherited Filters.

      Note

      As visible, there is a specific sequence which is taken into account:

      • start all components
      • stop/start some specific application(s) and/or component(s)
      • disable many specific application(s) and/or component(s)

   8. In the lower part of the screen, area Local Filters, press Add.

   9. In the resulting pop-up Modify Filter enter the following information:

      Action:	disabled
      Vendor Mask:	sap.com
      Component:	application
      Component Name Mask:	tc~sld~wd*

   10. Press Set.

   11. Press Save.

   12. Notice the confirmation below Java System Properties: Overview"Filters were saved successfully. In order for the changes to take effect, restart the cluster."

   13. Press Hide Advanced Properties.

   14. Use the History and select Start & Stop: Java Applicationsor (if not available) switch to Home and use navigation path Operations → Systems → Start & Stop → Java Applications.

   15. Press More Actions → Edit Startup Filters.

       Result

       You jumped to Java System Properties: Overview, the Show Advanced Properties button has been pressed ("by the system") and you see the Filter in the area Local Filters which you just configured.

5. Restart the PAS instance with a tool of your choice (e.g. SAP MC or sapcontrol).

6. Open the alias /sld in your SAP NetWeaver AS Java System EPD.

   1. Open a browser.

   2. Enter the URL for the NWA based on the PAS instance (!) http://<host name>:>port of PAS instance>/sld (for example http://epdhost.wdf.sap.corp:51100/sld)

   3. Which message do you receive in the browser? ______________

      Hint

      Because you disabled this application, you should receive the error: 404 Not Found or 503 Service Unavailable and in the details the message should be: Error: Application is stopped. In our scenario this is a the expected message which confirms the disabling of the sld applications.

7. Use the Start & Stop function to start the Java Application tc~sld~wd~admin.

   1. Open the NWA in a browser on EPD-WTS.

   2. In the NWA, choose the menu path Operations → Systems.

   3. Select Start & Stop.

   4. Select the view Java Applications.

   5. On the top left use the filter field and enter: sld

   6. Press ENTER.

   7. Select the row tc~sld~wd~admin.

   8. Press Start.

      Result

      You get the message on top below window title Start & Stop: Java Applications: "Application is starting asynchronously. To see the current state, choose "Refresh" in the status table"

   9. Press the refresh icon (at the right hand side of the Application List.

      Note

      In the field status of instance PAS should be written: Failed to start.

      If it did not work as expected, repeat to start the application and press again refresh.

      Caution

      Remember, that we did not restart the AAS instance since the configuration of the own filter. In addition there are multiple potential reasons why it did not work, for example ...

      • Browser cache issues > close all sessions of this browser type and retry
      • URL accessing the AAS instance instead of PAS instance > edit URL or restart AAS instance

8. Optional: Restart the AAS instance with a tool of your choice (e.g. SAP MC or sapcontrol).

Change a parameter of a selected service using the NWA.

In TADM10 Landscape this exercise will not work. We keep it for the participants as a reference.

1. Change for the service HTTP Provider the parameter DetailedErrorResponse from false to true on template level. Then change it back to false on the PAS instance level. This exercise is intended to show the system behavior with regard to template and instance level configuration levels.

   Hint

   Service HTTP Provider parameter DetailedErrorResponse: By default, the Web Container issues a short message to the client browser. To troubleshoot this kind of application error, you have the following two options:- Keep the short messages you could use the error ID to look-up error details from the corresponding trace file.- Enable verbose error messages to be issued to the client browser. However, this is considered insecure behavior and we recommend that you use it only on non-productive systems. To enable detailed error messages follow the exercise.

   1. If not already done, in the NWA, choose Configuration → Infrastructure → Java System Properties.

   2. Select the active template, for example ZATPL_AIO.

   3. Switch to tab Services.

   4. In the area Details about ID11<no.> use the Filter field for column Nameand enter HTTP.

   5. Press ENTER.

   6. If not yet selected, choose row HTTP Provider.

   7. In the areaExtended Details search for the parameter DetailedErrorResponse (by scrolling down or using the filter field with input Detail followed by ENTER).

   8. Select the line DetailedErrorResponse.

   9. Press Show Details.

   10. Read the Description of the parameter in section Default Property Data.

   11. Check the Range of this Parameter

   12. Press Hide Details.

   13. Is the flag Changeable checked: ______

   14. Press the button Modify.

   15. In field Enter Custom Value in the pop up window enter: true.

   16. Press Set.

   17. Press Save.

       Result

       Check the status on top of the screen below the window title Java System Properties: Overview: "Changes were saved successfully".

   18. In the Templates area expand ZATPL_AIO and select the row for the PAS instance (11<no.>).

   19. For parameter DetailedErrorResponse. Write down the values of the following fields:

       • Default Calculated Value: ___________
       • Custom Calculated Value: ___________

   20. Press Modify.

   21. Enter false.

   22. Press Set.

   23. Press Save.