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End of Transport Queue in stms_import

What to do if we get our Transport Reques in End of Transport Queue?

Basically we are getting this, as we have Schedule import job at some fixed duration. Say for example 30 mins, so once it has passed that limit, it will take all those requests which fall in 30 mins bracket & truck (Import) will be started. So whatever next set of requests are there they will come after the end mark, which means those transports are ready for next Interval.

So we don’t need to do anything, this is due to Automatically Import job, so if you don’t want do happen this, then you can remove import job,

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How to change auto generated RFCs settings

We will open the suto generated RFC (from Tcode SM59) which you want to change.
Now we will go inside the RFC as shown in below screen.

Now we will enter togl

After that we can see that RFC will become editable

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Message Server

The task of the message server is to inform all the servers (instances) belonging to an SAP System of the existence of the other servers. It can also be contacted by other clients (for example, SAPlogon, RFC clients with load balancing) to get information about load balancing.

The SAP Message Server runs as a separate process mostly on the same host as the central instance.

Only one message server can run on each SAP System.

If the messages server stops working, it must be restarted as quickly as possible, to ensure system continues to operate trouble-free.

Monitoring the Message Server in the SAP System

To monitor the message server, you can use the Message Server Monitor (transaction SMMS) in the SAP System. You can check and change all the important settings, create and view traces, read statistics, and so on.

Monitoring the Message Server from the Browser

You can display details of the servers and logon groups from the Web browser too. To do this, in the URL use the host of the message server and the HTTP port of the message server (profile parameterms/server_port_<xx>).

Monitoring and Testing the Message Server at Operating System Level

To monitor the message server at operating system level you need access to the host on which the message server is running. You can log on here with user <sid>adm.

At operating system level there are various programs available, which are delivered with the standard system.

You will usually find the test programs in the executable directory /usr/sap/<SID>/SYS/exe/run.

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SAP Web Dispatcher

Purpose

The SAP Web dispatcher lies between the Internet and your SAP System. It is the entry point for HTTP(s) requests into your system, which consists of one or more Web application servers. As a "software web switch", the SAP Web dispatcher can reject or accept connections. When it accepts a connection, it balances the load to ensure an even distribution across the servers.

You can use the SAP Web dispatcher in ABAP/Java systems and in pure Java systems, as well as in pure ABAP systems.

Recommendation

It is also beneficial to use the SAP Web dispatcher, if you do not need security functions (entry point in the DMZ, SSL, URL filtering), but you simply want to balance the load between several SAP Web AS instances.

Introductory Comments

The SAP Web dispatcher is recommended when you use an SAP system with several SAP Web Application Servers for Web applications.

The SAP Web dispatcher is a program that you can run on the machine that is connected directly to the Internet. It requires minimal configuration - you just have to enter the following data in the profile file:

· Port, on which the HTTP(s) requests are to be received (parameter icm/server_port_<xx>)

· Host and HTTP port of the SAP message server (parameter rdisp/mshost and parameter ms/http_port)

Example

If you want to be able to call the Web application externally, for example using the URL www.shop.acme.com, this host name must be mapped internally to the SAP Web dispatcher. This then forwards the HTTP(S) request to a suitable SAP Web AS.

Functions

The SAP Web dispatcher performs the following tasks:

· Selects an appropriate application server (persistence with stateful applications, load balancing, ABAP or Java server), see Server Selection and Load Balancing Using the SAP Web Dispatcher.

· Filters URLs – you can define URLs that are to be rejected, see SAP Web Dispatcher as a URL Filter

· Depending on the SSL configuration, forwards, terminates, and (re)encrypts requests. See SAP Web Dispatcher and SSL

Restrictions

The SAP Web dispatcher is only useful in the Web environment. In the classic SAP system, load is balanced by the message server.

The SAP Web dispatcher forwards only incoming HTTP(S) requests to the Web application server and the response is then returned to the client.

Outgoing requests (such as requests to a different SAP Web Application Server) are not sent via the SAP Web dispatcher. They are sent via the proxy server for the appropriate intranet.

Source: https://help.sap.com/

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Why do we do Index rebuild?

When an indexed field in a table is changed repeatedly, the data is deleted from the index and re-inserted at a new block in the index. The new entries are always added to the right side of the index tree and therefor deletion is relatively to the left. When the index elements are deleted and added repeatedly, the left side of the index tree tends to be sparse and the right side keeps growing.
Fragmented index results in increased usage of database space and more blocks being read into the buffer. This can be avoided by rebuilding the index.
One can measure index fragmentation using the report RSORATAD or using DB02 --> Detailed Analysis --> Enter Index --> Detailed Analysis --> Analyze Index --> Storage Quality. If storage quality is less than 50% you may need to reorg the index.
If you wish to run an analysis on all the indexes, run the report RSORAISQN. Check SAP note 970538 for more details for more information on the restriction with using this report. Do not run the report without reading the note. You can also get an idea on the amount of fragmentation by comaring the size of the table and the index. If the size of the index is larger than that of the table, the index is fragmented.
Source: sapnwnewbie.blogspot.com

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Do we need to shutdown database also during kernel upgrade?

Generally, Kernel Upgrade means upgrade of DB Dependent files and DB InDependent files in your kernel directory.

The DB Dependent files consist of DLLs in Windows and similar other library files for other OS as well. So, logic, common sense and SAP recommends that Database should be down when you are doing a manual* Kernal Upgrade.

Lets say, you have not shut the DB and some file from kernel directory is in use. You will just get an error - "File is in use".

Again, the recommendations here is stop the DB, so that the file is no longer in user, instead of figuring out which PID is using that file and then just killing that process.

So, bottom line - get downtime approval for SAP and DB for Kernel Upgrade.

But stopping of database is not mandatory. Just stop Instance & services.

If there is no database activity like online backup going on, you can as well stop database since there is no user activity.

- If you have Java, Using JSPM for Kernel Upgrade is Generally a good option

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Check status of Business Process Engine (BPE) via SWF_XI_ADM_BPE_DISP

The Business Process Engine (BPE) executes integration processes at runtime
Recently I got an issue that one of our XI production system’s Business Process is not working correctly.
So to check the Business Process status we can use the TCode : SWF_XI_ADM_BPE_DISP or SWF_XI_ADM_BPE
Below is the screenshot of tcode SWF_XI_ADM_BPE_DISP
Here in the below screen, we can see that all the BPE components are running (green status) along with the BPE status.

The status display shows the status of the BPE and its components.

Green: Component running
Red: Component stopped
Amber: Component currently being stopped or started

This can take a few minutes. Wait until the status display changes.

Error icon: Error when starting or stopping the component.

You can decide whether you want to continue with the procedure or terminate. For example, if a component cannot be stopped, you can decide whether you want to attempt to stop the BPE again, or whether you want to restart the BPE completely.
We need to have below 2 roles for accessing these tcodes:

SAP_XI_BPE_MONITOR_ABAP
SAP_XI_BPE_ADMINISTRATOR_ABAP

We can also check the BP status from portal from RWB
http://<host name> <j2ee port>/rwb
Go to Component Monitor in Runtime Workbench. Now select Integration Server > Business Process Engine

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