parameters j2ee/scs/system & j2ee/ms/port & their values

[Former Member]

I have just installed the Java Stack, into an existing ABAP SAP system (Add-In).

I am about to create the following parameters, into the DEFAULT profile:

j2ee/scs/system

j2ee/ms/port

I have seen that these parameter take default values such as:

j2ee/scs/system = 01

j2ee/ms/port = 3901

Before I enter any values, is there a way to find what the system thinks these values are ?

For instance, if I run /nsmicm SMICM, I can find the J2EE (HTTP) ports ...

Best regards,

Tom

[sunny_pahuja2 · Accepted solution]

Hi,

>

> j2ee/scs/system = 01

For this parameter, system thinks it is SCS instance number.

> j2ee/ms/port = 3901

>

For this parameter, system thinks it is message server port number.

Thanks

Sunny

[Former Member · Accepted solution]

Yes Sunny, that's correct!

The questions are :

1) How can we find these values that the system uses ?

2) How/Where can I tell what the SCS instance number is ?

3) How/Where can I tell what the message server port number is ?

Should we look into the 'SAP Management Console '

Best regards,

Tom

[vincentlim826 · Accepted solution]

Tom,

You can find in /usr/sap/<SID>/SCS<instance No>/

or see SCS profile.

Message server port is using standard 39xx, where xx is referring to instance no of SCS

Regards,

Vincent

[Former Member · Accepted solution]

Vincent, excellent suggestion, thank you!

In my case, the SCS Instance # is 02, then

j2ee/scs/system = 02

j2ee/ms/port = 3902

I also understand, that the standard port numbers used by the Java instance for end user access are:

HTTP ====> 5xx00

HTTPS ====> 5xx01

where xx is the Java instance number (JCxx).

Then the URL for the users to connect to the portal should be:

http://<host-name>:<port-number>/irj/portal

Then, the correct URL should be:

http://<host-name>:50200/irj/portal

But that doesn't work!!!

Instead the following URL gives access to the users:

http://<host-name>:51000/irj/portal

where '10' is the ABAP instance number !!!!

How can we explain this ?

Best regards,

Tom

[sunny_pahuja2 · Accepted solution]

Hi,

Is your system dual stack or single stack (As Java) ?

Thanks

Sunny

[Former Member · Accepted solution]

Sunny, very good question!

I am having a dual (ABAP+Java) stack environment.

I've got a bit confused after reading the following wiki:

http://wiki.sdn.sap.com/wiki/display/EP/PortNumbers%2CSSL%2CandMessage+Servers

After further reading, I can tell that the parameter

j2ee/scs/system (and its subsequent j2ee/ms/port )

is NOT related to the Java ports 5xx00, do you agree ?

The value of the parameter j2ee/scs/system could be determined by looking at the

\usr\sap\<SAP-Instance-ID>\SCSxx

And the value 'xx' in the Java port 5xx00 is the SAP Central Instance Number, running in the sinlge or dual stack system.

You can find the Central Instance Number, by looking at the:

1) ABAP is the \usr\sap\<SAP-Instance-ID>\DVEBMGSxx

I am not sure what the path would be for a single (Java) stack !!

Best regards,

Tom

[Former Member · Accepted solution]

Hi Tom,

The 5xx00 ports are ICM related ports and not related to the J2EE SAP Central Services (SCS) parameters. As we can see the link, the ICM is for browser access and would in turn communicate to the ABAP or Java instance. The SCS port parameters defined would be mainly for internal communication or incase direct connection to message server is required.

http://help.sap.com/saphelp_nw70/Helpdata/en/84/54953fc405330ee10000000a114084/content.htm

Newer versions of Netweaver come with the SCS component. In dual stacks the Java page is also accessed by using the SAP Central Instance Number. This is different from older releases like 620/640 where if a Java Addin was put onto an ABAP system - the Java page had to accessed using the Java instance number (different from ABAP instance number). However for the new versions, the SCS instance removes the complexity. One less instance number to care about

For standalone Java system the path would be like /usr/sap/<SID>/JC<xx> and the <xx> is the Central instance number and used to access the home page.

Regards,

Srikishan

[Former Member · Accepted solution]

Thanks Srikishan!

Good information and explanation provided.

The wiki I had initially read wasn't clear, now I 've got a clear picture.

Best regards,

Tom