SAP JVM

[Ranjith418]

Hi Friends,

We have installed SAP JVM replacing the IBM JDK. The SAP system is ABAP  NetWeaver BI 7.0 . After the recent maintenance, the system came up normally but sap admins said the jvm is not up. Can someone guide on how to check the jvm status, start stop and jvm administration if any?

Thanks,
Ranjith

[Ranjith418]

Hi Venkat , Roman

Thanks for the response. The system is BW ABAP. I am confused why the basis team has installed jvm in BW ABAP system. Do we really need jvm in BW systems be it ABAP or dual stack?

Thanks,

Ranjith

[Former Member]

You need to have SAP JVM installed for Java and dual-stack (Java inside) systems only.

Regards,

Roman

[Ranjith418]

Hi Roman,

I noticed while installing NW 7.02 ABAP, JVM is getting installed / used for diagnostic agent installation. Could it be JVM is required for diagnostics agents in ABAP stack?

Thanks,
Ranjith

[Former Member]

A diagnostic agent is a standalone java program that runs on each of the systems managed by SAP Solution Manager Diagnostics. Therefore it requires that JVM has been installed.

Regards,

Roman

[Former Member]

For AS ABAP there is no need to install SAP JVM. What do you mean about "jvm is not up"? JVM is used to execute java programs. You can't start jvm as standalone unit.

Regards,

Roman

[Former Member]

Hi Ranjith,

Is it only ABAP? or Java?

Check below

JAVA_HOME=/usr/sap/SID/SYS/exe/jvm/linuxx86_64/sapjvm_4.1.020/sapjvm_4

Open java url:: http://host:5XX00 -> system info and you'll see version is changed to 4.1.020 for both dispatcher and server.

Thanks,

Venkat