Config Tool Hangs after Upgrade 

Symptom

You upgrade your system from SAP NetWeaver 2004 SPS 18 to SAP NetWeaver 7.0 SPS 12.

You make some changes in Config Tool and then it hangs. The following is displayed in the console window:

PerfTimes : loadNativeLayer: loading jperflib failed. no jperflib in java.library.path java.lang.reflect.InvocationTargetException         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:<number>)         at java.lang.reflect.Method.invoke(Method.java:<number>)         at com.sap.engine.offline.OfflineToolStart.main(OfflineToolStart.java:<number> ) Caused by: java.lang.OutOfMemoryError Program terminated abnormally Press any key to continue . . .

 

Scenario Type:                   Error analysis

NetWeaver Component:   J2EE Engine

Validity:                               SAP NetWeaver  7.0

Analysis

If your system has many instances, Config Tool has to load much more data.

As a result, Config Tool hangs since it needs much more memory.

Solution

In the configtool.bat file, add the JVM parameters Xms512M and Xmx512M.

Now the memory parameter is increased and Config Tool works properly.