Enterprise Software

IBM JVM 1.4.2 64-Bit in SAP NetWeaver Application Server Java Environments

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Executive Summary

Across the IBM platforms J9 (IT4J: IBM Technology for Java) has become the preferred technology to run Java applications in the SAP NetWeaver stack of releases 2004 and 7.0x. On the one hand SAP workload may be specific in some respect. On the other hand a huge quantity of general information is available. Therefore, based on the experience in support and development, this paper aims to provide a compact and relevant selection regarding terminology, description of typical problem situations, tuning options and tool usage. The paper presents selected options and Java parameters and describes some basics of garbage collection. In addition the paper describes the basic ideas of SAP's default parameterization.

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