Database Reference
In-Depth Information
Java System Logs
The following is the location and a list of important Java log files ( Table 3-3 ) that need to be
verified in case of problems with starting the SAP NW AS Java system. This will be
covered in greater detail in Chapter 18 .
T ABLE 3-3 SAP Java System Startup Log and Trace Files
The location of important log files for a single-stack Java instance and a dual-stack
(ABAP + Java) instance is as follows:
• For the Java central instance, the default location of the log files is /usr/sap/<SID>/
JC<XX>/work directory where XX=System Number
• For the dual-stack central instance, the default location of the log files is /usr/sap/
<SID>/DVEBMGS<XX>/work directory where XX=System Number
SAP NW AS Java System Architecture
The SAP NW AS Java internal system architecture meets the Java EE (Enterprise Edition) 5
specification and consists of the following three logical layers, as shown in Figure 3-9 :
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