JCO_TRACE_LEVEL (Parameter)

System Parameter Reference

Parameter: JCO_TRACE_LEVEL

Definition

Turns on the Java Connector (JCo) traces. Possible levels are 0 to 10

Description and Use

This system parameter turns on the Java Connector (JCo) traces.

Syntax and Constraints

The possible levels are 0 to 10. The common ones used are:

0: no trace,
1: JCo version, runtime environment info and important public API calls,
2: level 1 traces and additional public API calls (e.g. getClient and releaseClient),
3: level 2 traces and internal middleware calls (JNI/JRfc layer),
4: level 3 traces and more internal middleware details (e.g. enter/leave API info),
5: level 4 traces, record memory allocation info and important caller stack trace info (e.g. for removePool, setTraceLevel),
6: level 5 traces, RFC meta data and ASCII content data,
7: level 6 traces and additional Hex values for content data,
8: level 7 traces and full content data dump (no char or row limit),
9: level 8 traces and Java to/from C marshalling field data and codepage converter calls,
10: level 9 and memory leak analysis info (Record ObjectIDs and detailed freeRecord)

Defined Constraints

The SAP CC Core Server system verifies the following constraints:

Instance Type	Constraint
Dispatcher instances	The parameter must be less than or equal to 10 . The parameter must be greater than or equal to 0 .
Bulkloader instances	The parameter must be less than or equal to 10 . The parameter must be greater than or equal to 0 .

Technical Details

For more information, consult this section.

Name

JCO_TRACE_LEVEL

Turns on the Java Connector (JCo) traces. Possible levels are 0 to 10

Category Parameter

Type Integer

Access (RO/RW)

RW(+): Dynamic Read / Static and Dynamic Write

An immediate change is possible but is temporary. When it is relevant, change the permanent settings used by the SAP CC Core Server system when it restarts.

Use the Admin+ user interface to change the runtime values or the permanent values of this system parameter in an instance of the SAP CC Core Server system or in multiple instances.

Groups

System: Log and Trace Settings

Instance Types

This system parameter is available in the following types of instances in a running SAP CC Core Server system:

dispatcher, bulkloader

Default Values (Factory Settings)

The predefined default values are:

Instance Type	Value
Dispatcher	`0`
Bulkloader	`0`

You can use a default value to reset the runtime value or the restart value (persistent) in the Admin+ user interface.

Note

A default value is part of the factory settings of the SAP CC Core Server systems. It differs from the original value set during the installation or after the Customizing activities.

In Admin+, you can reset a parameter value to this default value, but it is not recommended:

This value may differ from the original value set during the installation of your SAP CC system.
Note that it may also differ from the value defined by the implementation project team and set during the Implementation Phase of the integration project.

Verify the values in your running SAP CC systems before to use the reset command.

Constraints

The SAP CC system checks the following constraints:

Dispatcher instances	The parameter must be less than or equal to 10 . The parameter must be greater than or equal to 0 .
Bulkloader instances	The parameter must be less than or equal to 10 . The parameter must be greater than or equal to 0 .