SAP Logs & Traces: How to see the result of SimpleLogger.traceThrowable()

[MikeB]

In my application I use SimpleLogger to write logs:

1. SimpleLogger.log(int severity, Category category, Location location, String message, String messageID) — for non exceptions cases
2. SimpleLogger.traceThrowable(int severity, Location location, String message, String messageID, Throwable exc) — for cases with exceptions

The first function works correctly, while SimpleLogger.traceThrowable() doesn't seem to be writing any log at all, at least I can't find any log with the exceptions, written by traceThrowable() on https://HOSTNAME:PORT/nwa/logs.

I checked https://help.sap.com/saphelp_nw73/helpdata/en/48/470b83c7d0350ce10000000a42189d/frameset.htm and I can't spot any issue in my code.

Code snippet:

//works
SimpleLogger.log(logSevLvl, logCat, logLoc, logMsgID, logMsg);

//doesn't work
SimpleLogger.traceThrowable(logSevLvl, logLoc, logMsgID, logMsg, logExp);

Do you have any idea why I can't see any log, written by traceThrowable() in nwa/logs?

[ErvinSzolke]

Dear Mike,

please note that I have changed the tags by removing Webservices Java and NWDI as I don't see the relation to that topic, and I moved NWA to the primary tags.

Regards,
Ervin (moderator)

[MikeB]

Dear Ervin,

thanks for keeping me updated.
My project is developed in NWDS, and I assumed that the logging and tracing subject is tightly coupled with the infrastructure domain, since it serves the needs of maintainer to keep the core business process running, but barely has to do with the business process itself.

[former_member108703 · Accepted solution]

Hello Mike,

What log severity did You use? The issue may be that no logs generated on the set severity level or above. Try to change the severity to log more detailed information.

Zoltan

[former_member108703 · Accepted solution]

Addition:
You can set the trace severity in Configtool or in NWA or Visual Administrator depending on your NetWeaver JAVA version:

1771192 - (How-to) Log / Trace configuration for JAVA 7.1+ systems

1770670 - (How-to) Log / Trace configuration for JAVA 7.0

Zoltan

[MikeB · Accepted solution]

Hi Zoltan,

thanks for the links, but it seems to be links to the corporate intranet — *.sap.corp.

Can you, please, provide a public link for the documentation?

Thanks.

[former_member108703 · Accepted solution]

Hello Mike,

Sorry, check these links:

https://launchpad.support.sap.com/#/notes/1771192

https://launchpad.support.sap.com/#/notes/1770670

You can also also open them from SAP Launchpad by their number.

Anyways, You can change the log configurations here depending on your version:

1. Config tool: template ->log configuration ->categories/locations
2. NetWeaver Administrator: ToubleShooting > Logs and Traces > Log Configuration
3. Visual Administrator: ServerN ->Kerne ->LogManager

Zoltan

[MikeB · Accepted solution]

To your initial question, I'm using Severity.ERROR to call the SimpleLogger.traceThrowable(). This severity level is enough to write the data with SimpleLogger.log().

I tried to use the most detailed severity level, based on a documentation, — Severity.DEBUG, but it still doesn't work.

Code snippet:

SimpleLogger.traceThrowable(Severity.DEBUG,
                            Location.getLocation(MyClass.class.getName()),
                            "NotificationText",
                            "TEST TRACE",
                            new Exception());