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Purpose

The purpose of this section is to describe logs files, which are important to analyze ME application problems. 

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Overview

Defaulttrace files

  • Contains logs and traces from NetWeaver engine and Java EE applications - including SAP ME logs (see SAP Note 1266339 how to enable and view SAP ME traces on Netweaver).
  • Will contain stack traces if an error occurs in the system. The stack traces help pinpoint the root cause of the issue.
  • You should always check this log first when any system issue is reported. You can find defaulttrace files under /usr/sap/<SID>/<Instance>/j2ee/cluster/<server>/log path.      Select the image to expand it.

Some tips for getting useful information include:

    • In instances where there are lots of entries during a short period of time it is usually easier to obtain the stack trace manually from the raw text file than through the Log Viewer GUI.
    • You can collect SQL trace for only one specific user as per SAP Note 2270991
    • If there are multiple stack traces with the same time stamp, than the most useful one is usually the first one.
    • When submitting a stack trace to support be sure to include the entire contents of the stack trace.

dev_server files

  • Contains startup parameters for the server node.
  • Contains verbose garbage collection output.
  • You should always check this file when a memory issue is suspected. You can find dev_serverX files under /usr/sap/<SID>/<Instance>/work path.      Select the image to expand it.

dev_icm files

  • Contains startup parameters for ICM.
  • Contains information about ICM runtime activity.
  • You should always check this file when connectivity issues to the application server are suspected. You can find dev_icmX files under /usr/sap/<SID>/<Instance>/work path.      Select the image to expand it.

responses.trc files

  • Contains HTTP response code for all HTTP responses from the server node.
  • Contains IP address of HTTP client.
  • Contains URL of HTTP request.
  • You should check this file when troubleshooting HTTP errors.
  • You should check this file if you suspect a spike in HTTP request activity. You can find responses.trc files under /usr/sap/<SID>/<Instance>/j2ee/cluster/<server>/log/system/httpaccess path.      Select the image to expand it.

Related Documents

Logging and Tracing

Related Notes

SAP Note 1676689  - 'SQL trace data not available on defaulttrace.log file'
SAP Note 1266339  - 'How to enable and view SAP ME traces on Netweaver'

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