Agent for SAP failed to start

Products

• Workload Automation Agent
• ESP dSeries Workload Automation - Business Agents (dSeries)
• ESP dSeries Workload Automation - System Agent (dSeries)

Issue/Introduction

Unable to start the agent after installation with SAP Java Connector (JCo) error:

SAP ERROR: Connecting - Unexpected Problem: JCO.classInitialize: Could not load middleware layer com.sap.mw.jco.rfc.MiddlewareRFC JCO.nativeInit: Could not initialize dynamic link library sapjcorfc [<installdir>/libsapjcorfc.sl: specified file is not a shared library, or a format error was detected.]

Environment

Workload Automation Agent for SAP

Cause

This error message: JCO.nativeInit: Could not initialize dynamic link library sapjcorfc [<installdir>/libsapjcorfc.sl: specified file is not a shared library, or a format error was detected.] indicates a critical problem with loading the native SAP JCO library (libsapjcorfc.sl).

The "format error" specifically points to an incompatibility or corruption of the shared library file itself.

Resolution

• Remove the existing SAP JCo installed and install the correct version for the Operating System.
• Ensure the correct SAP JCO package (64-bit for HP-UX) was used based on the agent's JVM architecture.