Troubleshooting

This section provides answers for the most common issues of the execution of COMPSs applications and its known limitations.

For specific issues not covered in this section, please do not hesitate to contact us at: support-compss@bsc.es .

Table of Contents

• How to debug
  • Java examples
    • Exception in the main code
    • Exception in a task
  • Python examples
    • Exception in the main code
    • Exception in a task
  • C/C++ examples
    • Exception in the main code
    • Exception in a task
• Common Issues
  • Tasks are not executed
  • Jobs fail
  • Exceptions when starting the Worker processes
  • Compilation error: @Method not found
  • Jobs failed on method reflection
  • Jobs failed on reflect target invocation null pointer
  • Tracing merge failed: too many open files
  • Performance issues
    • Different work directories
• Memory Profiling
  • Advanced profiling
• Known Limitations
  • Global
  • With Java Applications
  • With Python Applications
  • With Services