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Creo View Adapters : Configuring Creo Workers to Automatically Clean Up Residual Creo Parametric Processes During Helper Restarts in Multi-Worker Environments to Minimize 'Failed to Start' Errors

Modified: 29-Aug-2025   


Applies To

  • Creo View Adapters 3.0 M010 to 12.1
  • Windchill PDMLink 10.0 to 13.1
  • Creo Parametric 1.0 to 11.0

Description

  • How to fix problems with the Creo View Adapters Worker failure to restart due to residual processes
  • If the worker's Creo Parametric session hangs during publishing and does not exit when the Helper process attempts to stop / kill the worker, subsequent attempts to start the worker will fail with a Failed to register... error
  • A common message sequence is similar to the one below:
  • Registering Server : proe2pv Error:56113: Failed to register Windchill server "http://<windchill_url>" "publish9055191759723715316tmp" - -33
  • The adapter has been configured to restart after the current job when this error occurs
  • proe2pv Error:13027: Cannot restart adapter, helper returned "Adapter already restarted once"
  • Note:
    • The error return codes may vary, although this will most commonly occur with Failed to register... messages
    • For example, Failed to register... messages ending in Creo/TOOLKIT error code -4 are also common
  • This approach is also useful for cleaning up after issues preventing automatic clean-up of the Common File System folders:
    • For example, the following WVS Background Method Server exception results in content being left behind:
      ERROR [Thread-21477 ProcessMessages] wt.wvs.workeragent.Worker  - 550 The process cannot access the file because it is being used by another process. 

      java.io.FileNotFoundException: 550 The process cannot access the file because it is being used by another process. 

          at com.ptc.wvs.server.util.FTP.rm(FTP.java:975)
          at com.ptc.wvs.server.util.FTP.doRmAll(FTP.java:934)
          at com.ptc.wvs.server.util.FTP.rmall(FTP.java:892)
          at com.ptc.wvs.server.cadagent.Worker.deleteAllTrash(Worker.java:1514)
          at com.ptc.wvs.server.cadagent.ProcessMessages.copyFilesOnDone(ProcessMessages.java:368)
          at com.ptc.wvs.server.cadagent.ProcessMessages.run(ProcessMessages.java:232)
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