IBM Streams 4.3.0
Processing element status values
Processing elements (PEs) have state and reason code (RC) values that provide information about the status of the PE.
| PE state | Description |
|---|---|
| Constructed | The PE is initializing. |
| Restarting | The PE is restarting. |
| Running | The PE is running. |
| Starting | The PE is starting. |
| Stopped | The PE is stopped. |
| Stopping | The PE is stopping. |
| Unknown | The domain controller service cannot be contacted to determine the current state of the PE. |
| Reason code | Description |
|---|---|
| (-) None | No reason code is available. |
| (A) Automatic | The system automatically moved the PE to this state. |
| (C) Crashed | PE processing stopped unexpectedly with a signal condition such as a segmentation violation (SEGV). |
| (F) Failure | The PE processing completed, but it returned a completion code that indicates that a failure occurred. |
| (H) Host failure | The PE is transitioning to a new resource because the resource it was running on experienced a failure. The domain controller service that is associated with the resource was removed or restarted. |
| (N) No feasible resource | The application manager service cannot find a resource to run the PE. |
| (R) User request | There was a user request to move the PE to this state, for example, stopping the PE because of a job cancellation request. |
| (S) Set capabilities failure | The domain controller service cannot set the requested authority for the PE. |
| (V) Voluntary | The PE stopped because its processing completed successfully without any errors. |