| ERROR | Listener has shut down since all listen addresses have been deallocated |
| CAUSE | The event detection mechanism broke and caused all listen addresses to be removed. |
| ACTION | Error 1170 has occured and caused all the listen addresses to be deallocated. Since all the listen addresses have been removed, no more connections can be established to this listener so it shuts itself down. This error is not normally visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact Oracle Customer Support. |