How to resolve an ORA-03113 alert

Clarity sends an ORA-03113 alert when there is a communication error with an Oracle shadow process. Learn how to pinpoint the cause.

Shadow processes are client processes managed by the Oracle database. If they experience any communication issues, Clarity sends an Error – ORA-03113 alert. ORA-03113 is known as an "end of file on communication channel," but that isn't enough to indicate the cause. Some possible issues include:

  • Your server machine crashed.
  • Your server process was killed at the O/S level.
  • There are network problems.
  • There are Oracle internal errors (ORA-600/ORA-7445).
  • The client is incorrectly handling multiple connections.

When an ORA-03113 occurs, it usually requires detailed troubleshooting: 

  1. Follow the steps outlined in Doc ID 1506805.1 to get to the root of this issue. 
  2. Then, open a service request with Oracle to determine an exact solution.