We are in 12.1.0.2 on Linux. I see that one of our query timeout due to above error ora-0103 that says user cancels the current operations. I checked alert log and did not see any errors. I checked AWR reports and found "failed login delay" as the top 5 events. Can you please tell me what does it mean and what causes this error? I did not find any oracle docs that explained it. Please help.