KILL SESSION SOFT message in Alert log

Alert log having KILL SESSION SOFT message in Oracle 12c

Message:

2020-02-24T13:40:15.733337-08:00
KILL SESSION for sid=(89, 18959):
Reason = alter system kill session
Mode = KILL SOFT -/-/-
Requestor = PMON (orapid = 117, ospid = 4628, inst = 1)
Owner = Process: USER (orapid = 112, ospid = 2308)
Result = ORA-0
2020-02-24T13:40:57.584304-08:00
KILL SESSION for sid=(283, 2650):
Reason = alter system kill session
Mode = KILL SOFT -/-/-
Requestor = PMON (orapid = 132, ospid = 1180, inst = 1)
Owner = Process: USER (orapid = 119, ospid = 7324)
Result = ORA-0

Solution
It work with idle timeout for the session and PMON process is cleaning the session according to idle timeout session and write message in alert log file.
You can ignore this message.

You can see its mode is KILL SOFT — mean PMON is cleaning the session. If its KILL HARD then someone manually kill the session in Oracle 12c.

1 thought on “KILL SESSION SOFT message in Alert log

  1. Anonymous

    Yeah got this after upgrading to 19c. But checking the profiles, I don’t see any IDLE TIME settings that could have done the KILL SESSION. So why is the KILL SOFT still happening? 😦 Would be nice to know if there is a view that can provide more details on the sessions killed 😦

    Like

    Reply

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.