Killed Session Are Not Cleaned By PMON, Sessions are part of Distributed Transactions
Last updated on NOVEMBER 28, 2017
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Information in this document applies to any platform.
Due to application design, database has some inactive sessions remaining in database. When these sessions are killed manually in the database using alter system and killed at OS level using kill -9 as well , sessions still remain in database (v$session) . OS session goes away but database session does not.
Patch 16494960 does not resolve the problem.
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