Great to be able to have some contribution to Oracle Community!! Mike is a Master Product Manager – Database Upgrade & Migrations at Oracle. He is an Oracle GURU in a scope of database upgrades.
Mike Dietrich mentioned me to have given him some info regarding insights on one of 2c hidden parameters https://blogs.oracle.com/UPGRADE/entry/gc_rac_issues_12_1. It really made my day!!
Thank you Mike!
GC Freelist Session Waits causing slowness and hangs
By Mike Dietrich-Oracle on Mar 22, 2016
About the author
An Oracle technology geek and crazy long distance runner, DBA24 Owner
Senior Oracle DBA / Consultant / [OCP10g, OCP12c, OCE RAC 10g] / [experience: 9y+]
Currently working for Bluegarden (Oslo Norway) by Miratech Group
Past: Mastercard / Trevica by Britenet, Citi International PLC, PZU