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Beware of Deferred Segment during 11.2.0.2 upgrade from 11.2.0.1

(Coskan Gundogar) We recently upgraded one of our biggest databases to 11.2.0.2 from 11.2.0.1 due to the library cache mutex related bugs on 11.2.0.1. Since I wasn’t the one who did the upgrade I have nothing to say about the process but I was the on call DBA on the next day after the upgrade.

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