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MR type of lock

happy10319May 2 2012 — edited May 2 2012

Hi,
on 11g R2 I have many MR lock.
In documentation it is said :
MR
Media recovery

But I can not understand what kind of lock it might be and if it's blocking the bach running.
Thank for help.

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Locked on May 30 2012

Added on May 2 2012

#general-database-discussions

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