InnoDB reports "Unable to lock" with error 11 while starting (Doc ID 1466641.1)

Last updated on APRIL 02, 2017

Applies to:

MySQL Server - Version 4.0 to 5.5 [Release 4.0 to 5.5]
Information in this document applies to any platform.

Symptoms

You are unable to start the MySQL server because InnoDB is reporting an error similar to the following

InnoDB: Unable to lock ./ibdata1, error: 11

Changes

This problem typically arises when attempting to stop or start the MySQL server in some way.

Cause

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