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Refuse to acquire a second GlobalLock on a connection
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Authored by epriestley on Mar 2 2021, 9:38 PM.
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Details

Summary

Ref T13627. MySQL versions older than 5.7 release held locks when a new lock is acquired.

Prevent acquisition of a second lock to prevent this.

Test Plan

Added a failing unit test, made it pass.

Diff Detail

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