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[Max Bubenick <max.bubenick@xxxxxxxxxxx>]

Public bug reported:

The workaround for that is using SAVEPOINTs within the dumping
transactions, but with multiple threads and multiples chunks being
dumped in parallel for the same table is not easy to coordinate, we can
end up with an inconsistent backup when a TRUNCATE or DROP is executed.

** Affects: mydumper
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1272443

Title:
  The dumping threads will hold metadata locks progressively while are
  dumping data.

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