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  1. MariaDB Server
  2. MDEV-34529

Shrink the system tablespace when system tablespace contains MDEV-30671 leaked undo pages

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      Looks like the fix for MDEV-14795 didn't handle leaked undo pages (because even their extent has never been marked as freed). So MDEV-14795 assumes that it is used by server. This does NOT allow to shrink ibdata1 in a newer versions, even after a slow shutdown and even when UNDO is already moved to separate tablespaces (so instance re-creation is still required if the instance was ever affected by MDEV-30671.

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              thiru Thirunarayanan Balathandayuthapani
              valerii Valerii Kravchuk
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