Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-19022

InnoDB fails to clean up useless B-tree pages

    XMLWordPrintable

    Details

      Description

      The test case of MDEV-14126 demonstrates that InnoDB can end up with an index tree where a non-leaf page has only one child page. Such internal nodes are totally unused and should be removed when the B-tree is being shrunk in the first place. The functions btr_discard_only_page_on_level(), btr_lift_page_up(), or btr_compress() or their callers may have to be revised.

        Attachments

          Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-14126 Assertion `page_get_page_no(page) == index->page' failed in btr_pcur_store_position

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

            Activity

              People

              Assignee:
              marko Marko Mäkelä
              Reporter:
              marko Marko Mäkelä
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

                  Git Integration