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  1. MariaDB Server
  2. MDEV-13328

ALTER TABLE ... DISCARD TABLESPACE takes a lot of time with large buffer pool (>128G)

    Details

    • Sprint:
      10.1.29

      Description

      ALTER TABLE ... DISCARD TABLESPACE takes a lot of time with large buffer pool (>128G).

      Steps to reproduce:

      1. drop / create an InnoDB table
      2. discard the table space
      3. increase the buffer pool size.
      4. Re-try once you have a 128G+ buffer pool, and re-run #1 & #2.

      The discard time should be increasing.

        Attachments

        1. perf_10g.data
          316 kB
          Jan Lindström
        2. perf_5g.data
          510 kB
          Jan Lindström

          Issue Links

          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-16759 InnoDB: Assertion failure in thread 139946191502080 in file row0ins.cc line 285

          • Major - Major loss of function.
          • Closed
          is part of

          Bug - A problem which impairs or prevents the functions of the product. MDEV-16283 ALTER TABLE...DISCARD TABLESPACE still takes long on a large buffer pool

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-14263 FLUSH TABLES FOR EXPORT may write the same pages multiple times

          • Major - Major loss of function.
          • Confirmed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-14310 Possible corruption by table-rebuilding or index-creating ALTER TABLE…ALGORITHM=INPLACE

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Task - A task that needs to be done. MDEV-9459 Truncate table causes innodb stalls

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

            Activity

              People

              • Assignee:
                marko Marko Mäkelä
                Reporter:
                ccalender Chris Calender
              • Votes:
                2 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: