Uploaded image for project: 'Moodle'
  1. Moodle
  2. MDL-40579

Restore performance improvements

    XMLWordPrintable

Details

    • Epic
    • Status: Closed
    • Major
    • Resolution: Won't Do
    • 2.4.5, 2.5
    • None
    • Backup, Performance
    • MOODLE_24_STABLE, MOODLE_25_STABLE
    • Restore performance

    Description

      Restore performance is very poor as it does large number of database interactions. It also does millions of function calls.

      There are a number of optimizations that can be included to improve the performance of the restore function.

      Attachments

        Issue Links

          has a non-specific relationship to

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-29439 Quiz restoration is very slow if the backup contains lots of questions

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

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-30018 Quiz Duplication With Carriage Return Results in a Fatal Error

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

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-39726 Question restoration should not use a loop over questions, it can be done once per context

          • Major - Major loss of function, incorrect output
          • Closed
          has been marked as being related by

          Sub-task - Issues are sometimes broken into multiple sub-tasks. MDL-23547 improvement: build one static cache for get/set_get_backup_ids_record()

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-44813 restoring courses in 2.6.1 very slow

          • Minor - Minor loss of function where workaround is possible
          • Closed
          is blocked by

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-40538 cachestore_static, cachestore_session: array_key_exists slow

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Improvement - An enhancement to an existing Moodle feature. MDL-40677 Implement maxsize support on cache stores where it would be useful.

          • Minor - Minor loss of function where workaround is possible
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents Moodle from functioning correctly. MDL-43041 Can not restore from Moodle 2.5.1 backup file (with 1479 questions) to Moodle 2.6 even after waiting for 6 hours

          • Minor - Minor loss of function where workaround is possible
          • Closed
          will be (partly) resolved by

          Sub-task - Issues are sometimes broken into multiple sub-tasks. MDL-49734 Develop backup/restore ID mapping cache

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Improvement - An enhancement to an existing Moodle feature. MDL-40793 Allow profiling comparisons with more than one previous run

          • Minor - Minor loss of function where workaround is possible
          • Closed

          Activity

            People

              mr-russ Russell Smith
              mr-russ Russell Smith
              Adrian Greeve, David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo, Matteo Scaramuccia, David Woloszyn, Huong Nguyen, Jake Dallimore, Meirza, Michael Hawkins, Raquel Ortega, Safat Shahin, Stevani Andolo
              Votes:
              12 Vote for this issue
              Watchers:
              23 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: