Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-15800

Scheduler for TTL index deletion windows

    XMLWordPrintable

Details

    • New Feature
    • Status: Closed
    • Minor - P4
    • Resolution: Duplicate
    • None
    • None
    • None
    • None

    Description

      Add the capability to schedule TTL index deletion, analogous to how we can schedule the cluster balancer.

      Use case: 9-5 systems that want to perform TTL deletion of old data outside of business hours to avoid additional performance overhead during busy periods.

      This can be approximated today by running a cron job to do something like the following, but it would be a nice-to-have in the database:

      • At start of TTL deletion window:

      db.runCommand({collMod: "collection-name",
                     index: {keyPattern: {ts:1},
                             expireAfterSeconds: <desired expiry age>}})

      • At end of TTL deletion window:

      db.runCommand({collMod: "collection-name",
                     index: {keyPattern: {ts:1},
                             expireAfterSeconds: <some very large value>}})

      Attachments

        Issue Links

          Activity

            People

              Unassigned Unassigned
              jon.rangel@mongodb.com Jon Rangel
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: