Uploaded image for project: 'Documentation'
  1. Documentation
  2. DOCS-1393

Migrate three config servers

    XMLWordPrintableJSON

Details

    • Icon: Task Task
    • Resolution: Duplicate
    • Icon: Major - P3 Major - P3
    • None
    • None
    • None
    • None

    Description

      Currently we have a process for migrating a single config server.

      We should document a process for migrating three config servers at once via change of CNAME. Say in the event of changing instance sizes.

      This process can potentially cause people problems if they clone the config servers. Eg, Old Hosts A, B and C. New hosts A1, B1, C1

      Shutdown A,
      Clone data from A to A1, B1 and C1
      Change CNAME for A to A1
      Start A1

      You now have all three config servers up temporarily which can lead to writes being on B and C, but not on B1 and C1

      As this is something people may wish to do we should document a working process for them.

      Attachments

        Activity

          People

            Unassigned Unassigned
            david.hows David Hows
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:
              10 years, 44 weeks, 3 days ago