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[Launchpad Bug Tracker <1535628@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Dashboard (Horizon) because there has been no
activity for 60 days.]

** Changed in: horizon
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1535628

Title:
  Load drop-down tenant list via AJAX

Status in OpenStack Dashboard (Horizon):
  Expired

Bug description:
  I found a performance issue login in Horizon with Admin user.

  If in your OpenStack cloud you have a lot of tenants, like > 1500,
  when you try to login Horizon using Admin credentials it takes a lot
  of time to load the main web page... Even it could rise a "time
  exception" error.

  This is because, when you login with Admin credential, the drop-down
  tenant list is gonna fill in with ALL tenants in the system. If
  OpenStack has a lot, this load is very high and it takes too much
  time.

  My proposal is: load the dropdown tenant list in asynchronous way. More specific:
  - Login Horizon with Admin
  - The drop-down tenant list shows "Admin" tenant as selected tenant, as it does now.
  - Only when you click in the drop-down list, the request to get all tenants, should be launched.

  Any thoughts or comments?

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