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[Bug 1646394] [NEW] Slowness on access & security page due to calls to neutron/ports.json?tenant_id=XXXXX

 

Public bug reported:

When opening the access & security page in Horizon we experience some
extreme slowness for tenants with a large amount of instances (200+).

Looking at the debug logs the following calls take over 5 seconds:
https://neutron/v2.0/ports.json?tenant_id=XXXXXXXXX

This call is done twice for this page.

Since there are no interfaces shown on this page I am wondering why this call is being done at all.
Doing it twice makes the problem worse.

** Affects: horizon
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1646394

Title:
  Slowness on access & security page due to calls to
  neutron/ports.json?tenant_id=XXXXX

Status in OpenStack Dashboard (Horizon):
  New

Bug description:
  When opening the access & security page in Horizon we experience some
  extreme slowness for tenants with a large amount of instances (200+).

  Looking at the debug logs the following calls take over 5 seconds:
  https://neutron/v2.0/ports.json?tenant_id=XXXXXXXXX

  This call is done twice for this page.

  Since there are no interfaces shown on this page I am wondering why this call is being done at all.
  Doing it twice makes the problem worse.

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