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[Ihtisham ul Haq <2060054@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

With ML2/OVN if one create about 1000 of static routes on a router, the
addition takes <10seconds but deletion of those static routes takes
about ~8 minutes.

That is because neutron sends a separate deletion command to OVN for
each of the static route, which is very inefficient, instead of doing it
in a single transaction.

Neutron version: latest/main branch
Deployment tool: devstack

** Affects: neutron
     Importance: Undecided
     Assignee: Ihtisham ul Haq (iulhaq)
         Status: New


** Tags: ovn

** Description changed:

  With ML2/OVN if one create about 1000 of static routes on a router, the
  addition takes <10seconds but deletion of those static routes takes
  about ~8 minutes.
  
  That is because neutron sends a separate deletion command to OVN for
  each of the static route, which is very inefficient, instead of doing it
  in a single transaction.
  
  Neutron version: latest/main branch
- Devstack
+ Deployment tool: devstack

** Changed in: neutron
     Assignee: (unassigned) => Ihtisham ul Haq (iulhaq)

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https://bugs.launchpad.net/bugs/2060054

Title:
  Slow deletion of high number of static routes on router with ML2/OVN

Status in neutron:
  New

Bug description:
  With ML2/OVN if one create about 1000 of static routes on a router,
  the addition takes <10seconds but deletion of those static routes
  takes about ~8 minutes.

  That is because neutron sends a separate deletion command to OVN for
  each of the static route, which is very inefficient, instead of doing
  it in a single transaction.

  Neutron version: latest/main branch
  Deployment tool: devstack

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