yahoo-eng-team team mailing list archive

[Kevin Benton <1437131@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

get_subnet becomes slow with large numbers of ip availability ranges.[1]
This plagues anything else that calls get_subnet or get_subnets, which
is lots of stuff.


1.  $ time neutron subnet-show 9f4d3afa-5e13-4031-a24e-923adf36efb1
+-------------------+--------------------------------------------+
| Field             | Value                                      |
+-------------------+--------------------------------------------+
| allocation_pools  | {"start": "0.0.0.2", "end": "0.0.255.253"} |
| cidr              | 0.0.0.0/16                                 |
| dns_nameservers   |                                            |
| enable_dhcp       | True                                       |
| gateway_ip        | 0.0.0.1                                    |
| host_routes       |                                            |
| id                | 9f4d3afa-5e13-4031-a24e-923adf36efb1       |
| ip_version        | 4                                          |
| ipv6_address_mode |                                            |
| ipv6_ra_mode      |                                            |
| name              |                                            |
| network_id        | b316a86e-1582-4b56-bbc1-d68dd6635ac9       |
| tenant_id         | dcbae871d5bd419ea3c17cfb89e8a9c7           |
+-------------------+--------------------------------------------+

real	0m4.307s
user	0m0.353s
sys	0m0.074s

** Affects: neutron
     Importance: Undecided
     Assignee: Kevin Benton (kevinbenton)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Kevin Benton (kevinbenton)

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https://bugs.launchpad.net/bugs/1437131

Title:
  neutron get_subnet is slow

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  get_subnet becomes slow with large numbers of ip availability
  ranges.[1] This plagues anything else that calls get_subnet or
  get_subnets, which is lots of stuff.


  
  1.  $ time neutron subnet-show 9f4d3afa-5e13-4031-a24e-923adf36efb1
  +-------------------+--------------------------------------------+
  | Field             | Value                                      |
  +-------------------+--------------------------------------------+
  | allocation_pools  | {"start": "0.0.0.2", "end": "0.0.255.253"} |
  | cidr              | 0.0.0.0/16                                 |
  | dns_nameservers   |                                            |
  | enable_dhcp       | True                                       |
  | gateway_ip        | 0.0.0.1                                    |
  | host_routes       |                                            |
  | id                | 9f4d3afa-5e13-4031-a24e-923adf36efb1       |
  | ip_version        | 4                                          |
  | ipv6_address_mode |                                            |
  | ipv6_ra_mode      |                                            |
  | name              |                                            |
  | network_id        | b316a86e-1582-4b56-bbc1-d68dd6635ac9       |
  | tenant_id         | dcbae871d5bd419ea3c17cfb89e8a9c7           |
  +-------------------+--------------------------------------------+

  real	0m4.307s
  user	0m0.353s
  sys	0m0.074s

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