Description
============
Concurrent calls to DELETE os-floating-ips/floating-ip-id can cause neutronclient to raise
a neutronclient.common.exceptions.NotFound exception uncaught by Nova which in turn returns
a 500 Error.
Steps to reproduce
===================
Tested on a mitaka devstack :
- source openrc
- run this humble script :
FIP_ID=`nova floating-ip-create | grep public | awk '{print($2)}'`
TENANT_ID=`keystone token-get | grep " tenant_id " | awk '{print($4)}'`
TOKEN_ID=`keystone token-get | grep " id " | awk '{print($4)}'`
curl -g -i -X DELETE http://127.0.0.1:8774/v2.1/$TENANT_ID/os-floating-ips/$FIP_ID -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: $TOKEN_ID"&
curl -g -i -X DELETE http://127.0.0.1:8774/v2.1/$TENANT_ID/os-floating-ips/$FIP_ID -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: $TOKEN_ID"&
curl -g -i -X DELETE http://127.0.0.1:8774/v2.1/$TENANT_ID/os-floating-ips/$FIP_ID -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: $TOKEN_ID"&
curl -g -i -X DELETE http://127.0.0.1:8774/v2.1/$TENANT_ID/os-floating-ips/$FIP_ID -H "User-Agent: python-novaclient" -H "Accept: application/json" -H "X-Auth-Token: $TOKEN_ID"
Expected result
================
First call to go trough should return a 202, and all other calls should probably return 404 or 409 if deletion is in progress but not 500.
Actual result
==============
Some calls to DELETE get a 500 Error response.
Fix proposed to branch: master
Review: https:/