Deleting a non-existing member deletes the actual member

well this is a weird one

We were able to replicate the bug

The bug is in LBassV2 and not in Octavia

The bug is in the filtering method that lists the members::

It doesn't matter what you set for ID you get the list of memebrs::

fields=id&name=test will give you the entire list of members

stack@garda12 [1991] ~/devstack (master * u-522)
$ curl -g -i -X GET "http://172.25.8.83:9696/v2.0/lbaas/pools/04c633fc-a707-4646-90b4-4809bd4b2e9b/members.json?fields=id&name=test" -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: 91e4fa9eaa3d407fb1f91ddb57ee4ce7" HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Content-Length: 377
X-Openstack-Request-Id: req-0770140a-d1f7-49cc-9262-4f1723df94b4
Date: Thu, 14 Jan 2016 23:00:17 GMT

{"members": [{"weight": 1, "admin_state_up": true, "subnet_id": "47e7e14c-5188-4c27-8bc6-e130e82f6215", "address": "10.0.0.4", "protocol_port": 80, "id": "8e43edb3-d216-4d2c-b697-adec6c3ac34c"}, {"weight": 1, "admin_state_up": true, "subnet_id": "47e7e14c-5188-4c27-8bc6-e130e82f6215", "address": "10.0.0.5", "protocol_port": 80, "id": "a1cb5009-4ce6-4464-93b9-c1cd9cba5071"}]}
stack@garda12 [1992] ~/devstack (master * u-522)
$

The bug was fixed in LBaasV2 during November / December 2015 ... refreshing environment to latest LBaasV2 version to validate that the bug is invalid.

Exposing with the latest version of Neutron-lbaas (and latest octavia and neutrun) and the behavior was fixed. We get
error message as expected (Unable to find member with name '0b02a6cb-a669-422b-8e3e-65cfa9697c12')

More info from running ::

 neutron lbaas-member-delete 0b02a6cb-a669-422b-8e3e-65cfa9697c12 5dfefe90-0a67-4a9f-85e5-227518ccfecc --debug
(the "fields=id&name=" command returns an empty list as required)

DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://172.25.8.83:9696/v2.0/lbaas/pools/5dfefe90-0a67-4a9f-85e5-227518ccfecc/members.json?fields=id&id=0b02a6cb-a669-422b-8e3e-65cfa9697c12 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}09ef620ce4ad84f17d804eb11f89b1c09a97f623"
DEBUG: keystoneclient.session RESP: [200] date: Fri, 15 Jan 2016 16:16:52 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 15 x-openstack-request-id: req-0f60a614-59a9-49e4-b18b-c268d8e453fd
RESP BODY: {"members": []}

DEBUG: keystoneclient.session REQ: curl -g -i -X GET http://172.25.8.83:9696/v2.0/lbaas/pools/5dfefe90-0a67-4a9f-85e5-227518ccfecc/members.json?fields=id&name=0b02a6cb-a669-422b-8e3e-65cfa9697c12 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}09ef620ce4ad84f17d804eb11f89b1c09a97f623"
DEBUG: keystoneclient.session RESP: [200] date: Fri, 15 Jan 2016 16:16:52 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 15 x-openstack-request-id: req-c9bd7497-0b5c-424a-9c63-c86d463d4b16
RESP BODY: {"members": []}

This is an invalid bug for latest version of octavia and neutron-lbaas