From what I'm seeing this started on 3/2:
http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22ObjectDeletedError%3A%20Instance%5C%22%20AND%20message%3A%5C%22PortBinding%20at%5C%22%20AND%20message%3A%5C%22has%20been%20deleted%2C%20or%20its%20row%20is%20otherwise%20not%20present.%5C%22%20AND%20tags%3A%5C%22screen-q-svc.txt%5C%22&from=10d
From what I'm seeing this started on 3/2:
http:// logstash. openstack. org/#dashboard/ file/logstash. json?query= message% 3A%5C%22ObjectD eletedError% 3A%20Instance% 5C%22%20AND% 20message% 3A%5C%22PortBin ding%20at% 5C%22%20AND% 20message% 3A%5C%22has% 20been% 20deleted% 2C%20or% 20its%20row% 20is%20otherwis e%20not% 20present. %5C%22% 20AND%20tags% 3A%5C%22screen- q-svc.txt% 5C%22&from= 10d