Manager uses elastic-search scoring and display_name as default
primary and secondary sort order respectively. In a Manager cluster,
each Manager has its own elastic-search instance, Thus the relevance
of scoring might differ due to different parameters, so pagination
result may differ too.
When NCP does a multi-page search, like retrieving all existing
logical ports in a scale setup, Manager VIP could be served by
different Managers during the search. Due to the above reason,
some entries could be missing or duplicated in the query result.
This patch appends "sort_by=id" in search url, therefore all
Managers could return the same pagination results.
Change-Id: Id26cf0cbcdaebb965890d5ee7934c11da056b128
6c7d58559f