osprofiler fails when it is configed with mongon

[XiaojueGuan]

ERROR openstack_dashboard.api.rest.utils error invoking apiclient
Traceback (most recent call last):
  File "/Users/robot/code/Openstack/Rep/horizon/openstack_dashboard/api/rest/utils.py", line 128, in _wrapped
    data = function(self, request, *args, **kw)
  File "/Users/robot/code/Openstack/Rep/horizon/openstack_dashboard/contrib/developer/profiler/views.py", line 40, in get
    return api.list_traces(request)
  File "/Users/robot/code/Openstack/Rep/horizon/openstack_dashboard/contrib/developer/profiler/api.py", line 84, in list_traces
    traces = engine.list_traces(fields)
  File "/Users/robot/code/Openstack/Rep/horizon/.tox/venv/lib/python3.7/site-packages/osprofiler/drivers/mongodb.py", line 83, in list_traces
    fields = set(fields or self.default_trace_fields)
  File "/Users/robot/code/Openstack/Rep/horizon/.tox/venv/lib/python3.7/site-packages/pymongo/collection.py", line 929, in find
    return Cursor(self, *args, **kwargs)
  File "/Users/robot/code/Openstack/Rep/horizon/.tox/venv/lib/python3.7/site-packages/pymongo/cursor.py", line 119, in __init__
    validate_is_mapping("filter", spec)
  File "/Users/robot/code/Openstack/Rep/horizon/.tox/venv/lib/python3.7/site-packages/pymongo/common.py", line 348, in validate_is_mapping
    "collections.Mapping" % (option,))
TypeError: filter must be an instance of dict, bson.son.SON, or other type that inherits from collections.Mapping

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/656929

[XiaojueGuan (xiaojuegaun)]

https://github.com/openstack/osprofiler/blob/master/test-requirements.txt
the minimum version of pymongo osprofile required is 3.0.2
test with this version in python2.5 and python 3.7 both failed

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/656929
Committed: https://git.openstack.org/cgit/openstack/osprofiler/commit/?id=5386d7c40cdaef39a08b69fcce96467a5396c6ee
Submitter: Zuul
Branch: master

commit 5386d7c40cdaef39a08b69fcce96467a5396c6ee
Author: XiaojueGuan <email address hidden>
Date: Fri May 3 15:40:04 2019 +0800

    change function list_traces of mongodb module

    osprofiler fails when it is configed with mongon.
    the minimum version of pymongo osprofile requires is 3.0.2
    and in this version and after when function list_traces is
    is invoked error will show described in the bug issue.

    Change-Id: I2510660c36aaa89117a97c67b4cb61fa3dade14d
    Closes-Bug: 1827480

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/osprofiler 2.8.0 release.