Move eventlet monkey patch code

Eventlet monkey patching is not recommended on top level __init__ [1],
because Apache WSGI module uses own concurrency model [2] and API
service under Apache should be runned without eventlet. This patch
moves eventlet monkey patching code to ironic.cmd module __init__
(like in nova).

[1] https://specs.openstack.org/openstack/openstack-specs/specs/eventlet-best-practices.html
[2] http://modwsgi.readthedocs.io/en/develop/user-guides/processes-and-threading.html

Closes-Bug: 1608252
Change-Id: I887a06566dcc2f09875f975f1e12ae4ff75fd348
This commit is contained in:
Yuriy Zveryanskyy 2017-03-02 12:01:36 +02:00
parent fec55f4a11
commit 556b1d0871
3 changed files with 13 additions and 22 deletions

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@ -1,22 +0,0 @@
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import os
os.environ['EVENTLET_NO_GREENDNS'] = 'yes'
import eventlet
eventlet.monkey_patch(os=False)

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@ -13,6 +13,16 @@
# License for the specific language governing permissions and limitations
# under the License.
# NOTE(yuriyz): Do eventlet monkey patching here, not in ironic/__init__.py
# This allows API service runs under Apache.
import os
os.environ['EVENTLET_NO_GREENDNS'] = 'yes'
import eventlet
eventlet.monkey_patch(os=False)
import oslo_i18n as i18n
i18n.install('ironic')

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@ -0,0 +1,3 @@
---
fixes:
- Fix issue with multiple threads when ironic API service runs under Apache.