openstack
/
neutron
Code Issues Proposed changes

NSX: Correct default timeout params 

Previously, req_timeout and http_timeout were set to the same value
which is not correct. req_timeout is the total time limit for a cluster
request and  http_timeout is the time allowed before aborting a request on
an unresponsive controller. Since the default configuration allows 2
retries req_timeout should be double that of http_timeout because of this
this patch goes ahead and removes req_timeout as this should just be
http_timeout * retries.

Because prevouly req_timeout and http_timeout were the same this exposed
a corner case that when the nsx controller returned a 307 we would issue
the request against the redirected controller but in the case where the
session cookie had expire when the request was issued we would get a 401
response back and never retry the request. Now that the default values are
corrected this issue should no longer occur as the next time time we issue
the request we'll fetch a new auth cookie for the redirected controller.

This patch also bumps the timeout values to be higher. We've seen
more and more timeouts occur in our CI system largely because our
cloud is overloaded so increasing the default timeouts will *hopefully*
help reduce test failures.

DocImpact

Closes-bug: 1340969
Closes-bug: 1338846

Change-Id: Id7244cd4d9316931f4f7df1c3b41b3a894f2909a
This commit is contained in:
Aaron Rosen 2014-07-11 13:56:15 -07:00
parent 1cbb3b6e6a
commit 0b7a768730
15 changed files with 12 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
etc/neutron/plugins/vmware/nsx.ini
View File

@ -5,12 +5,8 @@
# Password for NSX controller
# nsx_password = admin
# Total time limit for a cluster request
# (including retries across different controllers)
# req_timeout = 30
# Time before aborting a request on an unresponsive controller
# http_timeout = 30
# Time before aborting a request on an unresponsive controller (Seconds)
# http_timeout = 75
# Maximum number of times a particular request should be retried
# retries = 2

8
neutron/plugins/vmware/api_client/client.py
View File

@ -35,12 +35,9 @@ class NsxApiClient(eventlet_client.EventletApiClient):
gen_timeout=base.GENERATION_ID_TIMEOUT,
use_https=True,
connect_timeout=base.DEFAULT_CONNECT_TIMEOUT,
request_timeout=30, http_timeout=10, retries=2, redirects=2):
http_timeout=75, retries=2, redirects=2):
'''Constructor. Adds the following:
:param request_timeout: all operations (including retries, redirects
from unresponsive controllers, etc) should finish within this
timeout.
:param http_timeout: how long to wait before aborting an
unresponsive controller (and allow for retries to another
controller in the cluster)
@ -53,7 +50,7 @@ class NsxApiClient(eventlet_client.EventletApiClient):
gen_timeout=gen_timeout, use_https=use_https,
connect_timeout=connect_timeout)
self._request_timeout = request_timeout
self._request_timeout = http_timeout * retries
self._http_timeout = http_timeout
self._retries = retries
self._redirects = redirects
@ -85,7 +82,6 @@ class NsxApiClient(eventlet_client.EventletApiClient):
g = eventlet_request.GenericRequestEventlet(
self, method, url, body, content_type, auto_login=True,
request_timeout=self._request_timeout,
http_timeout=self._http_timeout,
retries=self._retries, redirects=self._redirects)
g.start()

8
neutron/plugins/vmware/api_client/eventlet_request.py
View File

@ -48,7 +48,6 @@ class EventletApiRequest(request.ApiRequest):
def __init__(self, client_obj, url, method="GET", body=None,
headers=None,
request_timeout=request.DEFAULT_REQUEST_TIMEOUT,
retries=request.DEFAULT_RETRIES,
auto_login=True,
redirects=request.DEFAULT_REDIRECTS,
@ -59,7 +58,7 @@ class EventletApiRequest(request.ApiRequest):
self._method = method
self._body = body
self._headers = headers or {}
self._request_timeout = request_timeout
self._request_timeout = http_timeout * retries
self._retries = retries
self._auto_login = auto_login
self._redirects = redirects
@ -109,7 +108,7 @@ class EventletApiRequest(request.ApiRequest):
'''Return a copy of this request instance.'''
return EventletApiRequest(
self._api_client, self._url, self._method, self._body,
self._headers, self._request_timeout, self._retries,
self._headers, self._retries,
self._auto_login, self._redirects, self._http_timeout)
def _run(self):
@ -220,14 +219,13 @@ class GenericRequestEventlet(EventletApiRequest):
def __init__(self, client_obj, method, url, body, content_type,
auto_login=False,
request_timeout=request.DEFAULT_REQUEST_TIMEOUT,
http_timeout=request.DEFAULT_HTTP_TIMEOUT,
retries=request.DEFAULT_RETRIES,
redirects=request.DEFAULT_REDIRECTS):
headers = {"Content-Type": content_type}
super(GenericRequestEventlet, self).__init__(
client_obj, url, method, body, headers,
request_timeout=request_timeout, retries=retries,
retries=retries,
auto_login=auto_login, redirects=redirects,
http_timeout=http_timeout)

1
neutron/plugins/vmware/api_client/request.py
View File

@ -30,7 +30,6 @@ from neutron.plugins.vmware import api_client
LOG = logging.getLogger(__name__)
DEFAULT_REQUEST_TIMEOUT = 30
DEFAULT_HTTP_TIMEOUT = 30
DEFAULT_RETRIES = 2
DEFAULT_REDIRECTS = 2

1
neutron/plugins/vmware/check_nsx_config.py
View File

@ -100,7 +100,6 @@ def main():
print("\tmax_lp_per_bridged_ls: %s" % cfg.CONF.NSX.max_lp_per_bridged_ls)
print("\tmax_lp_per_overlay_ls: %s" % cfg.CONF.NSX.max_lp_per_overlay_ls)
print("----------------------- Cluster Options -----------------------")
print("\trequested_timeout: %s" % cfg.CONF.req_timeout)
print("\tretries: %s" % cfg.CONF.retries)
print("\tredirects: %s" % cfg.CONF.redirects)
print("\thttp_timeout: %s" % cfg.CONF.http_timeout)

5
neutron/plugins/vmware/common/config.py
View File

@ -110,11 +110,8 @@ connection_opts = [
deprecated_name='nvp_password',
secret=True,
help=_('Password for NSX controllers in this cluster')),
cfg.IntOpt('req_timeout',
default=30,
help=_('Total time limit for a cluster request')),
cfg.IntOpt('http_timeout',
default=30,
default=75,
help=_('Time before aborting a request')),
cfg.IntOpt('retries',
default=2,

1
neutron/plugins/vmware/common/nsx_utils.py
View File

@ -210,7 +210,6 @@ def create_nsx_cluster(cluster_opts, concurrent_connections, gen_timeout):
for ctrl in cluster.nsx_controllers]
cluster.api_client = client.NsxApiClient(
api_providers, cluster.nsx_user, cluster.nsx_password,
request_timeout=cluster.req_timeout,
http_timeout=cluster.http_timeout,
retries=cluster.retries,
redirects=cluster.redirects,

2
neutron/tests/unit/vmware/apiclient/test_api_eventlet_request.py
View File

@ -68,7 +68,7 @@ class ApiRequestEventletTest(base.BaseTestCase):
def test_apirequest_start(self):
for i in range(10):
a = request.EventletApiRequest(
self.client, self.url, request_timeout=0.1)
self.client, self.url)
a._handle_request = mock.Mock()
a.start()
eventlet.greenthread.sleep(0.1)

1
neutron/tests/unit/vmware/etc/nsx.ini.agentless.test
View File

@ -8,7 +8,6 @@ default_l3_gw_service_uuid = whatever
default_l2_gw_service_uuid = whatever
default_service_cluster_uuid = whatever
default_interface_name = whatever
req_timeout = 14
http_timeout = 13
redirects = 12
retries = 11

1
neutron/tests/unit/vmware/etc/nsx.ini.combined.test
View File

@ -8,7 +8,6 @@ default_l3_gw_service_uuid = whatever
default_l2_gw_service_uuid = whatever
default_service_cluster_uuid = whatever
default_interface_name = whatever
req_timeout = 14
http_timeout = 13
redirects = 12
retries = 11

1
neutron/tests/unit/vmware/etc/nsx.ini.full.test
View File

@ -7,7 +7,6 @@ nsx_password = bar
default_l3_gw_service_uuid = whatever
default_l2_gw_service_uuid = whatever
default_interface_name = whatever
req_timeout = 14
http_timeout = 13
redirects = 12
retries = 11

1
neutron/tests/unit/vmware/etc/nvp.ini.full.test
View File

@ -7,7 +7,6 @@ nvp_password = bar
default_l3_gw_service_uuid = whatever
default_l2_gw_service_uuid = whatever
default_interface_name = whatever
req_timeout = 4
http_timeout = 3
redirects = 2
retries = 2

4
neutron/tests/unit/vmware/nsxlib/base.py
View File

@ -47,7 +47,7 @@ class NsxlibTestCase(base.BaseTestCase):
self.fake_cluster.api_client = client.NsxApiClient(
('1.1.1.1', '999', True),
self.fake_cluster.nsx_user, self.fake_cluster.nsx_password,
self.fake_cluster.req_timeout, self.fake_cluster.http_timeout,
self.fake_cluster.http_timeout,
self.fake_cluster.retries, self.fake_cluster.redirects)
super(NsxlibTestCase, self).setUp()
@ -81,7 +81,7 @@ class NsxlibNegativeBaseTestCase(base.BaseTestCase):
self.fake_cluster.api_client = client.NsxApiClient(
('1.1.1.1', '999', True),
self.fake_cluster.nsx_user, self.fake_cluster.nsx_password,
self.fake_cluster.req_timeout, self.fake_cluster.http_timeout,
self.fake_cluster.http_timeout,
self.fake_cluster.retries, self.fake_cluster.redirects)
super(NsxlibNegativeBaseTestCase, self).setUp()

6
neutron/tests/unit/vmware/test_nsx_opts.py
View File

@ -45,7 +45,6 @@ class NSXClusterTest(base.BaseTestCase):
'default_l2_gw_service_uuid': uuidutils.generate_uuid(),
'nsx_user': 'foo',
'nsx_password': 'bar',
'req_timeout': 45,
'http_timeout': 25,
'retries': 7,
'redirects': 23,
@ -89,7 +88,6 @@ class ConfigurationTest(base.BaseTestCase):
self.assertEqual(cluster.nsx_password, 'bar')
def _assert_extra_options(self, cluster):
self.assertEqual(14, cluster.req_timeout)
self.assertEqual(13, cluster.http_timeout)
self.assertEqual(12, cluster.redirects)
self.assertEqual(11, cluster.retries)
@ -124,8 +122,7 @@ class ConfigurationTest(base.BaseTestCase):
self.assertIsNone(cfg.CONF.default_tz_uuid)
self.assertEqual('admin', cfg.CONF.nsx_user)
self.assertEqual('admin', cfg.CONF.nsx_password)
self.assertEqual(30, cfg.CONF.req_timeout)
self.assertEqual(30, cfg.CONF.http_timeout)
self.assertEqual(75, cfg.CONF.http_timeout)
self.assertEqual(2, cfg.CONF.retries)
self.assertEqual(2, cfg.CONF.redirects)
self.assertIsNone(cfg.CONF.nsx_controllers)
@ -247,7 +244,6 @@ class OldNVPConfigurationTest(base.BaseTestCase):
cluster = plugin.cluster
# Verify old nvp_* params have been fully parsed
self._assert_required_options(cluster)
self.assertEqual(4, cluster.req_timeout)
self.assertEqual(3, cluster.http_timeout)
self.assertEqual(2, cluster.retries)
self.assertEqual(2, cluster.redirects)

1
neutron/tests/unit/vmware/test_nsx_sync.py
View File

@ -282,7 +282,6 @@ class SyncTestCase(base.BaseTestCase):
self.fake_cluster.api_client = client.NsxApiClient(
('1.1.1.1', '999', True),
self.fake_cluster.nsx_user, self.fake_cluster.nsx_password,
request_timeout=self.fake_cluster.req_timeout,
http_timeout=self.fake_cluster.http_timeout,
retries=self.fake_cluster.retries,
redirects=self.fake_cluster.redirects)