Tweak the 'load balancing' algorithm
In order to reduce contention we randomly skipped jobs, but this
caused many jobs to end up stopping early. Now instead we keep on
going until we time out (also increased the chance of doing work).
Patch by: Sverre Rabbelier
#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# 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.
#
"""Stub version of the capability service API, everything is always enabled."""
from google.appengine.api import apiproxy_stub
from google.appengine.api import capabilities
IsEnabledRequest = capabilities.IsEnabledRequest
IsEnabledResponse = capabilities.IsEnabledResponse
CapabilityConfig = capabilities.CapabilityConfig
class CapabilityServiceStub(apiproxy_stub.APIProxyStub):
"""Python only capability service stub."""
def __init__(self, service_name='capability_service'):
"""Constructor.
Args:
service_name: Service name expected for all calls.
"""
super(CapabilityServiceStub, self).__init__(service_name)
def _Dynamic_IsEnabled(self, request, response):
"""Implementation of CapabilityService::IsEnabled().
Args:
request: An IsEnabledRequest.
response: An IsEnabledResponse.
"""
response.set_summary_status(IsEnabledResponse.ENABLED)
default_config = response.add_config()
default_config.set_package('')
default_config.set_capability('')
default_config.set_status(CapabilityConfig.ENABLED)