04 2016 档案

How to migrate from VMware and Hyper-V to OpenStack
摘要：http://superuser.openstack.org/articles/how-to-migrate-from-vmware-and-hyper-v-to-openstack Introduction I migrated >120 VMware virtual machines (Linu 阅读全文

posted @ 2016-04-22 12:19 allcloud 阅读(400) 评论(0) 推荐(0)

在openrc中从keystone V2 到 V3
摘要：#!/bin/bash if [ "$#" -ne 1 ] then echo "Usage $0 " exit 1 fi . $1 NEW_OS_AUTH_URL=`echo $OS_AUTH_URL | sed 's!v2.0!v3!'` cat << EOF export OS_AUTH_URL=$NEW_OS_AUTH_URL export OS_USERNAME=... 阅读全文

posted @ 2016-04-22 12:05 allcloud 阅读(236) 评论(0) 推荐(0)

Ceilometer Polling Performance Improvement
摘要：Ceilometer的数据采集agent会定期对nova/keystone/neutron/cinder等服务调用其API的获取信息，默认是20秒一次， 这在大规模部署中会对OpenStack服务节点造成很大压力，增加节点CPU负载。 在Ceilometer的L版本中有一个针对性的改进来cache住 阅读全文

posted @ 2016-04-22 11:18 allcloud 阅读(270) 评论(0) 推荐(0)

OpenStack for NFV applications: enabling Single Root I/O virtualization and PCI-Passthrough
摘要：NFV Without entering into the details of the NFV specifications, the goal in OpenStack is to optimize network, memory and CPU performance on the runni 阅读全文

posted @ 2016-04-22 10:28 allcloud 阅读(313) 评论(0) 推荐(0)

Open Daylight integration with OpenStack: a tutorial
摘要：http://superuser.openstack.org/articles/open-daylight-integration-with-openstack-a-tutorial 1. AssumptionBefore getting started, I assume the reader u 阅读全文

posted @ 2016-04-22 10:02 allcloud 阅读(505) 评论(0) 推荐(0)

aodh M版本新特性 - queue between alarm evaluator and alarm notifier
摘要：之前alarm evaluator service and alarm notifier services之间的通信采用RPC的方式，消耗较大，增加work queue的方式可以获得更好的性能， 所谓work queue的方式就是把evaluator 的结果作为消息的payload发送给alarm： 阅读全文

posted @ 2016-04-18 14:22 allcloud 阅读(278) 评论(0) 推荐(0)

aodh M版本新特性 - Remove eventlet from Aodh in favour of threaded approach
摘要：在 Kilo版本, API WSGI application 可以有以下2种部署方式: As a Python command that runs a Werkzeug-based web server that is monkeypatched to use eventlet. As a WSGI 阅读全文

posted @ 2016-04-18 13:23 allcloud 阅读(319) 评论(0) 推荐(0)

Neutron新进展｜DragonFlow在Mitaka版本中的Roadmap
摘要：OpenStack网络在Mitaka版本中将有哪些新变化？1月11日到12日，DragonFlow的PTL——Eran Gampel，Kuryr的PTL——Gal Sagie，和他们的老大从以色列来到杭州，参加DragonFlow Meetup。UnitedStack有云的网络组同事苌智和康敬亭参与 阅读全文

posted @ 2016-04-11 09:22 allcloud 阅读(645) 评论(0) 推荐(0)

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