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{{DISPLAYTITLE:Juno更新日志}}<languages /> [[Category:Juno|Release Note]] [[Category:Release Note|Juno]] = OpenStack 2014.2 (Juno) Release Notes = <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> __TOC__ </div> == 升级提示 == * simplejson安装包作为大多数项目的可选的依赖,并没有列在所有项目的requirements.txt文件中。然而,如果你想使用他,比如在RHEL 6上的python 2.6上获得更好的性能,你需要安装高于2.2.0版本的simplejson。详情请参考:https://bugs.launchpad.net/oslo-incubator/+bug/1361230 == OpenStack对象存储(Swift) == === 新功能 === Juno整合的更新包括三个版本的OpenStack的Swift:2.0.0,2.1.0和2.2.0。这些版本更新的日志请参阅:https://github.com/openstack/swift/blob/2.2.0.rc1/CHANGELOG#L1-L173。相信更新情况请参考以上文档。 以下是重要的更新内容。请阅读更新日志和相关文档。 * 存储策略 * 支持Keystone v3 * 服务端账号到账号(account-to-account)复制 * 当增加一个新的服务器(server),区域(zone)或者地域(region)时更合理分区布局 * 使用splice()实现零拷贝(Zero-copy)GET响应 * 并发对象审计 === 已知问题 === * 无 === 升级提示 === 像往常一样,你可以零停机时间升级你的Swift集群,不影响最终用户。升级前请参考样例配置文件和文档。 * 这里有一些日志方面的更新需要提一下。在所有情况中,正常的日志进程不会受到影响。 ** 存储节点(account, container, object)日志中会将进程的PID输出在日志每一行的末端。 ** Object守护进程现在使用他们进程的全名作为用户代理(user-agent)标识(例如obj现在替换为object)。 * 一旦额外的存储策略被激活,回退到Swift 预览版2.0.0会引起被使用的附加存储策略失效。 * 作为最终升级的一部分,更新Swift默认端口成为一个非IANA分配(non-IANA-assigned)的范围,bind_port现在是必须设定的。已经显示的设置了该端口的用户不会受到影响。然而,如果你还没有设置该端口,作为升级的一个部分,请确保你所有的*_server.conf中包含bind_port设置,并且匹配你的ring。 * 注意:新的存储策略包含了一个新的守护进程,container-reconciler。 * TempURL默认允许支持POST和DELETE。这就意味着可以为这些动作创建tempurls。而且不会影响现有的tempurls。 * 完整的更新,不推荐使用的或者被删除的Swift选项列表,可以在这里看到:http://docs.openstack.org/trunk/config-reference/content/swift-conf-changes-master.html == OpenStack 计算服务(Nova) == ===实例功能=== * 在实例拯救中(rescue),允许用户使用一个特定的镜像,而并非原始镜像。[https://blueprints.launchpad.net/nova/+spec/allow-image-to-be-specified-during-rescue launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/allow-image-to-be-specified-during-rescue specification] * 允许镜像指定config drive[https://blueprints.launchpad.net/nova/+spec/config-drive-image-property launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/config-drive-image-property specification] * 用户和管理员可以通过Flavor控制虚拟机CPU的拓扑(核数和vCPU个数配置)。[https://blueprints.launchpad.net/nova/+spec/virt-driver-vcpu-topology launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/virt-driver-vcpu-topology specification] * 在实例拯救中(Rescue)挂载所有的本地盘。[https://blueprints.launchpad.net/nova/+spec/rescue-attach-all-disks launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/rescue-attach-all-disks specification] ===网络=== * 改善nova-network代码,允许每一个网络单独配置。[https://blueprints.launchpad.net/nova/+spec/better-support-for-multiple-networks launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/better-support-for-multiple-networks specification] * 允许开发人员增加钩子(hooks),如果一旦实例的网络发生改变,立即得到通知。[https://blueprints.launchpad.net/nova/+spec/instance-network-info-hook launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/instance-network-info-hook specification] * 允许Nova实例使用Neutron SR-IOV端口启动。[https://blueprints.launchpad.net/nova/+spec/pci-passthrough-sriov launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/pci-passthrough-sriov specification] * 允许实例添加同一个网络内的多块网卡。[https://blueprints.launchpad.net/nova/+spec/multiple-if-1-net launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/nfv-multiple-if-1-net specification] ===调度=== * 可扩展的资源跟踪。Nova中资源跟踪的代码是hard code,这个更新使这个功能可扩展,允许增加新的插件支持在调度中跟踪新的类型的资源。[https://blueprints.launchpad.net/nova/+spec/extensible-resource-tracking launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/extensible-resource-tracking specification] * 支持整个host(虚拟机)的撤离(evacuated,实在没有太贴切的中文翻译,就是把虚拟机在其他的计算节点重新启动起来),但是需要经过scheduler为实例重新选择目标主机。[https://blueprints.launchpad.net/nova/+spec/find-host-and-evacuate-instance launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/find-host-and-evacuate-instance specification] * scheduler过滤器中支持host集合。launchpad:[https://blueprints.launchpad.net/nova/+spec/per-aggregate-disk-allocation-ratio disk]; [https://blueprints.launchpad.net/nova/+spec/per-aggregate-max-instances-per-host instances]; 和[https://blueprints.launchpad.net/nova/+spec/per-aggregate-max-io-ops-per-host IO ops] [http://specs.openstack.org/openstack/nova-specs/specs/juno/per-aggregate-filters specification] ===其他=== * Nova中支持i18n,在Oslo i18n中开启lazy翻译支持,更新Nova适配这个限制并添加可翻译的字段。[https://blueprints.launchpad.net/nova/+spec/i18n-enablement launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/i18n-enablement specification] * 允许配置使用slave数据库作为定时任务的sql查询来降低负载。[https://blueprints.launchpad.net/nova/+spec/juno-slaveification launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/juno-slaveification specification] * 只有在Host状态变化时才更新数据中的状态,替换之前的每60秒一次。[https://blueprints.launchpad.net/nova/+spec/on-demand-compute-update launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/on-demand-compute-update specification] * 在虚拟化的列表API中返回状态信息。[https://blueprints.launchpad.net/nova/+spec/return-status-for-hypervisor-node launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/return-status-for-hypervisor-node specification] * 允许API调用者在过滤服务状态时,同时传入大于一种以上的状态。[https://blueprints.launchpad.net/nova/+spec/servers-list-support-multi-status launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/servers-list-support-multi-status specification] * 配额中增加用户可以创建服务器组的限制。[https://blueprints.launchpad.net/nova/+spec/server-group-quotas launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/server-group-quotas specification] ===虚拟化驱动新增功能=== ====Hyper-V==== * 支持vhdx差异镜像。[https://blueprints.launchpad.net/nova/+spec/add-differencing-vhdx-resize-support launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/add-differencing-vhdx-resize-support specification] * 支持控制台串口日志。[https://blueprints.launchpad.net/nova/+spec/hyper-v-console-log launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/hyper-v-console-log specification] * 支持软重启。[https://blueprints.launchpad.net/nova/+spec/hyper-v-soft-reboot launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/hyper-v-soft-reboot specification] ====Ironic==== * 增加了Ironice驱动. [https://blueprints.launchpad.net/nova/+spec/add-ironic-driver launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/add-ironic-driver specification] ====libvirt==== * 在新的libivrt上,优化获取实例列表的性能。 [https://blueprints.launchpad.net/nova/+spec/libvirt-domain-listing-speedup launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/libvirt-domain-listing-speedup specification] * 允许为基于网络的磁盘做快照。[https://blueprints.launchpad.net/nova/+spec/libvirt-volume-snap-network-disk launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/libvirt-volume-snap-network-disk specification] * 为Ceilometer开启qemu balloon统计。[https://blueprints.launchpad.net/nova/+spec/enabled-qemu-memballoon-stats launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/enabled-qemu-memballoon-stats specification] * 支持退还未使用的磁盘块到底层存储系统。[https://blueprints.launchpad.net/nova/+spec/libvirt-disk-discard-option launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/libvirt-disk-discard-option specification] * 实例的Meta-data信息现在存储在libvirt的domain xml中。这有利于系统管理员排查问题。[https://blueprints.launchpad.net/nova/+spec/libvirt-driver-domain-metadata launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/libvirt-driver-domain-metadata specification] * 支持LXC容器的命名空间。[https://blueprints.launchpad.net/nova/+spec/libvirt-lxc-user-namespaces launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/libvirt-lxc-user-namespaces specification] * 支持RBD的磁盘Copy-on-write复制。[https://blueprints.launchpad.net/nova/+spec/rbd-clone-image-handler launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/rbd-clone-image-handler specification] * 开放交互式串口。 [https://blueprints.launchpad.net/nova/+spec/serial-ports launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/serial-ports specification] * 允许控制在关闭物理机时同时关闭虚拟机。[https://blueprints.launchpad.net/nova/+spec/user-defined-shutdown launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/user-defined-shutdown specification] * 提供智能NUMA节点配置。[https://blueprints.launchpad.net/nova/+spec/virt-driver-numa-placement launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/virt-driver-numa-placement specification] ====vmware==== * 使用oslo中的vmware library替代vmware驱动中的方法。[https://blueprints.launchpad.net/nova/+spec/use-oslo-vmware launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/use-oslo-vmware specification] * 支持vmware实例的网络接口热插拔。[https://blueprints.launchpad.net/nova/+spec/vmware-hot-plug launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/vmware-hot-plug specification] * 重构了vmware驱动中spawn方法,使之更容易维护。这个工作是内部的,在这里提及的目的是这个改动很明显的增强了VMWare驱动的支持力度。[https://blueprints.launchpad.net/nova/+spec/vmware-spawn-refactor launchpad] [http://specs.openstack.org/openstack/nova-specs/specs/juno/vmware-spawn-refactor specification] === 已知问题 === * When using libvirt, live snapshots are effectively disabled, due to this difficult-to-reproduce bug: https://bugs.launchpad.net/nova/+bug/1334398 (https://review.openstack.org/#/c/102643/) === Upgrade Notes === * A list of all updated, deprecated or removed options in Nova can be found at: http://docs.openstack.org/trunk/config-reference/content/nova-conf-changes-master.html * The nova-manage flavor subcommand is deprecated in Juno and will be removed in the 2015.1 (K) release: https://review.openstack.org/#/c/86122/ * https://review.openstack.org/#/c/102212/ * Minimum required libvirt version is now 0.9.11: https://review.openstack.org/#/c/58494/ * Nova is now supporting the [https://review.openstack.org/#/c/43986/ Cinder V2 API]. The Cinder V1 API is deprecated in Juno and Nova will switch over to Cinder V2 by default in the "L" release. * Debug log output in python-novaclient has [https://review.openstack.org/#/c/98443/ changed slightly] to improve readability. The sha1 hash of the keystone token is now printed instead of the token itself - greatly shortening the amount of content being printed while still retaining the ability to determine token mismatch scenarios. In addition, some extra '\n' characters that were being added are removed. ''Double-check any log parsers!'' * libvirt.volume_drivers config param for nova.conf is deprecated, to be removed in the Lxxxx release. In general, this should affect only a small number of developers working on drivers. If this is you, the recommended approach is to continue your work inside a nova tree. == OpenStack Image Service (Glance) == === Key New Features === * Asynchronous Processing * Pull of glance.store into its own library * [http://docs.openstack.org/developer/glance/metadefs-concepts.html Metadata Definitions Catalog] * Restricted policy for downloading images. * Enhanced Scrubber service allows single instance services multiple glance-api servers cross nodes. === 已知问题 === === Upgrade Notes === * A list of all updated, deprecated or removed options in Glance can be found at: http://docs.openstack.org/trunk/config-reference/content/glance-conf-changes-master.html * The ability to upload a public image is now admin-only by default. To continue to use the previous behaviour, edit the publicize_image flag in etc/policy.json to remove the role restriction. * The requirement and check on UTF-8 charset for DB tables is enforced, operator need to migration tables and existing data to UTF-8 manually if glance-manage complains it during the sync. * glance workers will now be equal to the number of CPUs available by default if not explicitly specified in glance-api.conf and/or glance-registry.conf ** There is no upgrade impact to glance-api workers since glance-api.conf previously hard-coded the workers value to 1 so anyone upgrading to tihs will still get whatever value was set in glance-api.conf prior to this change. There is an upgrade impact to the glance-registry workers since glance-registry.conf did not hard-code the workers value to 1 before this change. So anyone upgrading to this change that does not have workers specified in glance-registry.conf will now be running multiple workers by default when they restart the glance registry service. == OpenStack面板(Horizon) == === 新功能 === ==== Sahara ==== The OpenStack Data Processing project (Sahara) was formally included into the integrated release in Juno and Horizon includes broad support for managing your data processing. You can specify and build clusters to utilize several data types with user specified jobs while tracking the progress of those jobs. ==== Neutron Features ==== Neutron added several new features in Juno, including: * DVR (Distributed Virtual Routing) * L3 HA support * IPv6 subnet modes Horizon在Juno版本中提供对这些新功能的支持。这些功能在软件定义网络中提供更灵活的功能。 Neutron中之前存在的MAC地址学习的扩展功能,现在已经在Horizon里支持了。 ==== Glance Features ==== In Juno, Glance introduced the ability to manage a catalog of metadata definitions where users can register the metadata definitions to be used on various resource types including images, aggregates, and flavors. Support for viewing and editing the assignment of these metadata tags is included in Horizon. ==== Cinder Features ==== In a continued effort to provide fuller API support, several features supported by Cinder are now supported in Horizon in the Juno release. Users can now utilize swift to store volume backups from Horizon as well as restore volumes from these backups. 在Juno的Horizon中新增加的之前不支持的Cinder API功能包括: * 允许重设snapshot的状态 * 允许重设volume的状态 * 支持上传为镜像 * 卷类型重定义 * 支持Qos(服务质量) ==== Trove ==== Trove supports potentially using numerous different datastores, e.g., mysql, redis, mongodb. Users can now select from the list of datastores supported by the cloud operator when creating their database instances. 另外一个功能是从数据库增量备份中进行恢复。 为了改善对Neutron的支持,当创建一个数据库实例时,用户能够指定网卡(NIC),用户可以直接访问实例。 ==== Nova ==== The new nova instance actions panel provides a list of all actions taken on all instances in the current project allowing users to view resulting errors or actions taken by other users on those instances. Administrators now have the ability to evacuate instances off hypervisors which can aid in system maintenance by providing a mechanism to migrate all instances to other hosts. ==== Improved Plugin Support ==== The plugin system in Horizon continued to improve in the Juno release. Some of those improvements: * Support for adding plugin specific AngularJS modules * Support for adding static files, e.g., CSS, JS, images * Ability to add exceptions * Fixing ordering issues * Numerous other bug fixes ==== Enhanced RBAC support ==== In an ongoing effort to support richer role based access control (RBAC) in Horizon, the views for several more services were enhanced with RBAC checks to determine user access to actions. The newly supported services are compute, network and orchestration. These changes allow operators to implement finer grained access control than just "member" and "admin". 鉴权面板(域、项目、用户、角色、组)已经支持RBAC的页面控制。鉴权面板已经从管理员面板到独立的“鉴权”控制面板,可访问性取决于独立的策略控制。这是支持更细粒度权限控制的第一步,将项目和管理员面板中重复的内容合并。 ==== UX Changes ==== In Juno, Horizon transitioned to utilizing Bootstrap v3. Horizon had been pinned to an older version of Bootstrap for several releases. This change now allows Horizon to pick up numerous bug fixes and overall improvements in the Bootstrap framework. The look and feel remains mainly consistent with the Havana release. ==== JavaScript Libraries Extracted ==== As part of the Horizon team's ongoing efforts to split the repository into more logical pieces, all the 3rd party JavaScript libraries that Horizon depends on have been removed from the Horizon code base and python xstatic packages have been utilized instead. The xstatic format allows for easy consumption by the Django framework Horizon is built on. Now JavaScript libraries are utilized like any other python dependency in Horizon. ==== Conversion from LESS to SCSS ==== The supported stylesheets in Horizon have been converted to utilize SCSS rather than LESS. The change was necessary due to a prevalent lack of support for LESS compilers in python. This change also allowed us to upgrade to Bootstrap 3, as parts of the Bootstrap 3 LESS stylesheets were not supported by existing python based LESS compilers. === 已知问题 === ==== Rendering issues in extensions ==== The conversion to utilizing Bootstrap v3 can cause content extensions written on top of Horizon to have rendering issues. Most of these are fixed by a simple CSS class name substitutions. These issues are primarily seen with buttons and panel content widths. ==== Online Compression ==== With the move to SCSS, there may be issues with utilizing online compression in non-DEBUG mode in Horizon. Offline compression continues to work as in previous releases. ==== Neutron L3 HA ==== The HA property is updateable in the UI, however, Neutron API does not allow the update operation because toggling HA support does not work. https://bugs.launchpad.net/horizon/+bug/1378525 === Upgrade Notes === * FLAVOR_EXTRA_KEYS setting deprecated. The use of this key has been replaced with direct calls to the nova and [http://docs.openstack.org/developer/glance/metadefs-concepts.html glance api] as appropriate. == OpenStack鉴权服务(Keystone) == === 新功能 === * Keystone现在有一个实验性功能[http://docs.openstack.org/developer/keystone/configure_federation.html#keystone-as-an-identity-provider-idp Keystone和Keystone的联合(federation)], 其中一个实例提供鉴权服务,另外一个为服务提供者。 * PKIZ是一种新的token提供方式,可以为使用PKI token的用户提供服务,(与之前不同的是)在传统的PKI token中加入了基于zlib的压缩。 * PKI token所使用的哈希算法现在可以被配置了(默认使用MD5,Keystone团队建议部署中使用SHA256)。 * Identity-driver-configuration-per-domain现在支持任意复杂层次的内部域名(例如:<code>customer.cloud.example.com</code>) * 使用LDAP鉴权作为后端时支持<code>description</code>作为用户属性。 * 鉴权服务的v3 API请求现在使用JSON Schema提供校验。 * 在使用多鉴权后端时,Keystone可以将任意的resource IDs映射到任意的后端。 * <code>keystoneclient.middleware.auth_token</code>现在移动到自己的库, <code>keystonemiddleware.auth_token</code>. * 鉴权服务的v3 API现在支持一个分离的请求获得服务目录(service catalog),<code>GET /v3/auth/catalog</code>。 * 联合(Federated)鉴权事件和本地的角色分配操作现在会触发CADF(审计)通知。 * Keystone现在能将指定的策略集合和一个或多个endpoints关联。 * Keystone现在在根API endpoints上提供JSON家文档(Home docuemtns),回复头<code>Accept: application/json-home</code>。 * 现在可以很简单的通过<code>OS-EP-FILTER</code>从客户端的服务目录中(service catalogs)隐藏endpoints. * 鉴权集合的API现在按照每一个关联用户过滤(<code>GET /v3/credentials?user_id={user_id}</code>). * 新的通用的API endpoints现在可以获取权限相关的数据,例如服务目录(service catalog),活跃的项目范围和活跃的域范围。 * Keystone现在在LDAP中支持将用户的<code>enabled</code>属性映射到<code>lock</code>属性(自动进行布尔值转换) * 可以为LDAP链接配置CA证书文件。 * 模板(templated)目录后端现在支持为鉴权服务的v3 API生成服务目录。 * 服务名称被添加到v3的服务目录中。 * 可以通过名称对服务进行过滤(<code> GET /v3/services?name={service_name}</code>)。 === Known Issues === ==== LDAP paged search results don't work with python-ldap 2.4 ==== When using an LDAP backend with paged search results enabled, AttributeErrors will be encountered if python-ldap 2.4 is being used. This is due to a backwards incompatible API change in python-ldap. The issue can be worked around in a few ways: * Disabling paging of search results by setting ''page_size'' to ''0'' in the ''[ldap]'' section of keystone.conf. * Downgrade python-ldap to version 2.3.x. 这个问题的修复已经被提到议事日程,会在Juno的稳定版升级中得到解决。详情请参阅:https://bugs.launchpad.net/keystone/+bug/1381768 === 升级提示 === * 基于简化的开包即用的(out-of-the-box)经验,默认的token提供者使用UUID替换之前的PKI。 * 对于早于Havana版本的数据库迁移被抛弃了,这就意味着如果你必须从Havana或者Icehouse版本的升级到Juno。 * 完整的更新,不推荐使用的或者被删除的Keystone选项列表,可以在这里看到:http://docs.openstack.org/trunk/config-reference/content/keystone-conf-changes-master.html ** 所有<code>token_api</code>方法被废弃了。 ** LDAP配置选项中之前包含废弃的<code>tenant</code>术语现在被<code>project</code>取代。 ** 从鉴权后端到分配后端的代理被删除了(创建提供后端兼容性,目的是将分配后端和鉴权后端分离)。这个改动只会影响定制的,out-of-tree(?)API扩展。 ** 从keystone.conf中的类名称中加载鉴权插件的方法被废弃了,取而代之是通过<code>custom-method-name = custom_package.CustomClass</code>加载,然后定义一组鉴权的方式(<code>methods = custom-method-name, password</code>)。 ** 在树状token驱动中(<code>keystone.token.backends</code>)被移动到<code>keystone.token.persistence.backends</code>。代理对象可以保持运维的兼容性。如果没有设置值,建议将<code>keystone.conf</code>中的<code>[token]</code>段中的<code>driver</code>设置为新的位置。 * 除了<code>token</code>驱动之外的所有KVS后端被废弃了。 * LDAP/AD配置:所有配置中包含"tenant"的术语被废弃了,现在建议使用"project"(例如:<code>tenant_id_attribute</code>被<code>project_id_attribute</code>替换)。 == OpenStack网络服务(Neutron) == === 新功能 === * 重构数据库迁移和新的timeline * 分布式虚拟路由支持(DVR) * 全面支持租户网络IPV6 * L3层代理高可靠 * 使用ipset替代iptables支持安全组(可配置) * L3代理性能优化 * 将RPC通讯迁移至oslo.messaging库 * 重构针对安全组的设备RPC调用(巨大的性能提升) * 在Juno版本中支持的新插件包含: ** A10 Networks LBaaS driver for the LBaaS V1 API ** Arista L3 routing plugin ** Big Switch L3 routing plugin ** Brocade L3 routing plugin ** Cisco APIC ML2 Driver (including a L3 routing plugin). ** Cisco CSR L3 routing plugin ** Freescale SDN ML2 Mechanism Driver ** Nuage Networks ML2 Mechanism Driver ** SR-IOV capable NIC ML2 Mechanism Driver === 已知问题 === * 这是针对DVR和L3高可靠第一个版本。Neutron团队明确这些功能完全可被用于生产环境是在Kilo版本,并且希望部署人员可以在非关键的负载下使用,并报告相关问题。 * 防火墙即服务(FWaas)仍然被标记为实验性功能,所以现在还不允许你在一个租户下有多余一个防火墙。 === Upgrade Notes === * DB migration from the previous releases (icehouse or havana) ** In Icehouse or Hanava releases, the db migration operation is optional. If your Neutron database is not stamped (i.e., there is the db migration version info), please make sure to "stamp icehouse" before running the upgrade db migration to Juno. ** To check if your database is stamped, run the following command: neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file <your plugin config file> current ** If the output of the current version is '''None''', please run: neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file <your plugin config file> stamp icehouse ** and then run the db migration for upgrading Juno: neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file <your plugin config file> upgrade juno * A list of all updated, deprecated or removed options in neutron can be found at: http://docs.openstack.org/trunk/config-reference/content/neutron-conf-changes-master.html * Attribute level policies dependent on resources are not enforced anymore. Meaning that some older policies from Icehouse are not needed. (e.g. "get_port:binding:vnic_type": "rule:admin_or_owner"). * The following plugins are deprecated in Juno: ** Cisco Nexus Sub-Plugin (The Nexus 1000V Sub-Plugin is still retained and supported in Juno). ** Mellanox Plugin ** Ryu Plugin *XML support in the API is deprecated. Users and deployers should migrate to JSON for API interactions as soon as possible since the XML support will be removed in the Kilo (2015.1) release. == OpenStack块存储服务(Cinder) == === 新功能 === * 支持卷复制。 * 支持一致性组(Consistency Groups)和一致性组的快照(Snapshots of Consistency Groups)。 * 支持卷资源池。 * 完成i18n * 在镜像上传中给Glance加入保护属性 * 可以在卷复制操作时限制带宽使用 * 加入卷数量Weigher的调度(算法) === 新驱动/插件 === * Datera * Fujitsu ETERNUS * Fusion IO * Hitachi HBSD * Huawei * Nimble * Prophetstor * Pure * XtremIO * Oracle ZFS === 已知问题 === 无 === 升级提示 === * 完整的更新,不推荐使用的或者被删除的Cinder选项列表,可以在这里看到:http://docs.openstack.org/trunk/config-reference/content/cinder-conf-changes-master.html * Nova现在开始支持[https://review.openstack.org/#/c/43986/ Cinder V2 API]。Cinder V1 API在Juno版本中被废弃,并且Nova将在L版本中全面切换到Cinder V2。 == OpenStack遥测(Ceilometer) == === 新功能 === * 在横向扩展的中心代理端支持度量指标集合的分区 * 告警评估(evaluation)负载使用新的[https://github.com/stackforge/tooz tooz]进行协调,与手工的协议相反 * 对SQLAlchemy存储的性能和可扩展性进行了大量优化,所以MySQL和PostgreSQL可以被用于验证或小规模部署存储度量值 * 支持通过Ironic或者新的独立的代理端,通过通知的方式,经过IPMI传感器获取的面向硬件的监控 * 更灵活、有效地SNMP监控: ** 将多个SNMP度量的多次查询归并为一个请求 ** 通过TripleO部署的节点可以动态发现进行SNMP轮询 ** 非常容易的扩展Ceilometer采集的SNMP度量指标 ** 通过多个主要指标的算法运算得到新的度量指标 * 可以讲告警的数据放入独立的数据库 * 对于度量的消息可以使用通知替代RPC调用 * Neutron网络度量服务:负载均衡即服务(LBaaS),防火墙即服务(FWaaS)和VPN即服务(VPNaaS)。 * 新的XenAPI计算资源巡检 * 支持通过MongoDB或者Hbase存储驱动(之前限制为SQLAlchemy)持久化事件 * 支持对虚拟机磁盘的每一个硬盘单独的度量 * 将Ceilometer作为系统分析数据的收集端 * [http://docs.openstack.org/admin-guide-cloud/content/ch_admin-openstack-telemetry.html 云系统管理员指南]增加对遥测服务的段落 === 已知问题 === * [https://bugs.launchpad.net/ceilometer/+bug/1381600 1381600]新的<code>ceilometer-agent-ipmi</code> 无法发出任何samples当从<code>ipmitool</code>获得数据无法被解析时。 === 升级提示 === 完整的更新,不推荐使用的或者被删除的ceilometer选项列表,可以在这里看到:http://docs.openstack.org/trunk/config-reference/content/ceilometer-conf-changes-master.html == OpenStack 编排(Heat) == === 新功能 === * 在stack更新失败时可以恢复 * 使用API可以取消或者回滚一个正在更新的stack * 实现了新的资源类型: ** OS::Glance::Image ** OS::Heat::SwiftSignal *** 提供在Swift中存储等待的条件(和软件部署)的选项 ** OS::Heat::StructuredDeployments *** 将多个生命周期事件的代码组装到一个部署资源中 ** OS::Heat::SoftwareDeployments *** 避免部署一个内部依赖的集群的服务器时产生循环依赖 ** OS::Heat::SoftwareComponent ** OS::Nova::ServerGroup ** OS::Sahara::NodeGroupTemplate ** OS::Sahara::ClusterTemplate * 记住当更新一个stack时先提供参数 * Improved scalability * 优化扩展性 * 优化嵌套stack的树的可视化 === 已知问题 === 无 === 升级提示 === 完整的更新,不推荐使用的或者被删除的heat选项列表,可以在这里看到:http://docs.openstack.org/trunk/config-reference/content/heat-conf-changes-master.html == OpenStack数据库服务(Trove) == === 新功能 === * 在提供的mysql实例中提供异步复制(主-从复制) * 引入新的集群API,开始支持MongoDB集群 * 支持使用Neutron网络的OpenStack解决方案中部署Trove。在这之前,只支持nova-network。 * 支持提供PostgreSQL数据库的实例。 * 支持Couchbase的备份和恢复。 * 支持可选择强制使用Cinder作为Trove卷的后端。 * 支持在Trove数据库中(使用mgmt API)自定义的数据存储配置参数 * 用一个调用获取所有的数据存储类型和版本 === 其他的增加的改进 === * 在trove中增加日志审计来优化日志级别 * 加入stevedore来优化扩展加载的机制 * 使用卷存储数据现在可以基于每一个数据存储 * 在配置组列表和详细信息调用中增加创建、更新时间戳以及实例数量 === Known Issues === * [https://bugs.launchpad.net/trove/+bug/1333852 1333852]: Trove does not support flavor UUIDs -- the Trove flavors API requires flavors with a numerical ID in order to be consistent with the API response for icehouse Trove. === Upgrade Notes === * trove_api_workers and trove_conductor_workers will now be equal to the number of CPUs available by default if not explicitly specified in the trove configuration files. ** Anyone upgrading to this change that does not have trove_api_workers or trove_conductor_workers specified in the trove configuration files will now be running multiple API and conductor workers by default when they restart the respective trove services. == OpenStack Data Processing (Sahara) == === New Key Features === * 数据处理的UI已经被完全整合到OpenStack控制面板中(Horizon)。 * 增加对CDH 5.x的支持。 * 增加对Apache Spark的支持。支持的版本为0.9.1和1.0.0。弹性数据处理(EDP)引擎进行了大量重构,来支持non-zero工作流引擎。 * 在当前支持1.2.1和2.3.0版本的基础上,增加对Apache Hadoop 2.4.1支持。2.3.0版本在Juno版本废弃。 * 支持多域的部署。 * Hadoop Swift的鉴权使用[http://docs.openstack.org/developer/sahara/userdoc/advanced.configuration.guide.html#domain-usage-for-swift-proxy-users keystone信任机制]。现在Hadoop访问Swift数据无须在配置文件中存储鉴权信息。 * 增加[http://docs.openstack.org/developer/sahara/userdoc/configuration.guide.html#sahara-notifications-configuration Ceilometer集成]。现在Sahara会通知Ceilometer所有集群的状态变化。 * 集群的异常处理进行了改进。如果在扩展过程中出现错误,集群将会回退到原始状态。 * [http://docs.openstack.org/developer/sahara/userdoc/features.html#security-group-management 为节点组设置安全组]。当然Sahara也可以自动的创建安全组并打开需要的端口。 * 为Sahara实现[http://docs.openstack.org/developer/sahara/userdoc/features.html#running-sahara-in-distributed-mode 分布式模式]:sahara-all进程被分解为sahara-api和sahara-engine。你能在不同节点运行几个sahara-api和sahara-engine的实例。注意这个功能的实现仅仅在alpha阶段。 === 已知问题 === * [https://bugs.launchpad.net/sahara/+bug/1271349 Bug 1271349]: Sahara需要通过命名空间使用root权限访问虚拟机。 === 升级提示 === ==== 将主程序命名为sahara-all ==== 请注意,你需要使用sahara-all替代sahara-api来运行一个一体化(All-In-One)的Sahara环境。 ==== 更新sahara.conf ==== 我们已经将auth_token中间层配置移动到通用的配置选项中。更新你的配置文件时,需要用新选项替换旧的。 * "os_auth_protocol", "os_auth_host", "os_auth_port" -> "[keystone_authtoken]/auth_uri" and "[keystone_authtoken]/identity_uri" * "os_admin_username" -> "[keystone_authtoken]/admin_user" * "os_admin_password" -> "[keystone_authtoken]/admin_password" * "os_admin_tenant_name" -> "[keystone_authtoken]/admin_tenant_name" 我们替换了sahara.openstack.common.db中oslo代码,开始使用oslo.db库。 当然sqlite数据库不再被支持了。请使用MySQL或者PostgreSQL作为Sahara数据库后端。Sqlite被放弃主要是因为他现在不支持(以后也不会支持,详见 http://www.sqlite.org/omitted.html)ALTER COLUMN和DROP COLUMN数据库版本迁移时必须的命令。 你能从Sahara库中的"etc/sahara/sahara.conf.sample"获取更多配置相关的信息。 ==== 将Sahara控制面板整合到OpenStack控制面板 ==== Sahara控制面板在Juno版本中还不存在。取而代之的是在OpenStack控制面板之外提供功能。在OpenStack控制面板进入Sahara界面的方法:"Project" -> "Data Processing"。 注意,你需要正确的在Keystone注册Sahara的信息,这样才能让Sahara UI正常工作。 ==== HEAT基础架构引擎的虚拟机用户名变更 ==== 我们已经更新了HEAT基础架构引擎("infrastructure_engine=heat"),使用直接引擎(direct engine)中实例用户名同样的规则。在改变用户名之前,使用HEAT引擎,Sahara创建的虚拟机用户名总是‘ec2-user’。现在用户名从镜像注册中移除,正如文档描述的一样。 注意,这个变化破坏了Sahara向前的兼容性,在这之前通过HEAT创建的集群都会受到影响。集群仍然可以继续操作,但是并不建议进行规模上的操作。 ==== 非依附(???Anti affinity)实现的变化 ==== 从Juno版本开始非依附(???anti affinity)功能使用服务器组来实现。这和用户期望的Sahara行为没有太大区别,但是有一些小的变化: * 如果非依附选项开启,服务器组对象会被创建 * 新的实现中,不允许几个受影响的实例运行在同一个物理主机上,即使他们上面运行了非公共的进程。所以,一旦非依附选项为'datanode'和'tasktracker'进程开启,之前的实现中允许一个实例有'datanode'进程,另外一个进程有'tasktracker'进程,并且运行在同一个物理主机上。新的实现中保证了这些实例在不同的主机上。 注意,新的实现只会对新创建的集群生效。原有实现会对用户在Icehouse版本中创建的集群起作用。 == OpenStack文档== * 这个版本中,OpenStack基金会出资,用五天的时间冲刺(five-day book sprint,翻译可能不准确)新写了一本[http://docs.openstack.org/arch-design/content/arch-guide-how-this-book-is-organized.html OpenStack架构设计指南]。这本书中提供了面向通用,面向计算,面向存储,面向网络,多节点,混合,大量的可扩展性和特殊云的架构。 * 安装文档中做了清理和标准化:使用通用的消息队列(RabbitMQ),使用openstack-config(crudini)命令替代直接编辑配置文件来改善学习成本和一致性,使用了通用的SQL数据库,这样MariaDB或者MySQL能被替换,并且替换auth_port和auth_protocol为identity_uri,并且保持一致性。安装指南完全在每一个分布式节点进行了测试,并且直到正式的安装包发布前持续发布。 * [http://docs.openstack.org/high-availability-guide/content/index.html 高可靠指南]现在有一个独立的审核团队并且移入了一个独立的库。 * [http://docs.openstack.org/security-guide/content/ 安全指南]现在有一个独立的审核团队并且移入了一个独立的库。 * API使用指南文档已经重新发布为[http://developer.openstack.org/api-ref.html API完整指南]. * 用户指南现在包含了OpenStack数据库服务的信息。 * 命令行指南现在已经更新至最新版本,并且包括了附加的章节介绍通用OpenStack客户端,trove-manage客户端,数据处理客户端(sahara)。 * [http://docs.openstack.org/admin-guide-cloud/content/ OpenStack云平台管理员指南]现在包含了遥测(Telemetry)服务(ceilometer)。