Nacos 做到 AP 协 议的关键。  存储模块：解决数据持久化、非持久化存储，解决数据分片问题。 插件  Nameserver：解决 Namespace 到 ClusterID 的路由问题，解决用户环境与 Nacos 物理环境 映射问题。  CMDB：解决元数据存储，与三方 CMDB 系统对接问题，解决应用，人，资源关系。  Metrics：暴露标准 Metrics 数据，方便与三方监控系统打通。 Nacos 上创建⼀个配置时， 如果未填写配置分组的名称，则配置分组的名称默认采用 DEFAULT_GROUP 。配置分组的常见场 景：不同的应用或组件使用了相同的配置项，如 database_url 配置和 MQ_Topic 配置。 配置 ID（Data ID） Nacos 中的某个配置集的 ID。配置集 ID 是划分配置的维度之⼀。Data ID 通常用于划分系统的配 置集。⼀个系统或 节点都可以接收到读写请求。所有的 Distro 协议的请 求场景主要分为三种情况： 1. 当该节点接收到属于该节点负责的实例的写请求时，直接写入。 2. 当该节点接收到不属于该节点负责的实例的写请求时，将在集群内部路由，转发给对应的节点， 从而完成读写。 3. 当该节点接收到任何读请求时，都直接在本机查询并返回（因为所有实例都被同步到了每台机 器上）。 Distro 协议作为 Nacos 的内嵌临时实例⼀

e. LoggingActiveMQServerPlugin ). Option to use OpenSSL provider for Netty via the sslProvider URL parameter. Enable splitting of broker.xml into multiple files. Enhanced message count and size metrics 1.x clients needs to have anycastPrefix=jms.queue.;multicastPrefix=jms.topic. in the acceptor url. This prefix used to be configured automatically behind the scenes when the broker detected these remove the Jolokia war file from the web element in /etc/bootstrap.xml : url="jolokia" war="jolokia.war"/> This is no longer required as the Jolokia REST interface is now integrated

Subject Alternative Name values of the broker's SSL certificate to match the hostname in the client's URL. This impacts all core-based clients including core JMS clients and core connections between cluster following: Update your SSL certificates to use a hostname which matches the hostname in the client's URL. This is the recommended option with regard to security. Update any connector using sslEnabled=true acceptor which has the problem. The CLI will now read the broker.xml to find the default connector URL for commands which require it (e.g. consumer , producer , etc.) 2.11.0 Versions 15 Full release

Subject Alternative Name values of the broker's SSL certificate to match the hostname in the client's URL. This impacts all core-based clients including core JMS clients and core connections between cluster following: Update your SSL certificates to use a hostname which matches the hostname in the client's URL. This is the recommended option with regard to security. Update any connector using sslEnabled=true acceptor which has the problem. The CLI will now read the broker.xml to find the default connector URL for commands which require it (e.g. consumer , producer , etc.) 2.11.0 Full release notes. Highlights:

Subject Alternative Name values of the broker's SSL certificate to match the hostname in the client's URL. This impacts all core-based clients including core JMS clients and core connections between cluster following: Update your SSL certificates to use a hostname which matches the hostname in the client's URL. This is the recommended option with regard to security. Update any connector using sslEnabled=true acceptor which has the problem. The CLI will now read the broker.xml to find the default connector URL for commands which require it (e.g. consumer , producer , etc.) 2.11.0 Versions 16 Full release

e. LoggingActiveMQServerPlugin ). Option to use OpenSSL provider for Netty via the sslProvider URL parameter. Enable splitting of broker.xml into multiple files. Enhanced message count and size metrics 1.x clients needs to have anycastPrefix=jms.queue.;multicastPrefix=jms.topic. in the acceptor url. This prefix used to be configured automatically behind the scenes when the broker detected these remove the Jolokia war file from the web element in /etc/bootstrap.xml : url="jolokia" war="jolokia.war"/> This is no longer required as the Jolokia REST interface is now integrated

LoggingActiveMQServerPlugin ). Option to use OpenSSL provider for Netty via the sslProvider URL parameter. Enable splitting of broker.xml into multiple files. Enhanced message count and size metrics 1.x clients needs to have anycastPrefix=jms.queue.;multicastPrefix=jms.topic. in the acceptor url. This prefix used to be configured automatically behind the scenes when the broker detected these remove the Jolokia war file from the web element in /etc/bootstrap.xml : url="jolokia" war="jolokia.war"/> This is no longer required as the Jolokia REST interface is now integrated

multicastPrefix parameters within the URL of an acceptor. Configuring an Anycast Prefix Address Model 31 In /etc/broker.xml, add the anycastPrefix to the URL of the desired acceptor. In the example Configuring a Multicast Prefix In /etc/broker.xml, add the anycastPrefix to the URL of the desired acceptor. In the example below, the acceptor is configured to use multicast:// for invmConnectionFactory1=vm://1 connectionFactory.invmConnectionFactory2=vm://2 Here is a list of all the supported URL schemes: vm tcp udp jgroups Most clients won't be connecting to an embedded broker. Clients

LoggingActiveMQServerPlugin ). Option to use OpenSSL provider for Netty via the sslProvider URL parameter. Enable splitting of broker.xml into multiple files. Enhanced message count and size metrics 1.x clients needs to have anycastPrefix=jms.queue.;multicastPrefix=jms.topic. in the acceptor url. This prefix used to be configured automatically behind the scenes when the broker detected these remove the Jolokia war file from the web element in /etc/bootstrap.xml : url="jolokia" war="jolokia.war"/> This is no longer required as the Jolokia REST interface is now integrated

e. LoggingActiveMQServerPlugin ). Option to use OpenSSL provider for Netty via the sslProvider URL parameter. Enable splitting of broker.xml into multiple files. Enhanced message count and size metrics 1.x clients needs to have anycastPrefix=jms.queue.;multicastPrefix=jms.topic. in the acceptor url. This prefix used to be configured automatically behind the scenes when the broker detected these remove the Jolokia war file from the web element in /etc/bootstrap.xml : url="jolokia" war="jolokia.war"/> This is no longer required as the Jolokia REST interface is now integrated