Artemis从节点不能在整个集群中启动

Question

我试图将一个6节点的Apache Artemis静态集群作为3个实时备份对运行。为了在整个集群重启期间不丢失数据，我还创建了一种机制，可以找出这两个节点中哪一个数据更新，并根据该机制服务器自动决定启动该特定节点是否安全。在整个群集重新启动期间，服务器将同时启动，具有较新数据的节点将在最近充当备份的节点之前启动。

这个场景在使用单个活备份对时工作得很好。

null

null

但是，在6节点集群中，备份节点根本不上线：

1. 3个活动节点，3个备份节点；成对结合在一起的独立群(rs1,rs2,rs3)
2. 停止rs1主节点=>rs1从节点上线
3. 停止rs1从节点
4. 启动rs1从节点=>从不上线
5. 不能启动rs1主节点，因为可能会丢失数据

你知道我的设置出了什么问题吗？

<?xml version="1.0" encoding="UTF-8"?>
<ha-policy xmlns="urn:activemq:core">
   <replication>
      <master>
         <cluster-name>clouedi-mq-dev</cluster-name>
         <group-name>rs1</group-name>
         <check-for-live-server>true</check-for-live-server>
      </master>
   </replication>
</ha-policy>

<?xml version="1.0" encoding="UTF-8"?>
<ha-policy xmlns="urn:activemq:core">
   <replication>
      <slave>
         <cluster-name>clouedi-mq-dev</cluster-name>
         <group-name>rs1</group-name>
         <allow-failback>true</allow-failback>
      </slave>
   </replication>
</ha-policy>

2020-11-30 12:34:54,021 INFO  [org.apache.activemq.artemis.integration.bootstrap] AMQ101000: Starting ActiveMQ Artemis Server
2020-11-30 12:34:54,082 INFO  [org.apache.activemq.artemis.core.server] AMQ221000: live Message Broker is starting with configuration Broker Configuration (clustered=true,journalDirectory=data/journal,bindingsDirectory=data/bindings,largeMessagesDirectory=data/large-messages,pagingDirectory=data/paging)
2020-11-30 12:34:59,425 INFO  [org.apache.activemq.artemis.core.server] AMQ221012: Using AIO Journal
2020-11-30 12:34:59,429 WARN  [org.apache.activemq.artemis.core.server] AMQ222007: Security risk! Apache ActiveMQ Artemis is running with the default cluster admin user and default password. Please see the cluster chapter in the ActiveMQ Artemis User Guide for instructions on how to change this.
2020-11-30 12:34:59,435 INFO  [org.apache.activemq.artemis.core.server] AMQ221057: Global Max Size is being adjusted to 1/2 of the JVM max size (-Xmx). being defined as 1,073,741,824
2020-11-30 12:34:59,487 INFO  [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-server]. Adding protocol support for: CORE
...address deployment...
2020-11-30 12:35:00,123 INFO  [org.apache.activemq.artemis.core.server] AMQ221020: Started EPOLL Acceptor at 0.0.0.0:61616 for protocols [CORE,STOMP]
2020-11-30 12:35:00,124 INFO  [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live
2020-11-30 12:35:00,124 INFO  [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.15.0 [edimq-broker-master-dev-az1-1, nodeID=6937ad47-309c-11eb-811e-0275ba22b614]
2020-11-30 12:35:00,315 INFO  [org.apache.activemq.artemis.core.server] AMQ221027: Bridge ClusterConnectionBridge@58d025c9 [name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@7c398410 targetConnector=ServerLocatorImpl (identity=(Cluster-connection-bridge::ClusterConnectionBridge@58d025c9 [name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@7c398410 targetConnector=ServerLocatorImpl [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-2, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-206], discoveryGroupConfiguration=null]]::ClusterConnectionImpl@1779219567[nodeUUID=6937ad47-309c-11eb-811e-0275ba22b614, connector=TransportConfiguration(name=edimq-broker-master-dev-az1-1, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-96, address=, server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614])) [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-2, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-206], discoveryGroupConfiguration=null]] is connected
2020-11-30 12:35:00,318 INFO  [org.apache.activemq.artemis.core.server] AMQ221027: Bridge ClusterConnectionBridge@77158457 [name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@2f988822 targetConnector=ServerLocatorImpl (identity=(Cluster-connection-bridge::ClusterConnectionBridge@77158457 [name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@2f988822 targetConnector=ServerLocatorImpl [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-3, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-20], discoveryGroupConfiguration=null]]::ClusterConnectionImpl@1779219567[nodeUUID=6937ad47-309c-11eb-811e-0275ba22b614, connector=TransportConfiguration(name=edimq-broker-master-dev-az1-1, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-96, address=, server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614])) [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-3, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-20], discoveryGroupConfiguration=null]] is connected
2020-11-30 12:35:00,688 INFO  [org.apache.activemq.hawtio.branding.PluginContextListener] Initialized activemq-branding plugin
2020-11-30 12:35:00,766 INFO  [org.apache.activemq.hawtio.plugin.PluginContextListener] Initialized artemis-plugin plugin
2020-11-30 12:35:01,187 INFO  [io.hawt.HawtioContextListener] Initialising hawtio services
2020-11-30 12:35:01,196 INFO  [io.hawt.system.ConfigManager] Configuration will be discovered via system properties
2020-11-30 12:35:01,199 INFO  [io.hawt.jmx.JmxTreeWatcher] Welcome to hawtio 1.5.12 : http://hawt.io/ : Don't cha wish your console was hawt like me? ;-)
2020-11-30 12:35:01,203 INFO  [io.hawt.jmx.UploadManager] Using file upload directory: /opt/artemis/edimq-broker-master-dev-az1-1/tmp/uploads
2020-11-30 12:35:01,217 INFO  [io.hawt.web.AuthenticationFilter] Starting hawtio authentication filter, JAAS realm: "activemq" authorized role(s): "amq" role principal classes: "org.apache.activemq.artemis.spi.core.security.jaas.RolePrincipal"
2020-11-30 12:35:01,240 INFO  [io.hawt.web.JolokiaConfiguredAgentServlet] Jolokia overridden property: [key=policyLocation, value=file:/opt/artemis/edimq-broker-master-dev-az1-1/etc//jolokia-access.xml]
2020-11-30 12:35:01,269 INFO  [io.hawt.web.RBACMBeanInvoker] Using MBean [hawtio:type=security,area=jmx,rank=0,name=HawtioDummyJMXSecurity] for role based access control
2020-11-30 12:35:01,389 INFO  [io.hawt.system.ProxyWhitelist] Initial proxy whitelist: [localhost, 127.0.0.1, 10.35.2.96, edimq-broker-master-dev-az1-1.dc01.clouedi.local]
2020-11-30 12:35:01,722 INFO  [org.apache.activemq.artemis] AMQ241001: HTTP Server started at http://0.0.0.0:8161
2020-11-30 12:35:01,722 INFO  [org.apache.activemq.artemis] AMQ241002: Artemis Jolokia REST API available at http://0.0.0.0:8161/console/jolokia
2020-11-30 12:35:01,723 INFO  [org.apache.activemq.artemis] AMQ241004: Artemis Console available at http://0.0.0.0:8161/console
2020-11-30 12:35:18,072 INFO  [org.apache.activemq.artemis.core.server] AMQ221025: Replication: sending AIOSequentialFile:/opt/artemis/edimq-broker-master-dev-az1-1/data/journal/activemq-data-45.amq (size=10,485,760) to replica.
2020-11-30 12:35:18,687 INFO  [org.apache.activemq.artemis.core.server] AMQ221025: Replication: sending NIOSequentialFile /opt/artemis/edimq-broker-master-dev-az1-1/data/bindings/activemq-bindings-2.bindings (size=1,048,576) to replica.
2020-11-30 12:35:18,697 INFO  [org.apache.activemq.artemis.core.server] AMQ221025: Replication: sending NIOSequentialFile /opt/artemis/edimq-broker-master-dev-az1-1/data/bindings/activemq-bindings-50.bindings (size=1,048,576) to replica.
2020-11-30 12:35:18,709 INFO  [org.apache.activemq.artemis.core.server] AMQ221025: Replication: sending NIOSequentialFile /opt/artemis/edimq-broker-master-dev-az1-1/data/bindings/activemq-bindings-37.bindings (size=1,048,576) to replica.

2020-11-30 12:35:16,773 INFO  [org.apache.activemq.artemis.integration.bootstrap] AMQ101000: Starting ActiveMQ Artemis Server
2020-11-30 12:35:16,847 INFO  [org.apache.activemq.artemis.core.server] AMQ221000: backup Message Broker is starting with configuration Broker Configuration (clustered=true,journalDirectory=data/journal,bindingsDirectory=data/bindings,largeMessagesDirectory=data/large-messages,pagingDirectory=data/paging)
2020-11-30 12:35:16,976 INFO  [org.apache.activemq.artemis.core.server] AMQ221055: There were too many old replicated folders upon startup, removing /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal/oldreplica.44
2020-11-30 12:35:16,978 INFO  [org.apache.activemq.artemis.core.server] AMQ222162: Moving data directory /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal to /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal/oldreplica.46
2020-11-30 12:35:17,039 INFO  [org.apache.activemq.artemis.core.server] AMQ221012: Using AIO Journal
2020-11-30 12:35:17,101 WARN  [org.apache.activemq.artemis.core.server] AMQ222007: Security risk! Apache ActiveMQ Artemis is running with the default cluster admin user and default password. Please see the cluster chapter in the ActiveMQ Artemis User Guide for instructions on how to change this.
2020-11-30 12:35:17,107 INFO  [org.apache.activemq.artemis.core.server] AMQ221057: Global Max Size is being adjusted to 1/2 of the JVM max size (-Xmx). being defined as 1,073,741,824
2020-11-30 12:35:17,263 INFO  [org.apache.activemq.hawtio.branding.PluginContextListener] Initialized activemq-branding plugin
2020-11-30 12:35:17,356 INFO  [org.apache.activemq.hawtio.plugin.PluginContextListener] Initialized artemis-plugin plugin
2020-11-30 12:35:17,405 INFO  [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-server]. Adding protocol support for: CORE
2020-11-30 12:35:17,863 INFO  [org.apache.activemq.artemis.core.server] AMQ221109: Apache ActiveMQ Artemis Backup Server version 2.15.0 [null] started, waiting live to fail before it gets active
2020-11-30 12:35:17,974 INFO  [io.hawt.HawtioContextListener] Initialising hawtio services
2020-11-30 12:35:17,985 INFO  [io.hawt.system.ConfigManager] Configuration will be discovered via system properties
2020-11-30 12:35:17,987 INFO  [io.hawt.jmx.JmxTreeWatcher] Welcome to hawtio 1.5.12 : http://hawt.io/ : Don't cha wish your console was hawt like me? ;-)
2020-11-30 12:35:17,992 INFO  [io.hawt.jmx.UploadManager] Using file upload directory: /opt/artemis/edimq-broker-slave-dev-az1-1/tmp/uploads
2020-11-30 12:35:18,021 INFO  [io.hawt.web.AuthenticationFilter] Starting hawtio authentication filter, JAAS realm: "activemq" authorized role(s): "amq" role principal classes: "org.apache.activemq.artemis.spi.core.security.jaas.RolePrincipal"
2020-11-30 12:35:18,058 INFO  [io.hawt.web.JolokiaConfiguredAgentServlet] Jolokia overridden property: [key=policyLocation, value=file:/opt/artemis/edimq-broker-slave-dev-az1-1/etc//jolokia-access.xml]
2020-11-30 12:35:18,089 INFO  [io.hawt.web.RBACMBeanInvoker] Using MBean [hawtio:type=security,area=jmx,rank=0,name=HawtioDummyJMXSecurity] for role based access control
2020-11-30 12:35:18,216 INFO  [io.hawt.system.ProxyWhitelist] Initial proxy whitelist: [localhost, 127.0.0.1, 10.35.2.101, edimq-broker-slave-dev-az1-1.dc01.clouedi.local]
2020-11-30 12:35:18,581 INFO  [org.apache.activemq.artemis] AMQ241001: HTTP Server started at http://0.0.0.0:8161
2020-11-30 12:35:18,582 INFO  [org.apache.activemq.artemis] AMQ241002: Artemis Jolokia REST API available at http://0.0.0.0:8161/console/jolokia
2020-11-30 12:35:18,582 INFO  [org.apache.activemq.artemis] AMQ241004: Artemis Console available at http://0.0.0.0:8161/console
2020-11-30 12:35:18,964 INFO  [org.apache.activemq.artemis.core.server] AMQ221024: Backup server ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614 is synchronized with live-server.
2020-11-30 12:35:18,981 INFO  [org.apache.activemq.artemis.core.server] AMQ221031: backup announced

2020-11-30 12:38:48,621 WARN  [org.apache.activemq.artemis.core.server] AMQ222294:
**************************************************************************************************************************************************************************************************************************************************************
There is a possible split brain on nodeID 6937ad47-309c-11eb-811e-0275ba22b614, coming from connectors 6937ad47-309c-11eb-811e-0275ba22b614. Topology update ignored.
**************************************************************************************************************************************************************************************************************************************************************
2020-11-30 12:38:48,632 WARN  [org.apache.activemq.artemis.core.server] AMQ222294:
**************************************************************************************************************************************************************************************************************************************************************
There is a possible split brain on nodeID 6937ad47-309c-11eb-811e-0275ba22b614, coming from connectors 6937ad47-309c-11eb-811e-0275ba22b614. Topology update ignored.
**************************************************************************************************************************************************************************************************************************************************************
2020-11-30 12:38:48,644 INFO  [org.apache.activemq.artemis.core.server] AMQ221029: stopped bridge $.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe
2020-11-30 12:38:48,644 INFO  [org.apache.activemq.artemis.core.server] AMQ221029: stopped bridge $.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4
2020-11-30 12:38:48,796 INFO  [io.hawt.HawtioContextListener] Destroying hawtio services
2020-11-30 12:38:48,800 INFO  [io.hawt.web.AuthenticationFilter] Destroying hawtio authentication filter
2020-11-30 12:38:48,849 INFO  [org.apache.activemq.hawtio.plugin.PluginContextListener] Destroyed artemis-plugin plugin
2020-11-30 12:38:48,853 INFO  [org.apache.activemq.hawtio.branding.PluginContextListener] Destroyed activemq-branding plugin
2020-11-30 12:38:48,877 INFO  [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.15.0 [6937ad47-309c-11eb-811e-0275ba22b614] stopped, uptime 3 minutes

2020-11-30 12:38:48,621 INFO  [org.apache.activemq.artemis.core.server] AMQ221066: Initiating quorum vote: LiveFailoverQuorumVote
2020-11-30 12:38:48,622 INFO  [org.apache.activemq.artemis.core.server] AMQ221084: Requested 2 quorum votes
2020-11-30 12:38:48,623 INFO  [org.apache.activemq.artemis.core.server] AMQ221067: Waiting 30 seconds for quorum vote results.
2020-11-30 12:38:48,637 WARN  [org.apache.activemq.artemis.core.client] AMQ212037: Connection failure to 10.35.2.96/10.35.2.96:61616 has been detected: AMQ219015: The connection was disconnected because of server shutdown [code=DISCONNECTED]
2020-11-30 12:38:48,644 WARN  [org.apache.activemq.artemis.core.client] AMQ212037: Connection failure to 10.35.2.96/10.35.2.96:61616 has been detected: AMQ219015: The connection was disconnected because of server shutdown [code=DISCONNECTED]
2020-11-30 12:38:48,666 INFO  [org.apache.activemq.artemis.core.server] AMQ221060: Sending quorum vote request to 10.35.2.20/10.35.2.20:61616: ServerConnectVote [nodeId=6937ad47-309c-11eb-811e-0275ba22b614, vote=false]
2020-11-30 12:38:48,667 INFO  [org.apache.activemq.artemis.core.server] AMQ221060: Sending quorum vote request to 10.35.2.206/10.35.2.206:61616: ServerConnectVote [nodeId=6937ad47-309c-11eb-811e-0275ba22b614, vote=false]
2020-11-30 12:38:48,675 INFO  [org.apache.activemq.artemis.core.server] AMQ221061: Received quorum vote response from 10.35.2.206/10.35.2.206:61616: ServerConnectVote [nodeId=6937ad47-309c-11eb-811e-0275ba22b614, vote=true]
2020-11-30 12:38:48,676 INFO  [org.apache.activemq.artemis.core.server] AMQ221061: Received quorum vote response from 10.35.2.20/10.35.2.20:61616: ServerConnectVote [nodeId=6937ad47-309c-11eb-811e-0275ba22b614, vote=true]
2020-11-30 12:38:48,677 INFO  [org.apache.activemq.artemis.core.server] AMQ221068: Received all quorum votes.
2020-11-30 12:38:48,682 INFO  [org.apache.activemq.artemis.core.server] AMQ221071: Failing over based on quorum vote results.
2020-11-30 12:38:48,705 INFO  [org.apache.activemq.artemis.core.server] AMQ221037: ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614 to become 'live'
2020-11-30 12:38:48,722 WARN  [org.apache.activemq.artemis.core.client] AMQ212004: Failed to connect to server.
...address deployment...
2020-11-30 12:38:49,217 INFO  [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live
2020-11-30 12:38:49,238 INFO  [org.apache.activemq.artemis.core.server] AMQ221020: Started EPOLL Acceptor at 0.0.0.0:61616 for protocols [CORE,STOMP]
2020-11-30 12:38:49,269 INFO  [org.apache.activemq.artemis.core.server] AMQ221027: Bridge ClusterConnectionBridge@50794972 [name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@13fa6cc targetConnector=ServerLocatorImpl (identity=(Cluster-connection-bridge::ClusterConnectionBridge@50794972 [name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@13fa6cc targetConnector=ServerLocatorImpl [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-2, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-206], discoveryGroupConfiguration=null]]::ClusterConnectionImpl@1854054128[nodeUUID=6937ad47-309c-11eb-811e-0275ba22b614, connector=TransportConfiguration(name=edimq-broker-slave-dev-az1-1, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-101, address=, server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614])) [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-2, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-206], discoveryGroupConfiguration=null]] is connected
2020-11-30 12:38:49,270 INFO  [org.apache.activemq.artemis.core.server] AMQ221027: Bridge ClusterConnectionBridge@39f7703c [name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@66eabf5 targetConnector=ServerLocatorImpl (identity=(Cluster-connection-bridge::ClusterConnectionBridge@39f7703c [name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, queue=QueueImpl[name=$.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe, postOffice=PostOfficeImpl [server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614], temp=false]@66eabf5 targetConnector=ServerLocatorImpl [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-3, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-20], discoveryGroupConfiguration=null]]::ClusterConnectionImpl@1854054128[nodeUUID=6937ad47-309c-11eb-811e-0275ba22b614, connector=TransportConfiguration(name=edimq-broker-slave-dev-az1-1, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-101, address=, server=ActiveMQServerImpl::serverUUID=6937ad47-309c-11eb-811e-0275ba22b614])) [initialConnectors=[TransportConfiguration(name=edimq-broker-master-dev-az1-3, factory=org-apache-activemq-artemis-core-remoting-impl-netty-NettyConnectorFactory) ?port=61616&host=10-35-2-20], discoveryGroupConfiguration=null]] is connected

2020-11-30 12:39:56,693 WARN  [org.apache.activemq.artemis.core.server] AMQ222294:
**************************************************************************************************************************************************************************************************************************************************************
There is a possible split brain on nodeID 6937ad47-309c-11eb-811e-0275ba22b614, coming from connectors 6937ad47-309c-11eb-811e-0275ba22b614. Topology update ignored.
**************************************************************************************************************************************************************************************************************************************************************
2020-11-30 12:39:56,694 WARN  [org.apache.activemq.artemis.core.server] AMQ222294:
**************************************************************************************************************************************************************************************************************************************************************
There is a possible split brain on nodeID 6937ad47-309c-11eb-811e-0275ba22b614, coming from connectors 6937ad47-309c-11eb-811e-0275ba22b614. Topology update ignored.
**************************************************************************************************************************************************************************************************************************************************************
2020-11-30 12:39:56,704 INFO  [org.apache.activemq.artemis.core.server] AMQ221029: stopped bridge $.artemis.internal.sf.clouedi-mq-dev.88c93073-309c-11eb-9fb4-02ca1af23dbe
2020-11-30 12:39:56,711 INFO  [org.apache.activemq.artemis.core.server] AMQ221029: stopped bridge $.artemis.internal.sf.clouedi-mq-dev.793500b2-309c-11eb-998e-02436e93e5b4
2020-11-30 12:39:56,859 INFO  [io.hawt.HawtioContextListener] Destroying hawtio services
2020-11-30 12:39:56,863 INFO  [io.hawt.web.AuthenticationFilter] Destroying hawtio authentication filter
2020-11-30 12:39:56,914 INFO  [org.apache.activemq.hawtio.plugin.PluginContextListener] Destroyed artemis-plugin plugin
2020-11-30 12:39:56,918 INFO  [org.apache.activemq.hawtio.branding.PluginContextListener] Destroyed activemq-branding plugin
2020-11-30 12:39:56,946 INFO  [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.15.0 [6937ad47-309c-11eb-811e-0275ba22b614] stopped, uptime 4 minutes

2020-11-30 12:40:34,153 INFO  [org.apache.activemq.artemis.integration.bootstrap] AMQ101000: Starting ActiveMQ Artemis Server
2020-11-30 12:40:34,209 INFO  [org.apache.activemq.artemis.core.server] AMQ221000: backup Message Broker is starting with configuration Broker Configuration (clustered=true,journalDirectory=data/journal,bindingsDirectory=data/bindings,largeMessagesDirectory=data/large-messages,pagingDirectory=data/paging)
2020-11-30 12:40:34,240 INFO  [org.apache.activemq.artemis.core.server] AMQ221055: There were too many old replicated folders upon startup, removing /opt/artemis/edimq-broker-slave-dev-az1-1/data/bindings/oldreplica.19
2020-11-30 12:40:34,246 INFO  [org.apache.activemq.artemis.core.server] AMQ222162: Moving data directory /opt/artemis/edimq-broker-slave-dev-az1-1/data/bindings to /opt/artemis/edimq-broker-slave-dev-az1-1/data/bindings/oldreplica.21
2020-11-30 12:40:34,248 INFO  [org.apache.activemq.artemis.core.server] AMQ221055: There were too many old replicated folders upon startup, removing /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal/oldreplica.45
2020-11-30 12:40:34,248 INFO  [org.apache.activemq.artemis.core.server] AMQ222162: Moving data directory /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal to /opt/artemis/edimq-broker-slave-dev-az1-1/data/journal/oldreplica.47
2020-11-30 12:40:34,249 INFO  [org.apache.activemq.artemis.core.server] AMQ221055: There were too many old replicated folders upon startup, removing /opt/artemis/edimq-broker-slave-dev-az1-1/data/paging/oldreplica.19
2020-11-30 12:40:34,257 INFO  [org.apache.activemq.artemis.core.server] AMQ222162: Moving data directory /opt/artemis/edimq-broker-slave-dev-az1-1/data/paging to /opt/artemis/edimq-broker-slave-dev-az1-1/data/paging/oldreplica.21
2020-11-30 12:40:34,321 INFO  [org.apache.activemq.artemis.core.server] AMQ221012: Using AIO Journal
2020-11-30 12:40:34,402 WARN  [org.apache.activemq.artemis.core.server] AMQ222007: Security risk! Apache ActiveMQ Artemis is running with the default cluster admin user and default password. Please see the cluster chapter in the ActiveMQ Artemis User Guide for instructions on how to change this.
2020-11-30 12:40:34,413 INFO  [org.apache.activemq.artemis.core.server] AMQ221057: Global Max Size is being adjusted to 1/2 of the JVM max size (-Xmx). being defined as 1,073,741,824
2020-11-30 12:40:34,607 INFO  [org.apache.activemq.artemis.core.server] AMQ221043: Protocol module found: [artemis-server]. Adding protocol support for: CORE
2020-11-30 12:40:34,774 INFO  [org.apache.activemq.hawtio.branding.PluginContextListener] Initialized activemq-branding plugin
2020-11-30 12:40:34,888 INFO  [org.apache.activemq.hawtio.plugin.PluginContextListener] Initialized artemis-plugin plugin
2020-11-30 12:40:34,927 INFO  [org.apache.activemq.artemis.core.server] AMQ221109: Apache ActiveMQ Artemis Backup Server version 2.15.0 [null] started, waiting live to fail before it gets active
2020-11-30 12:40:35,301 INFO  [io.hawt.HawtioContextListener] Initialising hawtio services
2020-11-30 12:40:35,310 INFO  [io.hawt.system.ConfigManager] Configuration will be discovered via system properties
2020-11-30 12:40:35,312 INFO  [io.hawt.jmx.JmxTreeWatcher] Welcome to hawtio 1.5.12 : http://hawt.io/ : Don't cha wish your console was hawt like me? ;-)
2020-11-30 12:40:35,320 INFO  [io.hawt.jmx.UploadManager] Using file upload directory: /opt/artemis/edimq-broker-slave-dev-az1-1/tmp/uploads
2020-11-30 12:40:35,339 INFO  [io.hawt.web.AuthenticationFilter] Starting hawtio authentication filter, JAAS realm: "activemq" authorized role(s): "amq" role principal classes: "org.apache.activemq.artemis.spi.core.security.jaas.RolePrincipal"
2020-11-30 12:40:35,365 INFO  [io.hawt.web.JolokiaConfiguredAgentServlet] Jolokia overridden property: [key=policyLocation, value=file:/opt/artemis/edimq-broker-slave-dev-az1-1/etc//jolokia-access.xml]
2020-11-30 12:40:35,392 INFO  [io.hawt.web.RBACMBeanInvoker] Using MBean [hawtio:type=security,area=jmx,rank=0,name=HawtioDummyJMXSecurity] for role based access control
2020-11-30 12:40:35,511 INFO  [io.hawt.system.ProxyWhitelist] Initial proxy whitelist: [localhost, 127.0.0.1, 10.35.2.101, edimq-broker-slave-dev-az1-1.dc01.clouedi.local]
2020-11-30 12:40:35,819 INFO  [org.apache.activemq.artemis] AMQ241001: HTTP Server started at http://0.0.0.0:8161
2020-11-30 12:40:35,819 INFO  [org.apache.activemq.artemis] AMQ241002: Artemis Jolokia REST API available at http://0.0.0.0:8161/console/jolokia
2020-11-30 12:40:35,819 INFO  [org.apache.activemq.artemis] AMQ241004: Artemis Console available at http://0.0.0.0:8161/console

上面显示从机根本不启动。

Answer 1

当ActiveMQ Artemis使用复制时，活动服务器和备份服务器不共享相同的数据目录，所有数据同步都是通过网络完成的。

在启动时，备份服务器首先需要同步来自实时服务器的所有现有数据，然后才能在实时服务器出现故障时替换它。因此，与使用共享存储不同的是，复制备份在启动后并不是完全可操作的备份，而是在完成与实时服务器的数据同步之后。

为什么一个单独的活备份对看起来可以工作？

null

因此，在只有一个活备份对的场景中，备份节点不会完成初始化。