红帽全球峰会第 2 章 为跨站点复制配置数据网格
配置 Data Grid 以跨站点复制数据，首先设置集群传输，以便数据网格集群可以相互发现，站点 master 可以进行通信。然后，您将备份位置添加到 Data Grid 配置中的缓存定义中。
2.1. 为跨站点复制配置集群传输
复制链接链接已复制到粘贴板!
将 JGroups RELAY2 添加到您的传输层，以便数据网格集群可以与备份位置通信。
流程
-
打开
infinispan.xml进行编辑。 - 将 RELAY2 协议添加到 JGroups 堆栈。
配置 Data Grid 集群传输以使用堆栈。
<infinispan> <jgroups> <!-- Extends the default UDP stack. --> <stack name="xsite" extends="udp"> <!-- Adds RELAY2 for cross-site replication. --> <!-- Names the local site as LON. --> <!-- Specifies 1000 nodes as the maximum number of site masters. --> <relay.RELAY2 site="LON" xmlns="urn:org:jgroups" max_site_masters="1000"/> <!-- Uses the default TCP stack for inter-cluster communication. --> <!-- Names all sites that act as backup locations. --> <remote-sites default-stack="tcp"> <remote-site name="LON"/> <remote-site name="NYC"/> </remote-sites> </stack> </jgroups> <cache-container name="default" statistics="true"> <!-- Use the "xsite" stack for cluster transport. --> <transport cluster="${cluster.name}" stack="xsite"/> </cache-container> </infinispan>-
保存并关闭
infinispan.xml。
2.1.1. JGroups RELAY2 Stacks
复制链接链接已复制到粘贴板!
Data Grid 集群使用 JGroups RELAY2 进行集群内部发现和通信。
<jgroups>
<!-- Uses the default JGroups UDP stack for intra-cluster traffic. -->
<stack name="xsite" extends="udp">
<!-- Adds RELAY2 to the stack for inter-cluster transport. -->
<!-- Names the local site. Data in caches from the local site is replicated to backup locations. -->
<!-- Configures a maximum of 1000 site masters for the local cluster. -->
<relay.RELAY2 xmlns="urn:org:jgroups"
site="LON"
max_site_masters="1000"/>
<!-- Specifies all site names and uses the default JGroups TCP stack for inter-cluster transport. -->
<remote-sites default-stack="tcp">
<!-- Names all sites that participate in cross-site replication. -->
<remote-site name="LON"/>
<remote-site name="NYC"/>
</remote-sites>
</stack>
</jgroups>提示
设置 max_site_masters >= Data Grid 集群中的节点数，以实现使用备份请求的最佳性能。
2.1.2. 自定义 JGroups RELAY2 Stacks
复制链接链接已复制到粘贴板!
以下配置添加了扩展默认 TCP 堆栈的自定义 RELAY2 堆栈：
<jgroups>
<!-- Uses TCPPING instead of MPING for discovery. -->
<stack name="relay-global" extends="tcp">
<MPING stack.combine="REMOVE"/>
<TCPPING initial_hosts="192.0.2.0[7800]"
stack.combine="INSERT_AFTER"
stack.position="TCP"/>
</stack>
<!-- Extends the default UDP stack with RELAY2. -->
<!-- Specifies RELAY2 properties. -->
<stack name="xsite" extends="udp">
<relay.RELAY2 site="LON" xmlns="urn:org:jgroups"
max_site_masters="10"
can_become_site_master="true"/>
<remote-sites default-stack="relay-global">
<remote-site name="LON"/>
<remote-site name="NYC"/>
</remote-sites>
</stack>
</jgroups>您还可以引用外部定义的 JGroups 堆栈文件，例如：
<infinispan>
<jgroups>
<stack-file name="relay-global" path="jgroups-relay.xml"/>
</jgroups>
<cache-container default-cache="replicatedCache">
<transport stack="relay-global" />
<replicated-cache name="replicatedCache"/>
</cache-container>
</infinispan>
其中 jgroups-relay.xml 引用 JGroups 堆栈文件，例如：
<config xmlns="urn:org:jgroups"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups-4.1.xsd">
<!-- Use TCP for inter-cluster transport. -->
<TCP bind_addr="127.0.0.1"
bind_port="7200"
port_range="30"
thread_pool.min_threads="0"
thread_pool.max_threads="8"
thread_pool.keep_alive_time="5000"
/>
<!-- Use TCPPING for inter-cluster discovery. -->
<TCPPING timeout="3000"
initial_hosts="127.0.0.1[7200]"
port_range="3"
ergonomics="false"/>
<!-- Provide other JGroups stack configuration as required. -->
</config>
'%20d='M201.5%20305.5c-13.8%200-24.9-11.1-24.9-24.6%200-13.8%2011.1-24.9%2024.9-24.9%2013.6%200%2024.6%2011.1%2024.6%2024.9%200%2013.6-11.1%2024.6-24.6%2024.6zM504%20256c0%20137-111%20248-248%20248S8%20393%208%20256%20119%208%20256%208s248%20111%20248%20248zm-132.3-41.2c-9.4%200-17.7%203.9-23.8%2010-22.4-15.5-52.6-25.5-86.1-26.6l17.4-78.3%2055.4%2012.5c0%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.3%2024.9-24.9s-11.1-24.9-24.9-24.9c-9.7%200-18%205.8-22.1%2013.8l-61.2-13.6c-3-.8-6.1%201.4-6.9%204.4l-19.1%2086.4c-33.2%201.4-63.1%2011.3-85.5%2026.8-6.1-6.4-14.7-10.2-24.1-10.2-34.9%200-46.3%2046.9-14.4%2062.8-1.1%205-1.7%2010.2-1.7%2015.5%200%2052.6%2059.2%2095.2%20132%2095.2%2073.1%200%20132.3-42.6%20132.3-95.2%200-5.3-.6-10.8-1.9-15.8%2031.3-16%2019.8-62.5-14.9-62.5zM302.8%20331c-18.2%2018.2-76.1%2017.9-93.6%200-2.2-2.2-6.1-2.2-8.3%200-2.5%202.5-2.5%206.4%200%208.6%2022.8%2022.8%2087.3%2022.8%20110.2%200%202.5-2.2%202.5-6.1%200-8.6-2.2-2.2-6.1-2.2-8.3%200zm7.7-75c-13.6%200-24.6%2011.1-24.6%2024.9%200%2013.6%2011.1%2024.6%2024.6%2024.6%2013.8%200%2024.9-11.1%2024.9-24.6%200-13.8-11-24.9-24.9-24.9z'/%3e%3c/svg%3e){kind=small}