6.3. 配置内部缓存以锁定

流程

1. 定义集群中存储集群锁定状态的节点数量。默认值为 -1，它将值复制到所有节点。

2. 为缓存可靠性指定以下值之一，该可靠性控制集群锁定在集群分割为分区或多个节点时的行为方式：

   • AVAILABLE ：任何分区中的节点都可以同时在锁定时操作。
   • CONSISTENT ：只有属于大多数分区的节点才能锁定。这是默认值。

   • 程序配置

     import org.infinispan.lock.configuration.ClusteredLockManagerConfiguration;
     import org.infinispan.lock.configuration.ClusteredLockManagerConfigurationBuilder;
     import org.infinispan.lock.configuration.Reliability;
     ...
     
     GlobalConfigurationBuilder global = GlobalConfigurationBuilder.defaultClusteredBuilder();
     
     final ClusteredLockManagerConfiguration config = global.addModule(ClusteredLockManagerConfigurationBuilder.class).numOwner(2).reliability(Reliability.AVAILABLE).create();
     
     DefaultCacheManager cm = new DefaultCacheManager(global.build());
     
     ClusteredLockManager clm1 = EmbeddedClusteredLockManagerFactory.from(cm);
     
     clm1.defineLock("lock");

   • 声明性配置

     <infinispan
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="urn:infinispan:config:14.0 https://infinispan.org/schemas/infinispan-config-14.0.xsd"
             xmlns="urn:infinispan:config:14.0">
     
         <cache-container default-cache="default">
             <transport/>
             <local-cache name="default">
                 <locking concurrency-level="100" acquire-timeout="1000"/>
             </local-cache>
             <clustered-locks xmlns="urn:infinispan:config:clustered-locks:14.0"
                              num-owners = "3"
                              reliability="AVAILABLE">
                 <clustered-lock name="lock1" />
                 <clustered-lock name="lock2" />
             </clustered-locks>
         </cache-container>
         <!-- Cache configuration goes here. -->
     </infinispan>