配置 Data Grid 集群，以使用您提供的密钥存储中的 secret 密钥加密 JGroups 消息。
流程
创建包含 secret 密钥的密钥存储。
将密钥存储放在集群中每个节点的 classpath 上。
对于 Data Grid Server，您要将密钥存储放在 $RHDG_HOME 目录中。
将 SYM_ENCRYPT 协议添加到 Data Grid 配置中的 JGroups 堆栈。
<infinispan>
<jgroups>
<!-- Creates a secure JGroups stack named "encrypt-tcp" that extends the default TCP stack. -->
<stack name="encrypt-tcp" extends="tcp">
<!-- Adds a keystore from which nodes obtain secret keys. -->
<!-- Uses the stack.combine and stack.position attributes to insert SYM_ENCRYPT into the default TCP stack after VERIFY_SUSPECT2. -->
<SYM_ENCRYPT keystore_name="myKeystore.p12"
keystore_type="PKCS12"
store_password="changeit"
key_password="changeit"
alias="myKey"
stack.combine="INSERT_AFTER"
stack.position="VERIFY_SUSPECT2"/>
</stack>
</jgroups>
<cache-container name="default" statistics="true">
<!-- Configures the cluster to use the JGroups stack. -->
<transport cluster="${infinispan.cluster.name}"
stack="encrypt-tcp"
node-name="${infinispan.node.name:}"/>
</cache-container>
</infinispan>
<infinispan>
<jgroups>
<!-- Creates a secure JGroups stack named "encrypt-tcp" that extends the default TCP stack. -->
<stack name="encrypt-tcp" extends="tcp">
<!-- Adds a keystore from which nodes obtain secret keys. -->
<!-- Uses the stack.combine and stack.position attributes to insert SYM_ENCRYPT into the default TCP stack after VERIFY_SUSPECT2. -->
<SYM_ENCRYPT keystore_name="myKeystore.p12"
keystore_type="PKCS12"
store_password="changeit"
key_password="changeit"
alias="myKey"
stack.combine="INSERT_AFTER"
stack.position="VERIFY_SUSPECT2"/>
</stack>
</jgroups>
<cache-container name="default" statistics="true">
<!-- Configures the cluster to use the JGroups stack. -->
<transport cluster="${infinispan.cluster.name}"
stack="encrypt-tcp"
node-name="${infinispan.node.name:}"/>
</cache-container>
</infinispan>
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验证
当您启动 Data Grid 集群时，以下日志消息表示集群使用 secure JGroups 堆栈：
[org.infinispan.CLUSTER] ISPN000078: Starting JGroups channel cluster with stack <encrypted_stack_name>
[org.infinispan.CLUSTER] ISPN000078: Starting JGroups channel cluster with stack <encrypted_stack_name>
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只有在使用 SYM_ENCRYPT 且可以从共享密钥存储获取 secret 密钥时，数据网格节点才能加入集群。否则，以下信息会写入 Data Grid 日志：
[org.jgroups.protocols.SYM_ENCRYPT] <hostname>: received message without encrypt header from <hostname>; dropping it
[org.jgroups.protocols.SYM_ENCRYPT] <hostname>: received message without encrypt header from <hostname>; dropping it
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