HazelCast Tcp-IP的编程配置无需在集群中添加成员

时间:2017-01-03 22:24:46

标签: java hazelcast

以下是文档中提供的HazelCast编程配置,但无法在HazelCast群集中添加成员。

    Config cfg = new Config();
    Hazelcast.newHazelcastInstance(cfg);

    cfg.setProperty("hazelcast.initial.min.cluster.size","3"); 
    cfg.getGroupConfig().setName("DEV").setPassword("DEV-pass");
    NetworkConfig network = cfg.getNetworkConfig();
    JoinConfig join = network.getJoin();
    TcpIpConfig tcpipConfig=join.getTcpIpConfig();
    tcpipConfig.addMember("172.17.153.87").addMember("10.45.67.100")
    .setRequiredMember("192.168.10.100").setEnabled(true);
    network.getInterfaces().setEnabled(true).addInterface("10.45.67.*");
     System.out.println(tcpipConfig.isEnabled());
     System.out.println(tcpipConfig.getMembers());

    MapConfig mapCfg = new MapConfig();
    mapCfg.setName("testMap");
    mapCfg.setBackupCount(2);
    mapCfg.getMaxSizeConfig().setSize(10000);
    mapCfg.setTimeToLiveSeconds(300);

    MapStoreConfig mapStoreCfg = new MapStoreConfig();
    mapStoreCfg.setClassName("com.hazelcast.examples.DummyStore").setEnabled(true);
    mapCfg.setMapStoreConfig(mapStoreCfg);

    NearCacheConfig nearCacheConfig = new NearCacheConfig();
    nearCacheConfig.setMaxSize(1000).setMaxIdleSeconds(120).setTimeToLiveSeconds(300);
    mapCfg.setNearCacheConfig(nearCacheConfig);

    cfg.addMapConfig(mapCfg);

请查看代码,如果需要进一步修改则需要将成员添加到hazelcast集群中

2 个答案:

答案 0 :(得分:1)

添加此行以关闭多播以支持TCP,

join.getMulticastConfig().setEnabled(false);

将此行移至末尾,

Hazelcast.newHazelcastInstance(cfg);

您应该在构建实例之前完成配置。

答案 1 :(得分:0)

在Windows 下,Hazelcast(空Config)的开箱即用配置正常工作。
我只需要多次并行启动我的Java程序,并且Hazelcast节点互相发现。

在Linux 下,它更棘手:以下是工作示例 - 只是并行运行多个实例。

import java.util.*;
import com.hazelcast.config.*;
import com.hazelcast.core.*;

public class NewClass {

    public static void main(String[] args) {
        Config config = new Config();
        config.getNetworkConfig().setPublicAddress("127.0.0.1")
                .setPort(7771).setPortAutoIncrement(true);
        JoinConfig join = config.getNetworkConfig().getJoin();
        join.getMulticastConfig().setEnabled(false);
        join.getAwsConfig().setEnabled(false);
        join.getTcpIpConfig().setEnabled(true).setMembers(
                Arrays.asList(
                    "127.0.0.1:7771",
                    "127.0.0.1:7772",
                    "127.0.0.1:7773"));

        HazelcastInstance h = Hazelcast.newHazelcastInstance(config);
    }
}

第三次执行后的输出:

[snip]

Members [3] {
    Member [127.0.0.1]:7771 - 18f5aada-6f00-4077-814e-337517d5c1eb
    Member [127.0.0.1]:7772 - e9e2e7fd-e2fe-4c56-80c5-6b499d07b2b9
    Member [127.0.0.1]:7773 - 14fd377c-69fd-4c69-a9b8-086dd1cd7857 this
}

[snip]