java Apache Ignite嵌入式集群模式

Question

我运行了两个嵌入式模式的应用程序，配置如下：

public IgniteConfigurer config() {
    return cfg -> {
        // The node will be started as a client node.
        cfg.setClientMode(false);
        // Classes of custom Java logic will be transferred over the wire from this app.
        cfg.setPeerClassLoadingEnabled(false);
        // Setting up an IP Finder to ensure the client can locate the servers.
        final TcpDiscoveryMulticastIpFinder ipFinder = new TcpDiscoveryMulticastIpFinder();
        ipFinder.setAddresses(Collections.singletonList(cacheServerIp));
        cfg.setDiscoverySpi(new TcpDiscoverySpi().setIpFinder(ipFinder));
        // Cache Metrics log frequency. If 0 then log print disable.
        cfg.setMetricsLogFrequency(Integer.parseInt(cacheMetricsLogFrequency));
        // setting up storage configuration
        final DataStorageConfiguration storageCfg = new DataStorageConfiguration();
        storageCfg.getDefaultDataRegionConfiguration().setPersistenceEnabled(true);
        storageCfg.setStoragePath(cacheStorage);
        // setting up data region for storage
        final DataRegionConfiguration defaultRegion = new DataRegionConfiguration();
        defaultRegion.setName(cacheDefaultRegionName);
        // Sets initial memory region size. When the used memory size exceeds this value, new chunks of memory will be allocated
        defaultRegion.setInitialSize(Long.parseLong(cacheRegionInitSize));
        storageCfg.setDefaultDataRegionConfiguration(defaultRegion);
        cfg.setDataStorageConfiguration(storageCfg);
        cfg.setWorkDirectory(cacheStorage);
        final TcpCommunicationSpi communicationSpi = new TcpCommunicationSpi();
        // Sets message queue limit for incoming and outgoing messages
        communicationSpi.setMessageQueueLimit(Integer.parseInt(cacheTcpCommunicationSpiMessageQueueLimit));
        cfg.setCommunicationSpi(communicationSpi);
        final CacheCheckpointSpi cpSpi = new CacheCheckpointSpi();
        cfg.setCheckpointSpi(cpSpi);
        final FifoQueueCollisionSpi colSpi = new FifoQueueCollisionSpi();
        // Execute all jobs sequentially by setting parallel job number to 1.
        colSpi.setParallelJobsNumber(Integer.parseInt(cacheParallelJobs));
        cfg.setCollisionSpi(colSpi);
        // set failure handler for auto connection if ignite server stop/starts.
        cfg.setFailureHandler(new StopNodeFailureHandler());
    };
}

App1将数据放入缓存，其中asApp2从缓存读取数据。我已经设置了本地IP，即ipFinder.setAddresses(Collections.singletonList("127.0.0.1:47500..47509"));

因此，本地两个应用程序，即app1和app2，都在集群上连接。当我在服务器上使用相同的配置并更改IP时，即ipFinder.setAddresses(Collections.singletonList("server1.com:47500..47509"));

两台服务器，即app1和app2未在群集中连接

只有当所有应用程序（如app1和app2）都在同一台机器上时，它才能工作吗

Answer 1

尝试使用a static TcpDiscoveryVmIpFinder来定位问题。默认情况下，TcpDiscoveryMulticastIpFinder会尝试扫描所有可用主机以发现Ignite节点，根据超时情况，这可能需要一段时间

假设两个节点仍在同一台机器上运行，则可以保留本地主机配置：“127.0.0.1:47500..47509”。如果DNS名称“server1.com”解析为正确的IP地址，那么“server1.com:47500..47509”也应该起作用，这是检查这一点的最佳方法——只需运行ping命令来检查localhost和server1的工作方式。com正在被解决

如果你在不同的机器上运行，那么你需要一个地址列表，而不是一个单一的地址列表：“server1.com:47500..47509”，“server2.com:47500.47509”等等

还建议检查端口是否已打开，如果有许多不同的接口可用，则可能需要显式配置localHost