Question

我正在从REST API迁移到JAVA（因为我们希望从无数据节点优势中受益）。

我尝试以这种方式启动本地节点（启动对我来说似乎很好）：

 String localhostname = java.net.InetAddress.getLocalHost().getHostName();

        ImmutableSettings.Builder settings = ImmutableSettings.settingsBuilder();


        settings.put("cluster.name", clusterName);

        //Node name
        settings.put("node.name", localhostname + "-eslocalnode");

        //This is key to configure a data less node
        /*

        # 3. You want this node to be neither master nor data node, but
        #    to act as a "search load balancer" (fetching data from nodes,
        #    aggregating results, etc.)
        #
        # node.master: false
        # node.data: false

         */
        settings.put("node.master", false);
        settings.put("node.data", false);

        /*

        # By default, multiple nodes are allowed to start from the same installation location
        # to disable it, set the following:
        # node.max_local_storage_nodes: 1

         */
        settings.put("node.max_local_storage_nodes", 1);

        /*

        # Set a custom port for the node to node communication (9300 by default):
        #
        # transport.tcp.port: 9300
         */
        if (tcpPort > 0)
            settings.put("transport.tcp.port", tcpPort);
        else
            throw new IllegalArgumentException("tcpPort is not set");

        /*

        # Disable HTTP completely:
        #
        # http.enabled: false

        I don't want the HTTP api to be available on the local data-less nodes, so I disable it

         */

        settings.put("http.enabled", false);


        /**
         *
         * DISCOVERY PART!!!
         *
         *
         *
         */

        settings.put("discovery.zen.ping.timeout", discoveryPingTimeout);

        String unicastHostsArr[] = discoveryUnicastHosts.split("\\s*,\\s*");

        if (unicastHostsArr.length > 0)
            settings.put("discovery.zen.ping.unicast.hosts", unicastHostsArr);
        settings.put("discovery.zen.ping.multicast.enabled", false);
        Settings esSettings = settings.build();
        Node newNode = NodeBuilder.nodeBuilder().local(true).settings(esSettings).node();
        node = newNode.start();

（所有变量都已正确初始化我检查过）。特别是，unicastHosts只是一个主机，它是我们的开发服务器（它充满了重要数据），集群名称是相同的。

无论如何，如果我尝试使用like：

进行搜索

 Client client = node.client();
        ActionFuture<SearchResponse> searchFuture = client.search(new SearchRequest("journalindex"));
        SearchResponse search = searchFuture.get();

我明白了：

Exception in thread "main" java.util.concurrent.ExecutionException: org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];[SERVICE_UNAVAILABLE/2/no master];
    at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.getValue(BaseFuture.java:288)
    at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.get(BaseFuture.java:275)
    at org.elasticsearch.common.util.concurrent.BaseFuture.get(BaseFuture.java:113)
    at com.netaporter.cms.estests.test.EsDataLessNodeTest.main(EsDataLessNodeTest.java:32)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

关于为什么会发生这种情况的任何想法？

将Elasticsearch作为本地节点启动不起作用

0 个答案: