無法使用Java API和Shield連接到ElasticSearch服務器

Question

我正在嘗試使用Java Api和shield連接到我的Elasticsearch服務器。 我可以使用感測插件（例如）並通過9200上的curl在現有群集上執行索引，獲取，刪除和搜索操作。帶屏蔽的Elasticsearch Web服務器

我使用相同的API連接我的Elasticsearch本地主機，並且工作正常，但是當我嘗試連接Web服務器時，總是會遇到相同的錯誤：

錯誤

1342 [main] DEBUG org.elasticsearch.shield.transport.netty  - [Benjamin Jacob Grimm] connected to node [{#transport#-1}{HOST_IP}{HOST/HOST_IP:9300}]
1431 [elasticsearch[Benjamin Jacob Grimm][generic][T#1]] DEBUG org.elasticsearch.shield.transport.netty  - [Benjamin Jacob Grimm] disconnecting from [{#transport#-1}{HOST_IP}{HOST/HOST_IP:9300}], channel closed event
1463 [main] INFO org.elasticsearch.client.transport  - [Benjamin Jacob Grimm] failed to get node info for {#transport#-1}{HOST_IP}{HOST/HOST_IP:9300}, disconnecting...
NodeDisconnectedException[[][HOST/HOST_IP:9300][cluster:monitor/nodes/liveness] disconnected]

... 9200 / _nodes

"cluster_name": "elasticsearch",
   "nodes": {
      "UYdZbCQKQZavtFYOoUpawg": {
         "name": "Desmond Pitt",
         "transport_address": "HOST_IP:9300",
         "host": "HOST_IP",
         "ip": "HOST_IP",
         "version": "2.3.3",
         "build": "218bdf1",
         "http_address": "HOST_IP:9200",
         "settings": {
            "pidfile": "/var/run/elasticsearch/elasticsearch.pid",
            "cluster": {
               "name": "elasticsearch"
            },
            "path": {
               "conf": "/etc/elasticsearch",
               "data": "/var/lib/elasticsearch",
               "logs": "/var/log/elasticsearch",
               "home": "/usr/share/elasticsearch"
            },
            "shield": {
               "http": {
                  "ssl": "true"
               },
               "https": {
                  "ssl": "true"
               },
               "transport": {
                  "ssl": "true"
               }
            },
            "name": "Desmond Pitt",
            "client": {
               "type": "node"
            },
            "http": {
               "cors": {
                  "allow-origin": "*",
                  "allow-headers": "Authorization, Origin, X-Requested-With, Content-Type, Accept",
                  "allow-credentials": "true",
                  "allow-methods": "OPTIONS, HEAD, GET, POST, PUT, DELETE",
                  "enabled": "true"
               }
            },
            "index": {
               "queries": {
                  "cache": {
                     "type": "opt_out_cache"
                  }
               }
            },
            "foreground": "false",
            "config": {
               "ignore_system_properties": "true"
            },
            "network": {
               "host": "HOST_IP",
               "bind_host": "0.0.0.0",
               "publish_host": "HOST_IP"
            }
         }

Java代碼：

TransportClient client = TransportClient.builder()
    .addPlugin(ShieldPlugin.class)
    .settings(Settings.builder()
        .put("cluster.name", ClusterName)
        .put("shield.user", "USER:PASSWORD")
        .build())
    .build()
    .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(HOST), 9300));

我已經嘗試按照``無法使用Java API連接到ElasticSearch服務器來同步我的Java API Java版本和服務器''中的說明進行操作，目前我正在使用：

Java API：

C:\Program Files\Java\jdk1.8.0_92

服務器：

"version": "1.8.0_91",
"vm_name": "OpenJDK 64-Bit Server VM",

我不知道使用... 0_91和0_92是否有任何問題，但似乎沒有什么區別，因為java API在我的本地主機服務器上工作正常。

如果您需要更多信息，請隨時詢問。 提前致謝！

更新：

我在elasticsearch.yml中所做的更改

shield.ssl.keystore.path:          /usr/share/elasticsearch/bin/shield/elastic.jks
shield.ssl.keystore.password:      password
shield.ssl.keystore.key_password:  password

shield.transport.ssl: true
shield.http.ssl: true
shield.https.ssl: true

network.host: HOST_IP
network.publish_host: HOST_IP
shield.ssl.hostname_verification.resolve_name: false

https：// HOST：9200 / _cluster / health？pretty = true的結果

{
   "cluster_name": "elasticsearch",
   "status": "yellow",
   "timed_out": false,
   "number_of_nodes": 1,
   "number_of_data_nodes": 1,
   "active_primary_shards": 5,
   "active_shards": 5,
   "relocating_shards": 0,
   "initializing_shards": 0,
   "unassigned_shards": 5,
   "delayed_unassigned_shards": 0,
   "number_of_pending_tasks": 0,
   "number_of_in_flight_fetch": 0,
   "task_max_waiting_in_queue_millis": 0,
   "active_shards_percent_as_number": 50
}

UPDATE2：

我嘗試根據官方文檔激活SSL，但遇到以下錯誤：

2082 [elasticsearch[Steel Serpent][transport_client_worker][T#1]{New I/O worker #1}] DEBUG org.elasticsearch.shield.transport.netty  - [Steel Serpent] SSL/TLS handshake failed, closing channel: null
java.nio.channels.ClosedChannelException
    at org.jboss.netty.handler.ssl.SslHandler.channelDisconnected(SslHandler.java:575)
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:102)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:396)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.close(AbstractNioWorker.java:360)
    at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:93)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

臨時解決方案

在嘗試之后，我按照Vladislav Kysliy的建議進行了操作，並禁用了SSL，它可以正常工作，但我正在尋找一種真正的解決方案，而不是臨時的解決方案。

Answer 1

如我所見，您啟用了SSL加密。 但是您的Java代碼沒有激活SSL。 根據官方文檔，您應該使用以下內容：

TransportClient client = TransportClient.builder()
.addPlugin(ShieldPlugin.class)
.settings(Settings.builder()
    .put("cluster.name", "myClusterName")
    .put("shield.user", "transport_client_user:changeme")
    .put("shield.ssl.keystore.path", "/path/to/client.jks") (1)
    .put("shield.ssl.keystore.password", "password")
    .put("shield.transport.ssl", "true")
    ...
    .build())

此外，我將在不進行任何加密的情況下測試我的代碼，並逐步添加一些新功能（例如SSL）進行配置和編碼。

UPD：說實話，遠程解決ssl問題非常棘手。 客戶端發送無效的SSL證書時，通常會出現此錯誤。 可能您需要禁用客戶端身份驗證

因為您使用SSL + Shield，所以主要的想法是逐步檢查功能：禁用SSL-在Java -API客戶端中簽入，啟用SSL-再次檢查。