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无法使用 Java API 连接到 ElasticSearch 服务器

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时间：2020-08-12 18:25:39 　来源:igfitidea点击:

Can't connect to ElasticSearch server using Java API

javaelasticsearch

提问by k9m

I am trying to connect to an ElasticSearch server using the Java API. I using elasticsearch service to start/stop and elasticsearch head for visualising the cluster. The cluster/node is active, the REST API works fine via curl on 9200. I have read pretty much every posts about this topic, yet I can't get it working, below are my details:

我正在尝试使用 Java API 连接到 ElasticSearch 服务器。我使用 elasticsearch 服务来启动/停止和 elasticsearch head 来可视化集群。集群/节点处于活动状态，REST API 通过 9200 上的 curl 可以正常工作。我已经阅读了几乎所有关于此主题的帖子，但我无法使其正常工作，以下是我的详细信息：

I have tried all these:

我已经尝试了所有这些：

  1. Using localhost,devhost1,127.0.0.1,or the actual IP on the network in TransportClient
  2. Uncommenting the IP properties in config.yaml and putting 127.0.0.1 (server)
  3. Checking if port 9300 is available, it is.
  1. 在 TransportClient 中使用 localhost、devhost1、127.0.0.1 或网络上的实际 IP
  2. 取消注释 config.yaml 中的 IP 属性并放置 127.0.0.1（服务器）
  3. 检查端口 9300 是否可用，它是。

...9200/_cluster/nodes

...9200/_cluster/节点

{
  "ok": true,
  "cluster_name": "test",
  "nodes": {
    "NLVBbJpJTZWefeI2kQt3Tg": {
      "name": "inventory_management",
      "transport_address": "inet[/127.0.0.1:9300]",
      "hostname": "devhost1",
      "version": "0.90.5",
      "http_address": "inet[/127.0.0.1:9200]"
    }
  }
}

...9200/_cluster/health?pretty=true

...9200/_cluster/health?pretty=true

{
  "cluster_name" : "test",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 1,
  "number_of_data_nodes" : 1,
  "active_primary_shards" : 0,
  "active_shards" : 0,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0
}

Java Code:

Java代码：

Settings settings = ImmutableSettings.settingsBuilder().put("cluster.name", "test").put("node.name", "inventory_management").build();
Client client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress("localhost", 9300));
IndexResponse response = client.prepareIndex("twitter", "tweet", "1").setSource(json).execute().actionGet();

Exception:

例外：

org.elasticsearch.transport.NodeDisconnectedException: [][inet[localhost/127.0.0.1:9300]][/cluster/nodes/info]
org.elasticsearch.client.transport.NoNodeAvailableException: No node available
    at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:138)
    at org.elasticsearch.client.transport.support.InternalTransportClient.index(InternalTransportClient.java:124)
    at org.elasticsearch.client.transport.TransportClient.index(TransportClient.java:242)
    at org.elasticsearch.client.action.index.IndexRequestBuilder.doExecute(IndexRequestBuilder.java:219)
    at org.elasticsearch.client.action.support.BaseRequestBuilder.execute(BaseRequestBuilder.java:52)
    at org.elasticsearch.client.action.support.BaseRequestBuilder.execute(BaseRequestBuilder.java:47)

Log from Client (Java API):

从客户端登录（Java API）：

[2013-10-24 16:37:15,783][DEBUG][threadpool.cached        ] [Aragorn] Initializing cached thread pool with keep_alive[1m], scheduled_size[20]
[2013-10-24 16:37:15,809][DEBUG][client.transport         ] [Aragorn] node_sampler_interval[1s]
[2013-10-24 16:37:15,820][DEBUG][netty.channel.socket.nio.NioProviderMetadata] Using the autodetected NIO constraint level: 0
[2013-10-24 16:37:15,872][DEBUG][transport.netty          ] [Aragorn] Connected to node [[#temp#-1][inet[localhost/127.0.0.1:9300]]]
[2013-10-24 16:37:15,892][DEBUG][transport.netty          ] [Aragorn] Disconnected from [[#temp#-1][inet[localhost/127.0.0.1:9300]]]
[2013-10-24 16:37:15,894][DEBUG][client.transport         ] [Aragorn] Failed to get node info from [#temp#-1][inet[localhost/127.0.0.1:9300]], removed from nodes list
org.elasticsearch.transport.NodeDisconnectedException: [][inet[localhost/127.0.0.1:9300]][/cluster/nodes/info]

+++++++++++++++++++++++

+++++++++++++++++++++++++++

Tried with Unicast same error in the Java API.

在 Java API 中尝试使用 Unicast 相同的错误。

discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: "localhost" # Tried with devhost1 127.0.0.1 as well and ["localhost"] too

This is the server log:

这是服务器日志： 

[2013-10-25 13:49:58,379][INFO ][node                     ] [inventory_management] version[0.90.5], pid[2426], build[c8714e8/2013-09-17T12:50:20Z]
[2013-10-25 13:49:58,379][INFO ][node                     ] [inventory_management] initializing ...
[2013-10-25 13:49:58,382][INFO ][plugins                  ] [inventory_management] loaded [], sites []
[2013-10-25 13:49:59,853][INFO ][node                     ] [inventory_management] initialized
[2013-10-25 13:49:59,853][INFO ][node                     ] [inventory_management] starting ...
[2013-10-25 13:49:59,937][INFO ][transport                ] [inventory_management] bound_address {inet[/0:0:0:0:0:0:0:0:9300]}, publish_address {inet[/192.168.1.50:9300]}
[2013-10-25 13:50:02,960][INFO ][cluster.service          ] [inventory_management] new_master [inventory_management][2-uG1xVNSSiLo5RVRrjbGg][inet[/192.168.1.50:9300]], reason: zen-disco-join (elected_as_master)
[2013-10-25 13:50:02,972][INFO ][discovery                ] [inventory_management] test/2-uG1xVNSSiLo5RVRrjbGg
[2013-10-25 13:50:02,989][INFO ][http                     ] [inventory_management] bound_address {inet[/0:0:0:0:0:0:0:0:9200]}, publish_address {inet[/192.168.1.50:9200]}
[2013-10-25 13:50:02,989][INFO ][node                     ] [inventory_management] started
[2013-10-25 13:50:03,024][INFO ][gateway                  ] [inventory_management] recovered [0] indices into cluster_state
[2013-10-25 13:50:09,399][WARN ][transport.netty          ] [inventory_management] exception caught on transport layer [[id: 0x02649775, /127.0.0.1:50028 => /127.0.0.1:9300]], closing connection
java.io.StreamCorruptedException: invalid internal transport message format
    at org.elasticsearch.transport.netty.SizeHeaderFrameDecoder.decode(SizeHeaderFrameDecoder.java:27)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:425)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)
[2013-10-25 13:50:09,403][WARN ][transport.netty          ] [inventory_management] exception caught on transport layer [[id: 0x02649775, /127.0.0.1:50028 :> /127.0.0.1:9300]], closing connection
java.io.StreamCorruptedException: invalid internal transport message format
    at org.elasticsearch.transport.netty.SizeHeaderFrameDecoder.decode(SizeHeaderFrameDecoder.java:27)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:425)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.cleanup(FrameDecoder.java:482)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.channelDisconnected(FrameDecoder.java:365)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:102)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireChannelDisconnected(Channels.java:396)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.close(AbstractNioWorker.java:361)
    at org.elasticsearch.common.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:81)
    at org.elasticsearch.common.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:36)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:574)
    at org.elasticsearch.common.netty.channel.Channels.close(Channels.java:812)
    at org.elasticsearch.common.netty.channel.AbstractChannel.close(AbstractChannel.java:197)
    at org.elasticsearch.transport.netty.NettyTransport.exceptionCaught(NettyTransport.java:501)
    at org.elasticsearch.transport.netty.MessageChannelHandler.exceptionCaught(MessageChannelHandler.java:228)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377)
    at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireExceptionCaught(Channels.java:525)
    at org.elasticsearch.common.netty.channel.AbstractChannelSink.exceptionCaught(AbstractChannelSink.java:48)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.notifyHandlerException(DefaultChannelPipeline.java:658)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:566)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
    at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
    at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
    at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:109)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)
    at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:90)
    at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
    at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
    at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)

+++++++++++++++++++++++
+++++++++++++++++++++++

Java version:

爪哇版：

java version "1.7.0_25"
OpenJDK Runtime Environment (IcedTea 2.3.12) (7u25-2.3.12-4ubuntu3)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)

+++++++++++++++++++++++
+++++++++++++++++++++++
+++++++++++++++++++++++

Issue has been solved as per below. Make sure your client and server versions are in sync!

问题已解决如下。确保您的客户端和服务器版本同步！

回答by sxc731

Just so this question is marked answered for others who may experience the same issue (the answer is actually at the end of the question).

正因为如此，这个问题被标记为其他可能遇到同样问题的人的回答（答案实际上在问题的末尾）。

I ran into the same issue and it turned out to be a discrepancy between the version of the JAR used by the Java client and the version the server was running. Your best bet is to ensure an exact match, then the instructions given herejust work w/o any tweaking.

我遇到了同样的问题，结果是 Java 客户端使用的 JAR 版本与服务器运行的版本之间存在差异。最好的办法是确保完全匹配，然后此处给出的说明无需任何调整即可工作。

Another thing to check is that your Java client is using the correct port, which is notthe one used by http clients. The correct port defaults to 9300 rather than 9200, which is used by the latter.

要检查的另一件事是您的 Java 客户端使用的是正确的端口，而不是http 客户端使用的端口。正确的端口默认为 9300 而不是 9200，后者使用。

回答by Kit Menke

In case anybody else stumbles on this thread, I found out another reason you could receive this error is because the cluster_namehas been changed to something other than the default.

万一其他人在此线程上绊倒，我发现您可能收到此错误的另一个原因是因为cluster_name已更改为默认值以外的其他内容。

To see your current cluser_name:

查看您当前的cluser_name:

curl -XGET localhost:9200/_cluster/nodes?pretty=true

Use code similar to what OP has above:

使用类似于 OP 上面的代码：

Settings settings = ImmutableSettings.settingsBuilder()
    .put("cluster.name", "test").build();
Client client = new TransportClient(settings).addTransportAddress(new InetSocketTransportAddress("localhost", 9300));

Source: http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html

来源：http: //www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html

回答by Andy

This is for users who are using spring-boot spring-data elasticsearch. Please ensure that the version of your client is the same as the server.

这适用于使用 spring-boot spring-data elasticsearch 的用户。请确保您的客户端版本与服务器版本相同。

<library name="Gradle: org.elasticsearch:elasticsearch:1.5.2">
  <CLASSES>
    <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.elasticsearch/elasticsearch/1.5.2/47aafc6bf8f23ed8dcbf6a1db174fb0b8e44a8db/elasticsearch-1.5.2.jar!/" />
  </CLASSES>
  <JAVADOC />
  <SOURCES>
    <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.elasticsearch/elasticsearch/1.5.2/d1e0b7b758ce7bd5d6e3757896054b09f28f372d/elasticsearch-1.5.2-sources.jar!/" />
  </SOURCES>
</library>

回答by londox

First, version is really important, Java API is strong related with the version you are using,

首先，版本真的很重要，Java API 与您使用的版本密切相关，

This solution works in elasticSearch v 5.4.1 with java 8

此解决方案适用于带有 java 8 的 elasticSearch v 5.4.1

make sure that you are getting all dependencies, and the child dependencies(not only elasticSearch jar), use maven, ivy etc for getting the dependencies tree.

确保您正在获取所有依赖项和子依赖项（不仅是 elasticSearch jar），使用 maven、ivy 等获取依赖项树。

in ivy for example :

以常春藤为例： 

 <!-- https://mvnrepository.com/artifact/org.elasticsearch.client/transport -->
  <dependency org="org.elasticsearch.client" name="transport" rev="5.4.1"  conf="default"/>

//--------------------- then in a class you can call:

//----------------- 然后在一个类中你可以调用： 

 TransportClient client;

    client = new PreBuiltTransportClient(Settings.EMPTY).addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

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