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java - 无法使用 Java API 连接到 ElasticSearch 服务器

转载 作者：IT老高 更新时间：2023-10-28 20:45:40 28 4
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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 头来可视化集群。集群/节点处于 Activity 状态，REST API 通过 curl 在 9200 上运行良好。我已经阅读了几乎所有关于这个主题的帖子，但我无法让它工作，以下是我的详细信息:

这些我都试过了:

  1. 在 TransportClient 中使用 localhost、devhost1、127.0.0.1 或网络上的实际 IP
  2. 在 config.yaml 中取消注释 IP 属性并放入 127.0.0.1(服务器)
  3. 检查端口 9300 是否可用。

...9200/_cluster/nodes

{
  "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

{
  "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 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();

异常(exception):

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)

来自客户端的日志(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]

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

在 Java API 中尝试单播同样的错误。

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

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$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$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$1.run(DeadLockProofWorker.java:42)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)

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

Java 版本:

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)

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

问题已按以下方式解决。确保您的客户端和服务器版本同步!

最佳答案

只是为了让可能遇到相同问题的其他人将此问题标记为已回答(答案实际上在问题的末尾)。

我遇到了同样的问题，结果证明是 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。您最好的选择是确保完全匹配，然后给出here 的说明。无需任何调整即可工作。

要检查的另一件事是您的 Java 客户端是否使用了正确的端口，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，后者使用的是 9200。

关于java - 无法使用 Java API 连接到 ElasticSearch 服务器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19570911/

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