我正在尝试使用TransportClient连接到Java应用程序的Elasticsearch集群。
我已成功测试连接到本地运行的群集。
现在我们在EC2-Cloud中设置了一个远程集群。通过REST接口访问它可以正常工作，Kibana也可以工作。
我可以直接在Elasticsearch节点上成功运行我的应用程序。
但是，当我尝试从另一台主机远程连接时，日志表明连接成功，但随后立即失败并且＃34;已建立的连接被主机中的软件中止＆＃34;。
我已经验证服务器和客户端都运行相同版本的Elasticsearch。此外，防火墙配置应允许在端口9300上进行通信，因为群集节点之间也需要相互通信。
Okt 21, 2015 6:50:24 PM com.example.elasticsearch.visit.nativescript.ElasticsearchTest main
INFO: Setting adress to myhost.com:9300
Okt 21, 2015 6:50:24 PM org.elasticsearch.client.transport.TransportClientNodesService addTransportAddresses
FINE: [Master Man] adding address [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]]
Okt 21, 2015 6:50:24 PM org.elasticsearch.client.transport.TransportClientNodesService$SimpleNodeSampler doSample
FINEST: [Master Man] connecting to listed node (light) [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]]
Okt 21, 2015 6:50:24 PM org.elasticsearch.transport.netty.NettyTransport connectToNode
FINE: [Master Man] connected to node [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]]
Okt 21, 2015 6:50:24 PM org.elasticsearch.common.breaker.ChildMemoryCircuitBreaker addWithoutBreaking
FINEST: [Master Man] [REQUEST] Adjusted breaker by [16440] bytes, now [16440]
Okt 21, 2015 6:50:24 PM org.elasticsearch.transport.TransportService$Adapter traceRequestSent
FINEST: [Master Man] [0][cluster:monitor/nodes/info] sent to [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]] (timeout: [5s])
Okt 21, 2015 6:50:24 PM org.elasticsearch.common.breaker.ChildMemoryCircuitBreaker addWithoutBreaking
FINEST: [Master Man] [REQUEST] Adjusted breaker by [-16440] bytes, now [0]
Okt 21, 2015 6:50:24 PM org.elasticsearch.transport.netty.NettyTransport exceptionCaught
FINEST: [Master Man] close connection exception caught on transport layer [[id: 0xd938d867, /x.x.x.x:60058 => myhost.com/1.1.1.1:9300]], disconnecting from relevant node
java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:192)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:64)
at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
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$1.run(DeadLockProofWorker.java:42)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Okt 21, 2015 6:50:24 PM org.elasticsearch.transport.netty.NettyTransport disconnectFromNode
FINE: [Master Man] disconnecting from [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]], channel closed event
Okt 21, 2015 6:50:24 PM org.elasticsearch.transport.netty.NettyTransport disconnectFromNode
FINEST: [Master Man] disconnected from [[#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]]], channel closed event
Okt 21, 2015 6:50:24 PM org.elasticsearch.client.transport.TransportClientNodesService$SimpleNodeSampler doSample
INFO: [Master Man] failed to get node info for [#transport#-1][LNZ123675N02][inet[myhost.com/1.1.1.1:9300]], disconnecting...
org.elasticsearch.transport.NodeDisconnectedException: [][inet[myhost.com/1.1.1.1:9300]][cluster:monitor/nodes/info] disconnected
Okt 21, 2015 6:50:24 PM com.example.elasticsearch.visit.nativescript.ElasticsearchTest main
INFO: Having: []
Exception in thread "main" org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: []
at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:305)
at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:200)
at org.elasticsearch.client.transport.support.InternalTransportClient.execute(InternalTransportClient.java:106)
at org.elasticsearch.client.support.AbstractClient.bulk(AbstractClient.java:167)
at org.elasticsearch.client.transport.TransportClient.bulk(TransportClient.java:370)
at org.elasticsearch.action.bulk.BulkRequestBuilder.doExecute(BulkRequestBuilder.java:166)
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:91)
at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:65)
at com.example.elasticsearch.visit.nativescript.ElasticsearchTest.main(ElasticsearchTest.java:68)
我的简单测试如下：
Settings settings = ImmutableSettings.settingsBuilder()
.put("cluster.name", "cluster-name")
.build();
logger.info("Creating client");
try (final TransportClient client = new TransportClient(settings)) {
logger.info("Setting adress to " + host + ":" + port);
client.addTransportAddress(new InetSocketTransportAddress(host, port));
logger.info("Having: " + client.connectedNodes());
BulkRequestBuilder bulkRequest = client.prepareBulk();
String json= "{ id: \"12345678\", value: \"value\" }";
bulkRequest.add(client.prepareIndex(INDEX, TYPE, "12345678").
setSource(json));
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if (bulkResponse.hasFailures()) {
logger.info("Could not write bulk: " + bulkResponse.buildFailureMessage());
} else {
logger.info("Wrote");
}
}
我还尝试验证一些常见的事情，比如集群名称未设置和其他。
此外，当我使用完全不同的端口时，我会按预期获得超时，而不是此错误消息。所以端口肯定表现不同。
我会从哪里开始看？这仍然是一个防火墙问题，连接只是在一段时间后被丢弃而不是立即被拒绝吗？
答案 0 :(得分：0)
通过更多测试，我发现公司防火墙正在以一种奇怪的方式干扰。当我在company-netowrk之外的机器上运行相同的客户端代码时，它可以正常工作。