我想在neo4j数据上创建弹性搜索索引。 我提到https://github.com/neo4j-contrib/neo4j-elasticsearch和https://www.youtube.com/watch?v=SJLSFsXgOvA&ab_channel=AnmolAgrawal来创建neo4j的弹性搜索索引。
但在那之后，我在neo4j.log文件中遇到错误。
2016-11-08 12:20:09.825+0000 WARN Error updating ElasticSearch No Server is assigned to client to connect
io.searchbox.client.config.exception.NoServerConfiguredException: No Server is assigned to client to connect
at io.searchbox.client.AbstractJestClient$ServerPool.getNextServer(AbstractJestClient.java:132)
at io.searchbox.client.AbstractJestClient.getNextServer(AbstractJestClient.java:81)
at io.searchbox.client.http.JestHttpClient.prepareRequest(JestHttpClient.java:80)
at io.searchbox.client.http.JestHttpClient.executeAsync(JestHttpClient.java:60)
at org.neo4j.elasticsearch.ElasticSearchEventHandler.afterCommit(ElasticSearchEventHandler.java:81)
at org.neo4j.elasticsearch.ElasticSearchEventHandler.afterCommit(ElasticSearchEventHandler.java:27)
at org.neo4j.kernel.internal.TransactionEventHandlers.afterCommit(TransactionEventHandlers.java:149)
at org.neo4j.kernel.internal.TransactionEventHandlers.afterCommit(TransactionEventHandlers.java:47)
at org.neo4j.kernel.impl.api.TransactionHooks.afterCommit(TransactionHooks.java:75)
at org.neo4j.kernel.impl.api.KernelTransactionImplementation.afterCommit(KernelTransactionImplementation.java:541)
at org.neo4j.kernel.impl.api.KernelTransactionImplementation.commit(KernelTransactionImplementation.java:482)
at org.neo4j.kernel.impl.api.KernelTransactionImplementation.close(KernelTransactionImplementation.java:380)
at org.neo4j.server.rest.transactional.TransitionalTxManagementKernelTransaction.commit(TransitionalTxManagementKernelTransaction.java:92)
at org.neo4j.server.rest.transactional.TransactionHandle.closeContextAndCollectErrors(TransactionHandle.java:243)
at org.neo4j.server.rest.transactional.TransactionHandle.commit(TransactionHandle.java:151)
at org.neo4j.server.rest.web.TransactionalService.lambda$executeStatementsAndCommit$29(TransactionalService.java:202)
at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:71)
at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:57)
at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:302)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1510)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
如果修复此错误，或者如果neo4j节点的属性值发生更改，还有其他方法可以更新索引吗？
答案 0 :(得分：0)
您使用的是AWS ElasticSearch吗？它们不允许连接到单个节点。我在别处读过（来自AWS团队）： ＆＃34;查看日志，似乎＆＃39; i.s.c.config.discovery.NodeChecker＆＃39;正在尝试自动发现并连接到群集的各个节点。亚马逊一直在努力改进服务功能，但不幸的是，目前AWS并不允许客户端连接到群集的各个节点。相反，您可以使用URL＆＃34;
进行连接您需要以某种方式关闭Jest客户端中的节点发现：
ClientConfig clientConfig = new ClientConfig.Builder("http://localhost:9200").discoveryEnabled(false)
请参阅https://github.com/searchbox-io/Jest/blob/master/jest/README.md#node-discovery-through-nodes-api
答案 1 :(得分：0)
由于这是当您在Google上搜索此字符串时出现的少数页面之一，因此我想发表一个明确的说明（J. Dimeo的回答上面暗示了这一点，但并没有具体说明）。
在您的Graylog配置（对我来说是/etc/graylog/server/server.conf）中，将elasticsearch_discovery_enabled设置为false，然后重新发送服务。
就这样：）