spring boot出现问题时，配置的节点均不可用

Question

嗨，朋友们，我正在用elastic search开发spring boot项目，我已经在本地机器上安装了elastic search，我已经在elastic search中安装了Head插件。我的弹性搜索设置正确，显示绿色标志。我的项目中的application-dev.yml文件如下：

server:
    port: 8080

liquibase:
    context: dev

spring:
    profiles:
        active: dev
    datasource:
        dataSourceClassName: org.h2.jdbcx.JdbcDataSource
        url: jdbc:h2:mem:jhipster;DB_CLOSE_DELAY=-1
        databaseName:
        serverName:
        username:
        password:

    jpa:
        database-platform: com.aquevix.demo.domain.util.FixedH2Dialect
        database: H2
        openInView: false
        show_sql: true
        generate-ddl: false
        hibernate:
            ddl-auto: none
            naming-strategy: org.hibernate.cfg.EJB3NamingStrategy
        properties:
            hibernate.cache.use_second_level_cache: true
            hibernate.cache.use_query_cache: false
            hibernate.generate_statistics: true
            hibernate.cache.region.factory_class: org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory
    data:
        elasticsearch:
            cluster-name: elasticsearch
            cluster-nodes: localhost:9200
    messages:
        cache-seconds: 1
    thymeleaf:
        mode: XHTML
        cache: false
    activemq:
        broker-url: tcp://localhost:61616



metrics:
    jmx.enabled: true
    spark:
        enabled: false
        host: localhost
        port: 9999
    graphite:
        enabled: false
        host: localhost
        port: 2003
        prefix: TestApollo

cache:
    timeToLiveSeconds: 3600
    ehcache:
        maxBytesLocalHeap: 16M

Elastic search服务正在我的机器上运行，但是当我尝试保存entity时，首先在mysql中保存entity，然后使用elastic search repository在elastic search中保存entity，但在将entity保存到elastic时抛出错误：

Hibernate: insert into EMPLOYEE (id, rollno) values (null, ?)
[ERROR] com.aquevix.demo.aop.logging.LoggingAspect - Exception in com.aquevix.demo.web.rest.EmployeeResource.create() with cause = null
org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: []
        at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:298) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:214) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.client.transport.support.InternalTransportClient.execute(InternalTransportClient.java:105) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.client.support.AbstractClient.index(AbstractClient.java:94) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.client.transport.TransportClient.index(TransportClient.java:331) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.action.index.IndexRequestBuilder.doExecute(IndexRequestBuilder.java:313) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:91) ~[elasticsearch-1.3.2.jar:na]
        at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:65) ~[elasticsearch-1.3.2.jar:na]
        at org.springframework.data.elasticsearch.core.ElasticsearchTemplate.index(ElasticsearchTemplate.java:431) ~[spring-data-elasticsearch-1.1.3.RELEASE.jar:na]
        at org.springframework.data.elasticsearch.repository.support.AbstractElasticsearchRepository.save(AbstractElasticsearchRepository.java:138) ~[spring-data-elasticsearch-1.1.3.RELEASE.jar:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_51]

我也使用了9300端口而不是9200端口，但是什么都不能工作。我已经尝试了所有的方法，但我能找到解决方案，请帮帮我！

Answer 1

我发现ES2.0解决方案不能正常工作，所以我重新安装了ES1.7.3，现在它在我的情况下是有效的。complete details here!

Answer 2

我和你有同样的问题，使用Jhipster也有同样的问题。正如前面提到的，一种可能的解决方案是降级elasticsearch实例，但如果你不想降级，下面是我使用的方法：

将

• spring boot更新到lastet版本(>不使用autoconfiguration.

手动更新 ElasticsearchTemplate

如果您需要更多信息，请查看此帖子：http://ignaciosuay.com/how-to-connect-spring-boot-to-elasticsearch-2-x-x/

Answer 3

您似乎正在使用JHipster (如果我可以补充的话，这是一个很棒的工具集)，它使用

org.springframework.boot:spring-boot-starter-data-elasticsearch：-> 1.3.3版本

这只适用于2.0版本以下的ElasticSearch，所以只需安装ElasticSearch 1.7.3并运行代码即可