记录一下springboot(2.2.3.RELEASE)+elasticsearch6.2.2遇到的问题

paj1234567892024-03-31 12:21

首先项目引入相关依赖如下：

复制代码 
<dependency>
   <groupId>org.elasticsearch</groupId>
   <artifactId>elasticsearch</artifactId>
   <version>6.2.2</version>
</dependency>
复制代码 
<dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-elasticsearch</artifactId>
   <version>3.1.0.RELEASE</version>
</dependency>

项目启动报错，异常信息如下：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'elasticsearchClient' defined in class path resource [org/springframework/boot/autoconfigure/data/elasticsearch/ElasticsearchAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.transport.TransportClient]: Factory method 'elasticsearchClient' threw exception; nested exception is java.lang.IllegalStateException: availableProcessors is already set to [4], rejecting [4]

at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:484) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambdadoGetBean0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at com.gy.hsxt.wx.card.access.HsOutthirdsWxCardAccessApplication.main(HsOutthirdsWxCardAccessApplication.java:17) [classes/:?]

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.transport.TransportClient]: Factory method 'elasticsearchClient' threw exception; nested exception is java.lang.IllegalStateException: availableProcessors is already set to [4], rejecting [4]

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

... 19 more

Caused by: java.lang.IllegalStateException: availableProcessors is already set to [4], rejecting [4]

at io.netty.util.NettyRuntime$AvailableProcessorsHolder.setAvailableProcessors(NettyRuntime.java:51) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]

at io.netty.util.NettyRuntime.setAvailableProcessors(NettyRuntime.java:87) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]

at org.elasticsearch.transport.netty4.Netty4Utils.setAvailableProcessors(Netty4Utils.java:85) ~[transport-netty4-client-6.2.2.jar:6.2.2]

at org.elasticsearch.transport.netty4.Netty4Transport.<init>(Netty4Transport.java:113) ~[transport-netty4-client-6.2.2.jar:6.2.2]

at org.elasticsearch.transport.Netty4Plugin.lambdagetTransports0(Netty4Plugin.java:86) ~[transport-netty4-client-6.2.2.jar:6.2.2]

at org.elasticsearch.client.transport.TransportClient.buildTemplate(TransportClient.java:179) ~[elasticsearch-6.2.2.jar:6.2.2]

at org.elasticsearch.client.transport.TransportClient.<init>(TransportClient.java:273) ~[elasticsearch-6.2.2.jar:6.2.2]

at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:128) ~[transport-6.2.2.jar:6.2.2]

at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:114) ~[transport-6.2.2.jar:6.2.2]

at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:104) ~[transport-6.2.2.jar:6.2.2]

at org.springframework.data.elasticsearch.client.TransportClientFactoryBean.buildClient(TransportClientFactoryBean.java:85) ~[spring-data-elasticsearch-3.1.0.RELEASE.jar:3.1.0.RELEASE]

at org.springframework.data.elasticsearch.client.TransportClientFactoryBean.afterPropertiesSet(TransportClientFactoryBean.java:80) ~[spring-data-elasticsearch-3.1.0.RELEASE.jar:3.1.0.RELEASE]

at org.springframework.boot.autoconfigure.data.elasticsearch.ElasticsearchAutoConfiguration.elasticsearchClient(ElasticsearchAutoConfiguration.java:59) ~[spring-boot-autoconfigure-2.2.3.RELEASE.jar:2.2.3.RELEASE]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_181]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181]

at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]

at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.3.RELEASE.jar:5.2.3.RELEASE]

... 19 more

解决方法：新建一个ElasticSearchConfig类初始化elasticsearchTemplate

复制代码 
@Configuration
@EnableElasticsearchRepositories(basePackages = "com.gy.hsxt.geoaddress.access.repository")
public class ElasticSearchConfig {
   
    /**
     * 创建模板
     * @return
     */
    @Bean
    public ElasticsearchOperations elasticsearchTemplate() {

        System.setProperty("es.set.netty.runtime.available.processors", "false");
        String clusterNodes="192.168.12.50";
        String clusterName="elasticsearch";

        TransportClient client=null;

        try {
            Settings settings = Settings.builder()
                    .put("cluster.name", clusterName)
                    .put("client.transport.sniff", false)
                    .build();
            client =new PreBuiltTransportClient(settings);
            //地址转换
            if(StringUtils.isNotBlank(clusterNodes)){
                for (String clusterNode : StringUtils.split(clusterNodes, ",")) {
                    String ip = StringUtils.substringBeforeLast(clusterNode, ":");
                    String port = StringUtils.substringAfterLast(clusterNode, ":");
                    client.addTransportAddress(new TransportAddress(InetAddress.getByName(ip), Integer.valueOf(port)));
                }
            }
        } catch (Exception e) {
        }

        return new ElasticsearchTemplate(client);
    }

    /**
     * 防止netty的bug
     * java.lang.IllegalStateException: availableProcessors is already set to [4], rejecting [4]
     */
    @PostConstruct
    void init() {
        System.setProperty("es.set.netty.runtime.available.processors", "false");
    }
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