spring boot 数据 cassandra 反应式 JmxReporter 问题

Question

我将我的项目更新为 spring-boot 版本 2.1.0.RELEASE。
现在我收到以下错误：

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.cassandra.ReactiveSession]: Factory method 'reactiveSession' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'session' defined in class path resource [ch/sbb/kat/fc/config/CassandraConfig.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
    at org.springframework.beans.factory.support.ConstructorResolver.lambda$instantiate$2(ConstructorResolver.java:615)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:614)
    ... 120 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'session' defined in class path resource [ch/sbb/kat/fc/config/CassandraConfig.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1745)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:339)
    at ch.sbb.kat.fc.config.CassandraConfig$$EnhancerBySpringCGLIB$$a22674d7.session(<generated>)
    at org.springframework.data.cassandra.config.AbstractCassandraConfiguration.getRequiredSession(AbstractCassandraConfiguration.java:66)
    at org.springframework.data.cassandra.config.AbstractReactiveCassandraConfiguration.reactiveSession(AbstractReactiveCassandraConfiguration.java:47)
    at ch.sbb.kat.fc.config.CassandraConfig$$EnhancerBySpringCGLIB$$a22674d7.CGLIB$reactiveSession$7(<generated>)
    at ch.sbb.kat.fc.config.CassandraConfig$$EnhancerBySpringCGLIB$$a22674d7$$FastClassBySpringCGLIB$$7973a63.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363)
    at ch.sbb.kat.fc.config.CassandraConfig$$EnhancerBySpringCGLIB$$a22674d7.reactiveSession(<generated>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
    ... 123 more
Caused by: java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
    at com.datastax.driver.core.Metrics.<init>(Metrics.java:146)
    at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1501)
    at com.datastax.driver.core.Cluster.init(Cluster.java:208)
    at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:376)
    at com.datastax.driver.core.Cluster.connect(Cluster.java:332)
    at org.springframework.data.cassandra.config.CassandraCqlSessionFactoryBean.connect(CassandraCqlSessionFactoryBean.java:89)
    at org.springframework.data.cassandra.config.CassandraCqlSessionFactoryBean.afterPropertiesSet(CassandraCqlSessionFactoryBean.java:82)
    at org.springframework.data.cassandra.config.CassandraSessionFactoryBean.afterPropertiesSet(CassandraSessionFactoryBean.java:59)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.lambda$invokeInitMethods$5(AbstractAutowireCapableBeanFactory.java:1795)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1794)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1741)
    ... 143 more
Caused by: java.lang.ClassNotFoundException: com.codahale.metrics.JmxReporter
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 155 more

使用本期介绍的属性https://github.com/spring-projects/spring-boot/issues/14778似乎对解决我的问题没有效果。

如何禁用 cassandra 的 jmx？

我当前的 cassandra 配置如下所示：

@Configuration
@EnableReactiveCassandraRepositories({"repository"})
public class CassandraConfig extends AbstractReactiveCassandraConfiguration {

    @Value("${cassandra.host}")
    private String host;

    @Override
    protected String getKeyspaceName() {
        return "keyspace";
    }

    @Override
    public String[] getEntityBasePackages() {
        return new String[]{"model"};
    }

    @Override
    public SchemaAction getSchemaAction() {
        return SchemaAction.CREATE_IF_NOT_EXISTS;
    }

    @Override
    public String getContactPoints() {
        return host;
    }
}

Answer 1

spring.data.cassandra.jmx-enabled 属性在 Spring Boot 自动配置 Cassandra Cluster bean 时使用。通过扩展AbstractReactiveCassandraConfiguration，您将关闭此自动配置，转而支持AbstractClusterConfiguration 创建的Cluster bean，它是AbstractReactiveCassandraConfiguration 的超类。结果，该属性无效。

有两种方法可以解决您的问题：

1. 删除您的 AbstractReactiveCassandraConfiguration 子类并使用各种 spring.data.cassandra.* 属性来配置内容。
2. 在CassandraConfig 中覆盖AbstractClusterConfiguration 上的cluster，调用super.cluster() 以获取CassandraClusterFactoryBean，然后在返回工厂bean 之前调用setJmxReportingEnabled(false)。

或者，如果您没有在应用程序的其他地方使用 Dropwizard，则可以通过覆盖 pom.xml 或 build.gradle 中的 dropwizard-metrics.version 属性来降级到与 Cassandra 的 JMX 报告兼容的旧版本。

Answer 2

除了像 Andy Wilkinson 提到的那样覆盖 cluster 之外，您还可以覆盖 getMetricsEnabled 以便始终返回 false。

@Override
protected boolean getMetricsEnabled() { return false; }

Answer 3

我在这里尝试了答案，我不知道如何但错误仍然存​​在。 我从docs.datastax.com 读到这篇文章，他们谈到将Metrics 4 中的JMX reporting 移动到一个单独的模块metrics-jmx。他们明确表示这可能会导致问题/错误。

要解决此问题，我只需调用此方法 .withoutJMXReporting()，如下所示。

Cluster cluster = Cluster.builder()
        .withoutJMXReporting()
        .build();

你可以悄悄关注here

Answer 4

包含旧版本的库也修复了问题：

implementation("io.dropwizard.metrics:metrics-core:3.2.2")

Answer 5

@豆 公共 CassandraClusterFactoryBean 集群（）{ CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean(); cluster.setContactPoints(environment.getProperty("spring.data.cassandra.contact-points")); cluster.setPort(Integer.parseInt(environment.getProperty("spring.data.cassandra.port"))); cluster.setJmxReportingEnabled(false); 返回集群； }

cluster.setJmxReportingEnabled(false) 似乎是答案。