【问题标题】:Getting metrics exception with CassandraConfig using Springboot使用 Spring Boot 使用 Cassandra Config 获取指标异常
【发布时间】:2019-04-30 21:51:34
【问题描述】:

我在应用程序启动期间遇到以下异常。 @EnableCassandraRepositoriesApplication 类的一部分。 我正在使用弹簧数据卡桑德拉。 我尝试从不同的依赖项中排除指标,但它们都不起作用。

以下是我使用的错误和配置代码以及依赖项。

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'session' defined in class path resource [com/lte/assessmentanalytics/config/CassandraConfig.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: com/codahale/metrics/Metric

Cassandra 配置

    @Configuration
    public class CassandraConfig extends AbstractCassandraConfiguration {
        @Value("${cassandra.contactpoints}")
        private String contactPoints;
        @Value("${cassandra.port}")
        private int port;
        @Value("${cassandra.keyspace}")
        private String keySpace;
        @Value("${cassandra.basePackages}")
        private String basePackages;

        @Autowired
        private Environment environment;

        @Override
        protected String getKeyspaceName() {
            return keySpace;
        }

        @Override
        @Bean
        public CassandraClusterFactoryBean cluster() {
            final CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean();
            cluster.setContactPoints(contactPoints);
            cluster.setPort(port);
            return cluster;
        }

        @Override
        @Bean
        public CassandraMappingContext cassandraMapping() throws ClassNotFoundException {
            return new BasicCassandraMappingContext();
        }
    }

依赖关系

 <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-cassandra</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>com.datastax.cassandra</groupId>
                        <artifactId>cassandra-driver-core</artifactId>
                    </exclusion>
                        <exclusion>
                            <groupId>io.dropwizard.metrics</groupId>
                            <artifactId>metrics-core</artifactId>
                        </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>com.datastax.cassandra</groupId>
                <artifactId>cassandra-driver-core</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>io.dropwizard.metrics</groupId>
                        <artifactId>metrics-core</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>com.datastax.cassandra</groupId>
                <artifactId>cassandra-driver-mapping</artifactId>
            </dependency>

【问题讨论】:

    标签: spring-boot cassandra spring-data-cassandra


    【解决方案1】:

    似乎缺少 codahale 指标。尝试将其添加到您的 pom 中:

    <dependency>
         <groupId>com.codahale.metrics</groupId>
         <artifactId>metrics-core</artifactId>
         <version>3.0.2</version>
    </dependency>
    

    【讨论】:

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