Spring Cloud sleuth 内存泄漏问题

问题描述

我遇到了 spring cloud sleuth 的问题，因为它在我处理应用程序转储时正在泄漏内存：

13.05mb (40.3%) 的 Java Static org.springframework.cloud.sleuth.instrument.async.SleuthContextListener.CACHE 有什么作用

Spring Cloud 版本：Hoxton.SR8 Spring Boot 版本：2.3.3.RELEASE

请在下面找到 heapdump 报告：

https://heaphero.io/my-heap-report.jsp?p=YXJjaGl2ZWQvMjAyMS8wNS8yNS8tLWhlYXBkdW1wLTE2MjE5MjE0MzYyNTMuaHByb2YtNS00Ni0xLmpzb24=

请在下面找到我在我的应用程序中使用的代码仓库，同样在第一次运行时没有内存泄漏问题，但在连续运行时它显示了堆转储报告中提到的内存泄漏问题

   package com.example.demo;

import java.util.Date;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.Cacheevict;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;

@SpringBootApplication
@EnableCaching
@EnableScheduling
public class DemoApplication {

    Logger log = LoggerFactory.getLogger(DemoApplication.class);

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class,args);
    }

    @Cacheevict(cacheNames = { "config1","config2" },allEntries = true)
    @Scheduled(fixedDelay = 60000 * 5)
    public void cacheevict() {
        log.info("evicting all cache at: {}",new Date());
    }

}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.demo</groupId>
    <artifactId>demo-service</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo-service</name>
    <description>demo</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.amazonaws/aws-java-sdk-ses -->
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk-ses</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/javax.mail/javax.mail-api -->
        <dependency>
            <groupId>com.sun.mail</groupId>
            <artifactId>javax.mail</artifactId>
            <version>1.6.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.amqp</groupId>
            <artifactId>spring-rabbit</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.ht</groupId>
            <artifactId>subscription-core-library</artifactId>
            <version>0.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zipkin</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
    <repositories>

        <repository>
            <id>subscription-core-library-stg</id>
            <name>subscription-core-library-stg</name>
            <url>${repo.url}</url>
        </repository>

    </repositories>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR4</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>de.codecentric</groupId>
                <artifactId>spring-boot-admin-dependencies</artifactId>
                <version>2.1.6</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

TIA

解决方法

您拥有完整的版本组合。为什么你说你用的是 Hoxton 和 Boot 2.3 如果你不使用 Hoxton，你使用的是 Greenwich 和 Boot 2.1

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.4.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Greenwich.SR4</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

请升级到最新版本的 Sleuth 和 Boot。请通过转到 start.spring.io 并生成一个新项目来复制此问题。

更新：

在 2020.0.3 版本中，我更改了一个用于缓存 bean 工厂的类，现在它可以存储该类的哈希值。