Why is the consumption thread for Log4j2 asynchronous logs still in TIMED_WAIT when the RingBuffer is full? #3514

xurengithub · 2025-03-03T05:32:40Z

xurengithub
Mar 3, 2025

The RingBuffer is now full and has blocked all log manipulation threads. Why is the RingBuffer consumer stuck in the TIMED_WAITING state, as if it were suspended indefinitely at parkNanos.

jstack info:
jstack.log

1.pom parent

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
        <relativePath/>
    </parent>


    <modules>
        <module>apollo-base</module>
        <module>apollo-core</module>
        <module>apollo-loan</module>
        <module>apollo-client</module>
    </modules>

    <!-- 版本控制 -->
    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <springboot.version>2.3.2.RELEASE</springboot.version>
        <spring-cloud.version>Hoxton.SR9</spring-cloud.version>
        <alibaba.cloud.version>2.2.6.RELEASE</alibaba.cloud.version>
        <nacos.client.version>2.0.2</nacos.client.version>
        <feign.verison>10.7.4</feign.verison>
        <rocketmq.version>4.3.2</rocketmq.version>
        <jedis.version>3.1.0-SNAPSHOT-pw</jedis.version>
        <mybatis.version>1.3.2</mybatis.version>
        <alibaba.druid>1.2.8</alibaba.druid>
        <lombok.version>1.18.16</lombok.version>
        <pageHelper.version>4.1.6</pageHelper.version>
        <log4j.version>2.17.1</log4j.version>
        <disruptor.version>3.3.4</disruptor.version>
        <fastjson.version>1.2.83</fastjson.version>
        <hutool.core.version>5.8.11</hutool.core.version>
        <hutool.all.version>5.7.12</hutool.all.version>
        <dynamic.datasource.version>3.5.2</dynamic.datasource.version>
        <sharding.jdbc.version>4.1.1</sharding.jdbc.version>
        <mysql.version>8.0.28</mysql.version>
        <jupiter-api.version>2.1.0</jupiter-api.version>
        <mars-phobos-api.version>2.2.0</mars-phobos-api.version>
        <servlet.api>3.0-alpha-1</servlet.api>
        <bcp.log.version>3.2.2-sw</bcp.log.version>
        <actuator.version>1.0-SNAPSHOT</actuator.version>
        <duga.version>1.0-SNAPSHOT</duga.version>
        <com.br.common.version>1.1.4-SNAPSHOT</com.br.common.version>
    </properties>

<dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>com.br</groupId>
                <artifactId>rs-actuator</artifactId>
                <version>${actuator.version}</version>
            </dependency>

            <!--spring-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                <version>${springboot.version}</version>
                <exclusions>
                    <exclusion>
                        <artifactId>spring-boot-starter-logging</artifactId>
                        <groupId>org.springframework.boot</groupId>
                    </exclusion>
                </exclusions>
            </dependency>

            <!-- spring-cloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--Spring Cloud Alibaba-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${alibaba.cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-client</artifactId>
                <version>${nacos.client.version}</version>
            </dependency>

            <!-- 单元测试 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <version>${springboot.version}</version>
                <scope>test</scope>
            </dependency>

            <!--feign-->
            <dependency>
                <groupId>io.github.openfeign</groupId>
                <artifactId>feign-httpclient</artifactId>
                <version>${feign.verison}</version>
            </dependency>

            <!-- jedisPool -->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>

            <!-- 添加分页插件 -->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pageHelper.version}</version>
            </dependency>

            <!-- mybatis spring -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.version}</version>
            </dependency>

            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>${alibaba.druid}</version>
            </dependency>


            <!-- 加入log4j2配置 -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-log4j2</artifactId>
                <version>${springboot.version}</version>
            </dependency>

            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-api</artifactId>
                <version>${log4j.version}</version>
            </dependency>

            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-web</artifactId>
                <version>${log4j.version}</version>
            </dependency>
            <dependency>
                <groupId>com.lmax</groupId>
                <artifactId>disruptor</artifactId>
                <version>${disruptor.version}</version>
            </dependency>

            <!-- rocketmq -->
            <dependency>
                <groupId>org.apache.rocketmq</groupId>
                <artifactId>rocketmq-client</artifactId>
                <version>${rocketmq.version}</version>
            </dependency>

            <!--fastjson-->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>${fastjson.version}</version>
            </dependency>

            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-core</artifactId>
                <version>${hutool.core.version}</version>
            </dependency>

            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.all.version}</version>
            </dependency>

            <!-- lombok -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>

            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>3.9</version>
            </dependency>


            <!--新分桶实验依赖-->
            <dependency>
                <groupId>com.br.experiment</groupId>
                <artifactId>experiment-core</artifactId>
                <version>1.0</version>
            </dependency>

            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>dynamic-datasource-spring-boot-starter</artifactId>
                <version>${dynamic.datasource.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.shardingsphere</groupId>
                <artifactId>sharding-jdbc-spring-boot-starter</artifactId>
                <version>${sharding.jdbc.version}</version>
            </dependency>


            <dependency>
                <groupId>com.br.solar.jupiter.api</groupId>
                <artifactId>solar-jupiter-api</artifactId>
                <version>${jupiter-api.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>net.logstash.logback</groupId>
                        <artifactId>logstash-logback-encoder</artifactId>
                    </exclusion>
                    <exclusion>
                        <groupId>cn.hutool</groupId>
                        <artifactId>hutool-all</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>com.br.solar.mars.phobos.api</groupId>
                <artifactId>solar-mars-phobos-api</artifactId>
                <version>${mars-phobos-api.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>net.logstash.logback</groupId>
                        <artifactId>logstash-logback-encoder</artifactId>
                    </exclusion>
                    <exclusion>
                        <groupId>cn.hutool</groupId>
                        <artifactId>hutool-all</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>

            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet.api}</version>
                <scope>provided</scope>
            </dependency>

            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-validation</artifactId>
                <version>${springboot.version}</version>
                <scope>provided</scope>
            </dependency>

            <!-- logcenter -->
            <dependency>
                <groupId>com.br.bcp</groupId>
                <artifactId>bcp-log-springboot-starter</artifactId>
                <version>${bcp.log.version}</version>
            </dependency>
            <dependency>
                <groupId>com.br.bcp</groupId>
                <artifactId>bcp-log-skywalking-log4j</artifactId>
                <version>${bcp.log.version}</version>
            </dependency>
            <dependency>
                <groupId>dom4j</groupId>
                <artifactId>dom4j</artifactId>
                <version>1.6.1</version>
            </dependency>
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>2.4</version>
            </dependency>
            <dependency>
                <groupId>com.br</groupId>
                <artifactId>br-sdk-java</artifactId>
                <version>1.2</version>
            </dependency>

            <!-- 日志采集告警组件依赖 -->
            <dependency>
                <groupId>com.br.duga</groupId>
                <artifactId>duga-collector</artifactId>
                <version>${duga.version}</version>
            </dependency>

            <dependency>
                <groupId>com.br.common</groupId>
                <artifactId>validate</artifactId>
                <version>${com.br.common.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

pom.xml dependencies

<properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>



        <dependency>
            <groupId>com.br.apollo</groupId>
            <artifactId>apollo-base</artifactId>
            <version>1.0-SNAPSHOT</version>
            <exclusions>
                <exclusion>
                    <artifactId>slf4j-log4j12</artifactId>
                    <groupId>org.slf4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>spring-boot-starter-logging</artifactId>
                    <groupId>org.springframework.boot</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <version>2.3.2.RELEASE</version>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!-- 加入log4j2配置 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
            <version>${springboot.version}</version>
        </dependency>

        <dependency>
            <groupId>com.lmax</groupId>
            <artifactId>disruptor</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        <!--新分桶实验依赖-->
        <dependency>
            <groupId>com.br.experiment</groupId>
            <artifactId>experiment-core</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>cn.hutool</groupId>
                    <artifactId>hutool-all</artifactId>
                </exclusion>
            </exclusions>
        </dependency>


        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!-- ali druid -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>${alibaba.druid}</version>
        </dependency>


        <dependency>
            <groupId>com.br.common</groupId>
            <artifactId>code</artifactId>
            <version>1.1.4-SNAPSHOT</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.rocketmq</groupId>
            <artifactId>rocketmq-client</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba.nacos</groupId>
                    <artifactId>nacos-client</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>2.1.2</version>
        </dependency>


        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
            <version>1.3.4</version>
        </dependency>
        <dependency>
            <groupId>com.br</groupId>
            <artifactId>br-sdk-java</artifactId>
        </dependency>

        <!--大禹日志中心-->
        <dependency>
            <groupId>com.br.bcp</groupId>
            <artifactId>bcp-log-springboot-starter</artifactId>
        </dependency>
        <!-- 单元测试-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>2.7.5</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.br.duga</groupId>
            <artifactId>duga-collector</artifactId>
        </dependency>

        <dependency>
            <groupId>com.xuxueli</groupId>
            <artifactId>xxl-job-core</artifactId>
            <version>2.2.0</version>
        </dependency>


        <dependency>
            <groupId>com.github.tobato</groupId>
            <artifactId>fastdfs-client</artifactId>
            <version>1.26.5</version>
            <exclusions>
                <exclusion>
                    <groupId>ch.qos.logback</groupId>
                    <artifactId>logback-classic</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-context</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-autoconfigure</artifactId>
                </exclusion>
            </exclusions>
        </dependency>


        <!--普罗米修斯 监控依赖-->
        <dependency>
            <groupId>com.br.victoria</groupId>
            <artifactId>common-monitor</artifactId>
            <version>1.0-SNAPSHOT</version>
            <exclusions>
                <exclusion>
                    <groupId>com.br.victoria</groupId>
                    <artifactId>common-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.netflix.hystrix</groupId>
                    <artifactId>hystrix-core</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-aop</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- 日志采集告警组件依赖 -->
        <dependency>
            <groupId>com.br.duga</groupId>
            <artifactId>duga-collector</artifactId>
        </dependency>
    </dependencies>

2.log4j version:

3.Log4j configuration

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="info" monitorInterval="30" packages="com.br.apollo.loan.util.Log4jEncodeLayout">

    <Properties>
        <Property name="profile">${bundle:bootstrap:spring.profiles.active}</Property>
        <Property name="busPattern">%d{yyyy-MM-dd HH:mm:ss.SSS}| [%22t] %-5level [%X{trace}] [%X{TRACE_URI}] [%c{1.}#{%M:%L}] - %msg%xEx%n
        </Property>

        <!--大禹日志中心-->
        <property name="LOG_CENTER" value="%d{yyyy-MM-dd HH:mm:ss.SSS}|%class|%M|%X{trace}|%X{BCP_BAGGAGE_UID}|%X{BCP_BAGGAGE_FLOW}|%d{yyyy-MM-dd HH:mm:ss.SSS} %level - %logger %msg%n"/>
    </Properties>

    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
            <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY"/>
            <Log4jEncodeLayout pattern="${busPattern}" charset="UTF-8"/>
        </Console>

        <!-- info级别的 -->
        <RollingFile name="apollo-loan-info" fileName="logs/apollo-loan-info.log"
                     filePattern="logs/apollo-loan-info.log.%d{MM-dd-yyyy}">
            <ThresholdFilter level="info" onMatch="ACCEPT"
                             onMismatch="DENY"/>
            <Log4jEncodeLayout pattern="${busPattern}" charset="UTF-8"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
            <DefaultRolloverStrategy>
                <Delete basePath="logs">
                    <IfFileName glob="apollo-loan-info.log.*" />
                    <IfLastModified age="100d" />
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>

        <!-- error级别的 -->
        <RollingFile name="apollo-loan-error" fileName="logs/apollo-loan-error.log"
                     filePattern="logs/apollo-loan-error.log.%d{MM-dd-yyyy}">
            <ThresholdFilter level="error" onMatch="ACCEPT"
                             onMismatch="DENY"/>
            <Log4jEncodeLayout pattern="${busPattern}" charset="UTF-8"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
            <DefaultRolloverStrategy>
                <Delete basePath="logs">
                    <IfFileName glob="apollo-loan-error.log.*" />
                    <IfLastModified age="100d" />
                </Delete>
            </DefaultRolloverStrategy>
        </RollingFile>


        <RollingFile name="batis-update-info" fileName="logs/batis-update-info.log"
                     filePattern="logs/batis-update-info.log.%d{MM-dd-yyyy}">
            <ThresholdFilter level="info" onMatch="ACCEPT"
                             onMismatch="DENY"/>
            <PatternLayout pattern="${busPattern}"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
        </RollingFile>

        <RollingFile name="batis-update-warn" fileName="logs/batis-update-warn.log"
                     filePattern="logs/batis-update-warn.log.%d{MM-dd-yyyy}">
            <ThresholdFilter level="warn" onMatch="ACCEPT"
                             onMismatch="DENY" />
            <PatternLayout pattern="${busPattern}"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
        </RollingFile>

        <RollingFile name="batis-update-error" fileName="logs/batis-update-error.log"
                     filePattern="logs/batis-update-error.log.%d{MM-dd-yyyy}">
            <ThresholdFilter level="error" onMatch="ACCEPT"
                             onMismatch="DENY"/>
            <PatternLayout pattern="${busPattern}"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
        </RollingFile>

        <!-- 日志中心格式 -->
        <RollingFile name="LOG_CENTER" fileName="logs/flume_source.log"
                     filePattern="logs/$${date:yyyy-MM-dd}/flume_source.log.%d{yyyy-MM-dd}">
            <ThresholdFilter level="info" onMatch="ACCEPT"
                             onMismatch="DENY"/>
            <Log4jEncodeLayout pattern="${LOG_CENTER}" charset="UTF-8"/>
            <Policies>
                <TimeBasedTriggeringPolicy modulate="false" interval="1"/>
            </Policies>
        </RollingFile>

    </appenders>

    <loggers>

        <AsyncRoot level="INFO">
            <appender-ref ref="Console"/>
        </AsyncRoot>
        
        <AsyncLogger name="com.br" additivity="false" includeLocation="true">
            <appender-ref ref="apollo-loan-info"/>
            <appender-ref ref="apollo-loan-error"/>
            <appender-ref ref="LOG_CENTER"/>
        </AsyncLogger>

        <AsyncLogger name="com.br.batis.update" additivity="false">
            <appender-ref ref="batis-update-info"/>
            <appender-ref ref="batis-update-warn"/>
            <appender-ref ref="batis-update-error"/>
            <appender-ref ref="LOG_CENTER"/>
        </AsyncLogger>

    </loggers>
</configuration>

4.Disruptor version: 3.3.4
5.OS version:

NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

6.JDK distribution & version

java version "1.8.0_221"
Java(TM) SE Runtime Environment (build 1.8.0_221-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.221-b11, mixed mode)

vy · 2025-03-03T10:18:13Z

vy
Mar 3, 2025
Collaborator

@xurengithub, would you mind providing the following information, please?

pom.xml
Log4j version
Log4j configuration
Disruptor version
OS version
JDK distribution & version

3 replies

xurengithub Mar 4, 2025
Author

No problem—submitted what you needed. Grateful for your help

ppkarwasz Mar 5, 2025
Collaborator

@xurengithub,

The versions of Log4j and Disruptor you are using are quite old: Log4j 2.17.1 is 3 years old, Disruptor 3.3.4 is 9 years old. Did you try upgrading to the latest version (2.24.3 for Log4j and 4.0.0 for Disruptor)?

Tip: Since you use spring-boot-start-parent as ancestor of your POM file, you can upgrade Log4j by overriding the property used by spring-boot-dependencies:

<properties>
  <log4j2.version>2.24.3</log4j2.version>
</properties>

Therefore consider renaming your log4j.version property to log4j2.version.

xurengithub Mar 7, 2025
Author

Ok, thank you, I will try, but I am still curious, because only one service has this problem, and it has not happened before, I do not know what conditions are triggered

tcmot · 2025-03-04T11:10:56Z

tcmot
Mar 4, 2025

类似问题都是由于消费端阻塞导致的，应该仔细分析消费端为什么会阻塞。只用来写文件吗？磁盘IO有问题吗？有网络传输吗？网络IO有问题吗？

2 replies

xurengithub Mar 5, 2025
Author

我刚开始也觉得是因为消费问题，但是我看BatchEventProcessor的消费者线程一直处于park状态，我以为一直在无限循环尝试从环形队列中取数据，但是我发现awaitNanos上面的checkAlert方法一直没有执行，那不就是说明现在一直在awaitNanos这个方法上阻塞了嘛，但是默认是10ms也不应该无限park

xurengithub Mar 5, 2025
Author

这个是通过arthas去监听checkAlert方法调用

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Why is the consumption thread for Log4j2 asynchronous logs still in TIMED_WAIT when the RingBuffer is full? #3514

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Why is the consumption thread for Log4j2 asynchronous logs still in TIMED_WAIT when the RingBuffer is full? #3514

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xurengithub Mar 3, 2025

Replies: 2 comments · 5 replies

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vy Mar 3, 2025 Collaborator

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xurengithub Mar 4, 2025 Author

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ppkarwasz Mar 5, 2025 Collaborator

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xurengithub Mar 7, 2025 Author

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tcmot Mar 4, 2025

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xurengithub Mar 5, 2025 Author

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xurengithub Mar 5, 2025 Author

xurengithub
Mar 3, 2025

Replies: 2 comments 5 replies

vy
Mar 3, 2025
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xurengithub Mar 4, 2025
Author

ppkarwasz Mar 5, 2025
Collaborator

xurengithub Mar 7, 2025
Author

tcmot
Mar 4, 2025

xurengithub Mar 5, 2025
Author

xurengithub Mar 5, 2025
Author