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

xurengithub Mar 3, 2025

Replies: 2 comments · 5 replies

vy Mar 3, 2025 Collaborator

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

xurengithub
Mar 3, 2025

Replies: 2 comments 5 replies

vy
Mar 3, 2025
Collaborator

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