log4J2线程死锁

Question

""ajp-bio-8010"-exec-5" daemon prio=6 tid=0x50d57c00 nid=0x355c waiting for monitor entry [0x53c6e000]
   java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.logging.log4j.core.layout.TextEncoderHelper.copyDataToDestination(TextEncoderHelper.java:62)
- waiting to lock <0x1ad983f8> (a org.apache.logging.log4j.core.appender.OutputStreamManager)
at org.apache.logging.log4j.core.layout.TextEncoderHelper.encodeTextWithCopy(TextEncoderHelper.java:57)
at org.apache.logging.log4j.core.layout.StringBuilderEncoder.encodeWithThreadLocals(StringBuilderEncoder.java:70)
at org.apache.logging.log4j.core.layout.StringBuilderEncoder.encode(StringBuilderEncoder.java:63)
at org.apache.logging.log4j.core.layout.StringBuilderEncoder.encode(StringBuilderEncoder.java:32)
at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:219)
at org.apache.logging.log4j.core.layout.PatternLayout.encode(PatternLayout.java:57)
at org.apache.logging.log4j.core.appender.Abstra

Answer 1

<?xml version="1.0" encoding="UTF-8"?>  
<configuration status="error">
<properties>
        <property name="LOG_HOME">C://lht/manager</property>
    </properties>
    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="[%d{HH:mm:ss.SSS}] [%-5p] %l - %m%n"/>
        </Console>
        <RollingFile name="RollingFileError" fileName="${LOG_HOME}/error.log" filePattern="${LOG_HOME}/$${date:yyyy-MM}/error-%d{MM-dd-yyyy}-%i.log">
         <ThresholdFilter level="ERROR" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="[%d{yyyy-MM-dd 'at' HH:mm:ss z}] [%-5p] %l - %m%n"/>
 <SizeBasedTriggeringPolicy size="5MB"/>
        </RollingFile>
    

Answer 2

<RollingFile name="RollingFileWARN" fileName="${LOG_HOME}/debug.log" filePattern="${LOG_HOME}/$${date:yyyy-MM}/debug-%d{MM-dd-yyyy}-%i.log">
         <ThresholdFilter level="WARN" onMatch="DENY" onMismatch="NEUTRAL"/>
            <PatternLayout pattern="[%d{yyyy-MM-dd 'at' HH:mm:ss z}] [%-5p] %l - %m%n"/>
            <SizeBasedTriggeringPolicy size="10MB"/>
        </RollingFile>
    </appenders>
<loggers>
        <logger name="org.springframework" level="INFO"></logger>
        <logger name="org.mybatis" level="INFO"></logger>
        <root level="debug">
            <appender-ref ref="Console"/>
            <appender-ref ref="RollingFileWARN"/>
            <appender-ref ref="RollingFileError"/>
        </root>
    </loggers>
</configuration>

Answer 3

先参考一下
https://stackoverflow.com/questions/42231440/log4j2-in-async-mode-still-blocks-on-java-util-concurrent-lock-under-heavy-load