Mykola Holovach created LOG4J2-3057:
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Summary: TcpSocketAppender over load CPU
Key: LOG4J2-3057
URL: https://issues.apache.org/jira/browse/LOG4J2-3057
Project: Log4j 2
Issue Type: Bug
Components: Appenders
Reporter: Mykola Holovach
My server log4j2 xml configuration below
{code:java}
<Configuration xmlns="http://logging.apache.org/log4j/2.0/config";> <Appenders>
<RollingRandomAccessFile name="ERROR_FILE" bufferSize="1024"
bufferedIO="true" append="true"
fileName="${LOGS_HOME}/logfinal-error-${HOST_NAME_SHORT}.log"
filePattern="${LOGS_HOME}/logfinal-error-${HOST_NAME_SHORT}.log.%d{yyyy-MM-dd}">
<ThresholdFilter level="warn" />
<PatternLayout pattern="%d{DEFAULT} %-5p %t %c %X{application}
%x - %m%n" />
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
</Policies>
</RollingRandomAccessFile> <RollingRandomAccessFile
name="DEBUG_FILE" bufferSize="32768" bufferedIO="true" append="true"
fileName="${LOGS_HOME}/logfinal-debug-${HOST_NAME_SHORT}.log"
filePattern="${LOGS_HOME}/logfinal-debug-${HOST_NAME_SHORT}.log.%d{yyyy-MM-dd}">
<ThresholdFilter level="debug" />
<PatternLayout pattern="%d{DEFAULT} %-5p %t %c ${application}
%x - %m%n" />
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
</Policies>
</RollingRandomAccessFile> <Async name="ASYNC" bufferSize="64">
<AppenderRef ref="ERROR_FILE" />
<AppenderRef ref="DEBUG_FILE" />
</Async>
</Appenders> <Loggers>
<Logger name="ua" level="debug" />
<Logger name="ua.cetelem.DossierAnalyser" level="info" />
<Logger name="ua.cetelem.dbaccess.DbAccess" level="info" />
<Logger name="com.usb" level="debug" />
<Logger name="jacorb" level="info"/>
<Logger name="org.owasp" level="trace"/>
<Root level="info">
<AppenderRef ref="ASYNC"/>
</Root>
</Loggers></Configuration>
{code}
My client side log4j2 xml configuration below
{code:java}
<Configuration xmlns="http://logging.apache.org/log4j/2.0/config";>
<Appenders>
<Socket name="logfinal" host="localhost" port="1101">
<JSONLayout/>
</Socket> <RollingFile name="ERROR_FILE"
fileName="build/${sys:LOG4J_APP_NAME:-}-error-${HOST_NAME_SHORT}.log"
filePattern="build/${sys:LOG4J_APP_NAME:-}-error-${HOST_NAME_SHORT}.log.%d{yyyy-MM-dd}">
<ThresholdFilter level="warn" />
<PatternLayout
pattern="%d{DEFAULT} %-5p %t %c %x - %m%n" />
<Policies>
<TimeBasedTriggeringPolicy interval="1" />
</Policies>
</RollingFile> <RollingFile name="DEBUG_FILE"
fileName="build/${sys:LOG4J_APP_NAME:-}-debug-${env:NAME_SHORT}.log"
filePattern="build/${sys:LOG4J_APP_NAME:-}-debug-${env:NAME_SHORT}.log.%d{yyyy-MM-dd}">
<ThresholdFilter level="debug" />
<PatternLayout
pattern="%d{DEFAULT} %-5p %t %c %x - %m%n" />
<Policies>
<TimeBasedTriggeringPolicy interval="1" />
</Policies>
</RollingFile>
<Async name="ASYNC" bufferSize="64">
<AppenderRef ref="ERROR_FILE" />
<AppenderRef ref="DEBUG_FILE" />
<AppenderRef ref="logfinal" />
</Async>
</Appenders> <Loggers>
<Logger name="org.hibernate.tool.hbm2ddl" level="DEBUG" />
<Logger name="org.hibernate.SQL" level="INFO" />
<Logger name="ua.cetelem" level="debug" />
<Root level="info">
<Property name="application">app_name</Property>
<AppenderRef ref="ASYNC" />
</Root>
</Loggers>
</Configuration>
{code}
I need a help to resolve an issue with high load CPU on the logger serve, what
could be the problem and which could be options to resolve this problem?
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