由于log4j配置，打开的文件过多 [英] Too many open files due to log4j config
问题描述
我们正在使用log4j 2.5.我的问题是关于 ConferenceLog 的，因此请忽略下面的其他配置.
We are using log4j 2.5. My question is in regards to the ConferenceLog so please disregard other configurations below.
log4j2.xml文件:
log4j2.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration monitorInterval="180">
<Properties>
<!-- change the path to conference logs below to fit your system -->
<Property name="LOG_DIR">C:\CodeRepos\logs</Property>
<Property name="PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level
%logger{36} - %msg%n</Property>
</Properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="${PATTERN}" />
</Console>
<Routing name="DailyLog">
<Routes pattern="${ctx:logFileName}">
<Route>
<RollingFile name="Rolling-${ctx:logFileName}"
fileName="${LOG_DIR}/symproxy.log"
filePattern="${LOG_DIR}/symproxy-%i.log">
<PatternLayout pattern="${PATTERN}" />
<SizeBasedTriggeringPolicy size="20971520" />
<DefaultRolloverStrategy max="100" />
</RollingFile>
</Route>
</Routes>
</Routing>
<Routing name="ConferenceLog">
<Routes pattern="${ctx:logFileName}">
<Route>
<RollingFile name="Rolling-${ctx:logFileName}"
fileName="${LOG_DIR}/conferences/${ctx:logFileName}.log"
filePattern="${LOG_DIR}/conferences/${ctx:logFileName}.%i.log.gz">
<PatternLayout pattern="${PATTERN}" />
<SizeBasedTriggeringPolicy size="20971520" />
</RollingFile>
</Route>
</Routes>
</Routing>
<Routing name="DeviceLog">
<Routes pattern="${ctx:logFileName}">
<Route>
<RollingFile name="Rolling-${ctx:logFileName}"
fileName="${LOG_DIR}/devices/${ctx:logFileName}.log"
filePattern="${LOG_DIR}/devices/${ctx:logFileName}.%i.log.gz">
<PatternLayout pattern="${PATTERN}" />
<SizeBasedTriggeringPolicy size="5kb" />
<DefaultRolloverStrategy max="3" />
</RollingFile>
</Route>
</Routes>
</Routing>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Console" />
<AppenderRef ref="DailyLog" />
</Root>
<Logger name="conference.logger" level="debug" additivity="false">
<AppenderRef ref="ConferenceLog" />
<AppenderRef ref="Console" />
</Logger>
<Logger name="device.logger" level="info" additivity="false">
</Logger>
</Loggers>
</Configuration>
我有一个小包装，在其中实例化了这个会议记录器
I have a small wrapper and in there i instantiate this conference logger
private final Log conferenceLogger = LogFactory.getLog("conference.logger");
然后像这样使用
private void logger(Long meetingId, Log log, String className, Level level, String message, Throwable error) {
ThreadContext.put(LOG_FILE_NAME, String.valueOf(meetingId));
logger(conferenceLogger, level, className + "." + message, error);
ThreadContext.remove(LOG_FILE_NAME);
}
private static void logger(Log log, Level level, String message, Throwable error) {
if (level == Level.DEBUG) {
log.debug(message);
} else if (level == Level.ERROR) {
if (error == null) {
log.error(message);
} else {
log.error(message, error);
}
} else if (level == Level.FATAL) {
log.fatal(message);
} else if (level == Level.TRACE) {
log.trace(message);
} else if (level == Level.INFO) {
log.info(message);
} else if (level == Level.WARN) {
log.warn(message);
}
}
这将创建一堆名为会议ID"的文件.但是，我的问题是这些文件在打开后再也不会关闭.
This creates a bunch of files named with the "meeting id". My problem however is that these files are never closed after they are opened.
我阅读了类似的SO帖子，但是我没有没有引用我的FileAppender来调用close，也没有Logger对象，因此我不确定如何实现其修复.如何以编程方式触发这些文件的关闭?
因此，我们的一台服务器出现打开文件过多"错误.
I read over this similar SO post however I don't have references to my FileAppender to call close on, nor do I have a Logger object, so I'm not sure how to implement its fix. How do i trigger the closing of these files programmatically?
One of our servers is getting the "too many open files" error due to this.
在阅读了文档之后，看起来IdlePurgePolicy应该是我所需要的，但是我看不到它对打开文件的数量有任何影响. 如果我的log4j2文件有几个不同的地方，我尝试了下面的行，但是正如我提到的那样，它没有任何作用
After reading through the documentation more it seems like IdlePurgePolicy should be what I need but I do not see it having any effect on the number of open files. I tried the below line if a few difference places of my log4j2 file but as I mentioned, it had no effect
<IdlePurgePolicy timeToLive="1" timeUnit="minutes"/>
推荐答案
IdlePurgePolicy最终解决了此问题
IdlePurgePolicy did end up fixing this
<Routing name="ConferenceLog">
<Routes pattern="${ctx:logFileName}">
<Route>
<RollingFile name="Rolling-${ctx:logFileName}"
fileName="${LOG_DIR}/conferences/${ctx:logFileName}.log"
filePattern="${LOG_DIR}/conferences/${ctx:logFileName}.%i.log.gz">
<PatternLayout pattern="${PATTERN}" />
<SizeBasedTriggeringPolicy size="20971520" />
</RollingFile>
</Route>
</Routes>
<IdlePurgePolicy timeToLive="30" timeUnit="seconds"/>
</Routing>
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