从Docker容器将Log4j2日志写入远程服务器会出错

时间：2019-06-21 05:39:57

标签： java docker logging log4j2

我正在使用Log4j2的Socket Appender将日志写入远程服务器。当我从Spring Boot应用程序编写时，它运行良好。在使用docker容器化此应用程序并作为docker容器运行后，它出现以下错误。从Docker容器写入远程服务器是正确的做法吗？

错误 

NGINX

在客户端应用中

  

log4j2.xml（log4j2配置）

kabilesh@kabilesh-Latitude-E6540:~/IdeaProjects/SpringResearch$ docker run -p 8080:8080 springappnew
2019-06-21 10:39:50,796 main ERROR TcpSocketManager (TCP:127.0.0.1:8000) java.net.ConnectException: Connection refused (Connection refused) java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.logging.log4j.core.net.TcpSocketManager$TcpSocketManagerFactory.createSocket(TcpSocketManager.java:423)
        at org.apache.logging.log4j.core.net.TcpSocketManager$TcpSocketManagerFactory.createManager(TcpSocketManager.java:404)
        at org.apache.logging.log4j.core.net.TcpSocketManager$TcpSocketManagerFactory.createManager(TcpSocketManager.java:387)
        at org.apache.logging.log4j.core.appender.AbstractManager.getManager(AbstractManager.java:112)
        at org.apache.logging.log4j.core.appender.OutputStreamManager.getManager(OutputStreamManager.java:114)
        at org.apache.logging.log4j.core.net.TcpSocketManager.getSocketManager(TcpSocketManager.java:201)
        at org.apache.logging.log4j.core.appender.SocketAppender.createSocketManager(SocketAppender.java:430)
        at org.apache.logging.log4j.core.appender.SocketAppender$Builder.build(SocketAppender.java:215)
        at org.apache.logging.log4j.core.appender.SocketAppender$Builder.build(SocketAppender.java:190)
        at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
        at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)
        at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
        at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:617)
        at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:634)
        at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:229)
        at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:152)
        at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:45)
        at org.apache.logging.log4j.LogManager.getContext(LogManager.java:194)
        at org.apache.commons.logging.LogFactory$Log4jLog.<clinit>(LogFactory.java:199)
        at org.apache.commons.logging.LogFactory$Log4jDelegate.createLog(LogFactory.java:166)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:109)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:99)
        at org.springframework.boot.SpringApplication.<clinit>(SpringApplication.java:189)
        at com.springResearch.SpringRoot.main(SpringRoot.java:9)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)

2019-06-21 10:39:51,396 Log4j2-TF-1-AsyncLoggerConfig-1 ERROR Unable to write to stream TCP:127.0.0.1:8000 for appender socket: org.apache.logging.log4j.core.appender.AppenderLoggingException: Error writing to TCP:127.0.0.1:8000 socket not available
2019-06-21 10:39:51,398 Log4j2-TF-1-AsyncLoggerConfig-1 ERROR An exception occurred processing Appender socket org.apache.logging.log4j.core.appender.AppenderLoggingException: Error writing to TCP:127.0.0.1:8000 socket not available
        at org.apache.logging.log4j.core.net.TcpSocketManager.write(TcpSocketManager.java:213)
        at org.apache.logging.log4j.core.appender.OutputStreamManager.write(OutputStreamManager.java:201)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.writeByteArrayToManager(AbstractOutputStreamAppender.java:186)
        at org.apache.logging.log4j.core.appender.SocketAppender.directEncodeEvent(SocketAppender.java:446)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
        at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfig.asyncCallAppenders(AsyncLoggerConfig.java:115)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigDisruptor.java:112)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigDisruptor.java:98)
        at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:129)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)


  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.6.RELEASE)

2019-06-21 10:39:51,616 Log4j2-TF-1-AsyncLoggerConfig-1 ERROR Unable to write to stream TCP:127.0.0.1:8000 for appender socket: org.apache.logging.log4j.core.appender.AppenderLoggingException: Error writing to TCP:127.0.0.1:8000 socket not available
2019-06-21 10:39:51,617 Log4j2-TF-1-AsyncLoggerConfig-1 ERROR An exception occurred processing Appender socket org.apache.logging.log4j.core.appender.AppenderLoggingException: Error writing to TCP:127.0.0.1:8000 socket not available
        at org.apache.logging.log4j.core.net.TcpSocketManager.write(TcpSocketManager.java:213)
        at org.apache.logging.log4j.core.appender.OutputStreamManager.write(OutputStreamManager.java:201)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.writeByteArrayToManager(AbstractOutputStreamAppender.java:186)
        at org.apache.logging.log4j.core.appender.SocketAppender.directEncodeEvent(SocketAppender.java:446)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:170)
        at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:161)
        at org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
        at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
        at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:448)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfig.asyncCallAppenders(AsyncLoggerConfig.java:115)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigDisruptor.java:112)
        at org.apache.logging.log4j.core.async.AsyncLoggerConfigDisruptor$Log4jEventWrapperHandler.onEvent(AsyncLoggerConfigDisruptor.java:98)
        at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:129)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

2019-06-21 10:39:53.884  INFO 1 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2019-06-21 10:39:53.886  INFO 1 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.34
2019-06-21 10:39:53.905  INFO 1 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [/usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib]
2019-06-21 10:39:54.013  INFO 1 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext

Dockerfile 

<Configuration status="warn" name="SpringResearch" packages="com.springResearch">
    <Appenders>
        <Socket name="socket" host="127.0.0.1" port="8000">
            <SerializedLayout />
        </Socket>
    </Appenders>

    <Loggers>
        <AsyncRoot level="info">
            <AppenderRef ref="socket"/>
        </AsyncRoot>
    </Loggers>
</Configuration>

我将docker容器运行为 

FROM java:8
EXPOSE 8080
ADD /target/SpringResearch-1.0-SNAPSHOT.jar SpringResearch-1.0-SNAPSHOT.jar
ENTRYPOINT ["java", "-jar", "SpringResearch-1.0-SNAPSHOT.jar"]

我使用这个-https://github.com/piruin/log4j2-socket-server作为监听套接字追加程序的应用程序。这正在localhost上监听：端口8000

在日志服务器应用中

log4j2.xml 

docker run -p 8080:8080 springappnew

2 个答案:

答案 0 :(得分：2)

通常，您不会在与应用程序相同的Docker容器中运行服务器。因此我认为127.0.0.1是不正确的，因为这是本地docker容器。您必须输入正确的名称或ip，可能是docker主机的名称。

答案 1 :(得分：2)

如@jokster所述，应将localhost（127.0.0.1）替换为容器内已知主机的IP。您可以在主机上使用以下命令来获取它：

 ip r s 0/0 | awk '{print $3}

然后将IP作为环境变量传递到容器，并在log4j.xml配置文件中使用它。请参阅log4j docs

中的环境查找

从Docker v18.03 +开始，似乎可以使用host.docker.internal主机名

更多信息：

Get Your Docker Host's IP Address from in a Container

How to get the IP address of the docker host from inside a docker container

Connect to a Database Running on Your Docker Host

希望有帮助。

相关问题
最新问题