Запись журналов Log4j2 на удаленный сервер из контейнера Docker дает ошибку - PullRequest
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Запись журналов Log4j2 на удаленный сервер из контейнера Docker дает ошибку

1 голос
/ 21 июня 2019

Я использую Socket Appender из Log4j2 для записи журналов на удаленный сервер. Это работало нормально, когда я писал из приложения с весенней загрузкой. После того, как я запустил это приложение в докер и запустил его как контейнер, оно выдает следующие ошибки. Как правильно было писать на удаленный сервер из док-контейнера?

Ошибка 

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

В клиентском приложении

log4j2.xml (конфигурации log4j2) 

<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>

Dockerfile 

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"]

Я запускаю контейнер докера как 

docker run -p 8080:8080 springappnew

Я использую это - https://github.com/piruin/log4j2-socket-server как приложение, которое слушает апплет сокета. Это прослушивание на локальном хосте: порт 8000

В приложении сервера журнала

log4j2.xml 

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="SocketServerLog" monitorInterval="30">
  <Appenders>
    <RollingRandomAccessFile name="RollingRandomAccessFile" fileName="logs/info.log"
                 filePattern="logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd-HH}-%i.log.gz">
      <PatternLayout>
        <Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
      </PatternLayout>
      <Policies>
        <TimeBasedTriggeringPolicy interval="6" modulate="true"/>
        <SizeBasedTriggeringPolicy size="25 MB"/>
      </Policies>
    </RollingRandomAccessFile>
  </Appenders>
  <Loggers>
    <Root level="info">
      <AppenderRef ref="RollingRandomAccessFile"/>
    </Root>
  </Loggers>
</Configuration>

Ответы [ 2 ]

2 голосов
/ 21 июня 2019

Как упомянул @jokster, localhost (127.0.0.1) следует заменить IP-адресом хоста, известным внутри контейнера. Вы можете использовать следующее на хосте, чтобы получить его: 

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

Затем передайте IP-адрес в качестве переменной среды в контейнер и используйте его в файле конфигурации log4j.xml. См. Поиск окружения в log4j документах

Начиная с Docker v18.03 +, кажется, можно использовать host.docker.internal hostname

Подробнее:

Получить IP-адрес хоста Docker из контейнера

Как получить IP-адрес хоста докера из контейнера докера

Подключение к базе данных, работающей на хосте Docker

Надеюсь, это поможет.

2 голосов
/ 21 июня 2019

Обычно сервер не запускается в том же контейнере докера, что и приложение. Поэтому я предполагаю, что 127.0.0.1 не является правильным, поскольку это локальный контейнер Docker. Вы должны указать правильное имя или ip, возможно, имя хоста докера.

...