java 如何让 GELFJ appender 在 log4j 中工作？
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How to get GELFJ appender work in log4j?
提问by Jochen
I need to get my Java application writing logging to a Graylog2 server. The application uses a log4j configuration. Several things I have tried to get the logging writing to the Graylog2 server, the things I got working was sending a test message directly to the server, as shown here(first example).
我需要让我的 Java 应用程序将日志记录到 Graylog2 服务器。该应用程序使用 log4j 配置。有几件事情我试图记录写入到该服务器Graylog2，我得到了工作直接发送测试信息到服务器，如图所示的东西在这里（第一个例子）。
Yet, when I write an appender and attach it to the root logger, I always get this error message the first time a log event is to be fired:
然而，当我编写一个 appender 并将其附加到根记录器时，我总是在第一次触发日志事件时收到此错误消息：
log4j:ERROR Could not send GELF message
log4j:ERROR 无法发送 GELF 消息
Nothing then happens on the Graylog2 server side.
Graylog2 服务器端没有任何反应。
The appender I try to get working:
我尝试开始工作的附加程序：
<appender name="graylog2" class="org.graylog2.log.GelfAppender">
<param name="graylogHost" value="127.0.0.1"/>
<param name="originHost" value="my.machine.example.com"/>
<param name="extractStacktrace" value="true"/>
<param name="addExtendedInformation" value="true"/>
<param name="facility" value="gelf-java"/>
<param name="Threshold" value="INFO"/>
<param name="additionalFields" value="{'environment': 'DEV', 'application': 'MyAPP'}"/>
</appender>
Does anyone have an idea how to get this running?
Any help is highly appreciated!
有谁知道如何让它运行？
任何帮助表示高度赞赏！
回答by adramazany
This work work me:
这项工作对我有用：
add this dependency in your maven pom file
在您的 maven pom 文件中添加此依赖项
<dependency>
<groupId>org.graylog2</groupId>
<artifactId>gelfj</artifactId>
<version>1.1.13</version>
</dependency>
and these lines in your log4j.properties
以及 log4j.properties 中的这些行
# Define the graylog2 destination
log4j.appender.graylog2=org.graylog2.log.GelfAppender
log4j.appender.graylog2.graylogHost=192.168.243.23
log4j.appender.graylog2.port=12201
log4j.appender.graylog2.originHost=loggenerator-server-ip
log4j.appender.graylog2.layout=org.apache.log4j.PatternLayout
log4j.appender.graylog2.additionalFields={'environment': 'DEV', 'application': 'MyAPP'}
log4j.appender.graylog2.extractStacktrace=true
log4j.appender.graylog2.addExtendedInformation=true
log4j.appender.graylog2.facility=gelfappender-test
回答by Girish kumar
Through java code I appended the GelfAppenderand even I was getting the same error as:
通过Java代码，我附加了GelfAppender，甚至我也遇到了与以下相同的错误：
log4j:ERROR Could not send GELF message
The reason I found for the error is that I was not calling the
我发现错误的原因是我没有调用
activateOptions();
This function will set the gelfSender which we had intialized using
此函数将设置我们已使用初始化的 gelfSender
private GelfSender gelfSender;
Once the gelfSenderis set to sumthing the message can be sent to GELF.
一旦gelfSender设置为 sumthing，消息就可以发送到GELF。
here is the code how I used to get the GelfAppender
这是我用来获取的代码 GelfAppender
GelfAppender appender = new GelfAppender();
appender.setName("GrayLogAppender");
appender.setGraylogHost("localhost");
appender.setGraylogPort(12201);
appender.setFacility("gelf-java");
appender.setOriginHost("localhost");
appender.setLayout(lyt);
appender.setExtractStacktrace(true);
appender.setAddExtendedInformation(true);
appender.setAdditionalFields("{'environment': 'DEV', 'application':'MyAPP'}");
appender.activateOptions();
回答by Alex Milman
Look in catalina.out(usually located under tomcat/logs) for error messages related to Gelf
查看catalina.out（通常位于 下tomcat/logs）以获取与 Gelf 相关的错误消息
