Java Elasticsearch“StatusLogger Log4j2 找不到日志记录实现。请将 log4j-core 添加到类路径。”
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Elasticsearch "StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath."
提问by digsy89
I upgraded elasticsearch java client from 2.3 to 5.1.
我将 elasticsearch java 客户端从 2.3 升级到 5.1。
And this error log continues to appear.
并且这个错误日志继续出现。
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...
I'm using log4j2
我正在使用 log4j2
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.7</version>
</dependency>
回答by digsy89
It seems to be a version problem. It works fine with 2.6.2.
好像是版本问题。它适用于 2.6.2。
回答by Abdeslam Elazzam
you need to add properties file as shown here:
你需要添加的属性文件，如在这里：
appender.console.type = Console appender.console.name = console appender.console.layout.type = PatternLayout rootLogger.level = info rootLogger.appenderRef.console.ref = console
appender.console.type = Console appender.console.name = console appender.console.layout.type = PatternLayout rootLogger.level = info rootLogger.appenderRef.console.ref = console
回答by DariusNica
very late answer, however :) if you don't want to upgrade ES, just add following dependency to pom :
但是，很晚的答案:)如果您不想升级 ES，只需将以下依赖项添加到 pom ：
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-to-slf4j</artifactId>
<version>2.8.2</version>
</dependency>
that should fix it
那应该解决它
回答by stanly
Using newest log4j2helped me.
使用最新的log4j2帮助了我。
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.1</version>
</dependency>
回答by nantitv
For me following solution worked. Ref- https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/_log4j_2_logger.html( original discussion thread https://github.com/elastic/elasticsearch/pull/25136)
对我来说，以下解决方案有效。参考- https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/_log4j_2_logger.html（原始讨论线程https://github.com/elastic/elasticsearch/pull/25136）
You need to include Log4j 2 dependencies:
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.11.1</version>
</dependency>
And also provide a Log4j 2 configuration file in your classpath. For example, you can add in your src/main/resources project dir a log4j2.properties file like ( I did this):
appender.console.type = Console
appender.console.name = console
appender.console.layout.type = PatternLayout
rootLogger.level = info
rootLogger.appenderRef.console.ref = console
