SLF4J: Class path contains multiple SLF4J bindings. hbase

这个错误信息表示在HBase的类路径中存在多个SLF4J（Simple Logging Facade for Java）的绑定。这通常会导致日志记录的冲突和问题。

解决这个问题的方法是将类路径中的多个SLF4J绑定排除，只保留一个。你可以按照以下步骤进行操作：

1. 确保你的HBase安装目录中只有一个SLF4J的实现库，例如`slf4j-log4j12.jar`。
2. 检查HBase的类路径设置，确保只包含一个SLF4J库。你可以通过编辑HBase的启动脚本（例如`hbase-env.sh`）或在启动HBase时设置`CLASSPATH`环境变量来修改类路径。
3. 如果你使用的是Maven项目，可以在`pom.xml`文件中检查依赖项，确保只有一个SLF4J库被引入。如果有多个SLF4J相关的依赖项，你可以使用`<exclusions>`元素来排除其中的一些依赖项。

完成上述步骤后，重新启动HBase并查看日志，应该不再出现"Class path contains multiple SLF4J bindings"的错误信息。

相关问题

Warning: No configuration directory set! Use --conf <dir> to override. Info: Including Hadoop libraries found via (/opt/hadoop-3.1.2/bin/hadoop) for HDFS access Info: Including HBASE libraries found via (/opt/hbase-2.2.6/bin/hbase) for HBASE access 错误: 找不到或无法加载主类 org.apache.flume.tools.GetJavaProperty Info: Including Hive libraries found via (/opt/hive-3.1.2) for Hive access + exec /opt/jdk1.8.0_351/bin/java -Xmx20m -cp '/opt/flume-1.9.0/lib/*:/opt/hadoop-3.1.2/etc/hadoop:/opt/hadoop-3.1.2/share/hadoop/common/lib/*:/opt/hadoop-3.1.2/share/hadoop/common/*:/opt/hadoop-3.1.2/share/hadoop/hdfs:/opt/hadoop-3.1.2/share/hadoop/hdfs/lib/*:/opt/hadoop-3.1.2/share/hadoop/hdfs/*:/opt/hadoop-3.1.2/share/hadoop/mapreduce/lib/*:/opt/hadoop-3.1.2/share/hadoop/mapreduce/*:/opt/hadoop-3.1.2/share/hadoop/yarn:/opt/hadoop-3.1.2/share/hadoop/yarn/lib/*:/opt/hadoop-3.1.2/share/hadoop/yarn/*:/opt/hbase-2.2.6/conf:/opt/jdk1.8.0_351//lib/tools.jar:/opt/hbase-2.2.6:/opt/hbase-2.2.6/lib/shaded-clients/hbase-shaded-client-byo-hadoop-2.2.6.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/audience-annotations-0.5.0.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/commons-logging-1.2.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/findbugs-annotations-1.3.9-1.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/htrace-core4-4.2.0-incubating.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/log4j-1.2.17.jar:/opt/hbase-2.2.6/lib/client-facing-thirdparty/slf4j-api-1.7.25.jar:/opt/hadoop-3.1.2/etc/hadoop:/opt/hadoop-3.1.2/share/hadoop/common/lib/*:/opt/hadoop-3.1.2/share/hadoop/common/*:/opt/hadoop-3.1.2/share/hadoop/hdfs:/opt/hadoop-3.1.2/share/hadoop/hdfs/lib/*:/opt/hadoop-3.1.2/share/hadoop/hdfs/*:/opt/hadoop-3.1.2/share/hadoop/mapreduce/lib/*:/opt/hadoop-3.1.2/share/hadoop/mapreduce/*:/opt/hadoop-3.1.2/share/hadoop/yarn:/opt/hadoop-3.1.2/share/hadoop/yarn/lib/*:/opt/hadoop-3.1.2/share/hadoop/yarn/*:/opt/hadoop-3.1.2/etc/hadoop:/opt/hbase-2.2.6/conf:/opt/hive-3.1.2/lib/*' -Djava.library.path=:/opt/hadoop-3.1.2/lib/native org.apache.flume.node.Application --name a1 --conf/opt/flume-1.9.0/conf --conf-file/opt/flume-1.9.0/conf/dhfsspool.conf-Dflume.root.logger=DEBUG,consol SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/opt/flume-1.9.0/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/opt/hadoop-3.1.2/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/opt/hive-3.1.2/lib/log4j-slf4j-impl-2.10.0.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory] 2023-06-08 17:26:46,403 ERROR node.Application: A fatal error occurred while running. Exception follows. org.apache.commons.cli.UnrecognizedOptionException: Unrecognized option: --conf/opt/flume-1.9.0/conf at org.apache.commons.cli.Parser.processOption(Parser.java:363) at org.apache.commons.cli.Parser.parse(Parser.java:199) at org.apache.commons.cli.Parser.parse(Parser.java:85) at org.apache.flume.node.Application.main(Application.java:287)

这段文本是一个错误日志，它指出在运行某个程序时出现了错误。错误的具体信息是“Unrecognized option: --conf/opt/flume-1.9.0/conf”，说明程序无法识别选项“--conf/opt/flume-1.9.0/conf”。这个问题可能是由于程序在解析命令行参数时出现了错误导致的。

[atguigu@node11 hbase]$ bin/start-hbase.sh SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/opt/module/hadoop-3.1.3/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/usr/local/hbase/lib/client-facing-thirdparty/slf4j-log4j12-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory] running master, logging to /usr/local/hbase/bin/../logs/hbase-atguigu-master-node11.out SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/opt/module/hadoop-3.1.3/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/usr/local/hbase/lib/client-facing-thirdparty/slf4j-log4j12-1.7.30.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation

这是一个启动HBase的Shell脚本，在启动的过程中出现了SLF4J绑定的问题。具体的错误信息是Class path contains multiple SLF4J bindings，意思是类路径中包含了多个SLF4J绑定。在这个错误信息中，SLF4J发现了两个绑定，一个在/opt/module/hadoop-3.1.3/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar中，另一个在/usr/local/hbase/lib/client-facing-thirdparty/slf4j-log4j12-1.7.30.jar中。SLF4J提供了一个链接http://www.slf4j.org/codes.html#multiple_bindings来解释这个问题。最后，该错误信息指出实际的绑定类型是org.slf4j.impl.Log4jLoggerFactory。