Question

我正在尝试使用以下命令在hdfs中创建输入文件：

hduser@salma-SATELLITE-C855-1EQ:/usr/local/hadoop$ ./bin/hadoop fs -mkdir /in

但它给我一个连接失败的错误：

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.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]
16/10/09 02:12:04 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
mkdir: Call From salma-SATELLITE-C855-1EQ/127.0.1.1 to localhost:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused

我已经使用start-all.sh运行hadoop服务：

hduser@salma-SATELLITE-C855-1EQ:/usr/local/hadoop$ jps
20437 Jps
20030 SecondaryNameNode
19839 DataNode

所以任何人都可以帮助解决这个问题

Answer 1

您缺少namenode（主要），这是您尝试连接的代码。检查日志以了解它未启动的原因。

在HDFS中创建输入文件

1 个答案: