22. hadoop fs -chgrp [-R] GROUP PATH… 计数文件个数及所占空间的详情,输出表格的列的含义依次为:DIR_COUNT,FILE_COUNT,CONTENT_SIZE,FILE_NAME或者如果加了-q的话,还会列出QUOTA,REMAINING_QUOTA,SPACE_QUOTA,REMAINING_SPACE_QUOTA 23. hadoop fs –count[-q] <path> 1. 2. 3. 4. 5. 6. 7. 8...
importorg.apache.hadoop.conf.Configuration;importorg.apache.hadoop.fs.FileSystem;importorg.apache.hadoop.fs.Path;publicclassFileCount{publicstaticvoidmain(String[]args){try{Configurationconf=newConfiguration();FileSystemfs=FileSystem.get(conf);Pathpath=newPath("/path/to/directory");intfileCount=fs.li...
get(conf); Path directory = new Path("/path/to/directory"); FileStatus[] files = fs.listStatus(directory); int count = 0; for (FileStatus file : files) { if (file.isFile()) { count++; } } System.out.println("Total number of files: " + count); fs.close(); } } 复制代码 以...
[t@dv00938~]$ hadoop fs -du-s -h /t_user/my_hive_db/my_hive_table_test0117/10/1512:17:17INFO hdfs.PeerCache: SocketCache disabled.27.9G /t_user/my_hive_db/my_hive_table_test01 hadoop fs -count [dx@d-143conf]$ hadoop fs -count /user/dx/4524111027926340662670/user/dx [dx@d-...
hadoop fs -count [dx@d-143conf]$ hadoop fs -count /user/dx/4524111027926340662670/user/dx [dx@d-143conf]$ hadoop fs -count /user/dx/*12 4 45844 /user/dx/.Trash 15 502 2382220393 /user/dx/.sparkStaging 1 2 28116579 /user/dx/base_data ...
hadoop fs -count -r / #合并hdfs某个文件夹的文件,并且下载到本地(getmerge) 1 hadoop fs -getmerge / merge #将本地文件剪切到hdfs,相当于对本地文件上传后再删除(moveFormLocal) 1 hadoop fs -moveFromLocal words / #查看当前文件系统的使用状态(df) ...
hadoop fs 具体命令 或者 hdfs dfs 具体命令:两个是完全相同的。 0、命令大全 hadoop fs 或 hdfs dfs 通过-help 得到命令用法 hadoop fs -help mkdir 1、-mkdir 创建目录 Usage:hdfs dfs -mkdir [-p] < paths> 选项:-p 很像Unix mkdir -p,沿路径创建父目录。 2、-ls 查看目录下内容,包括文件名,权...
目前版本来看,官方最终推荐使用的是hadoop fs。当然hdfs dfs在市面上的使用也比较多。 语法格式 [root@server1 ~]# hdfs Usage: hdfs [OPTIONS] SUBCOMMAND [SUBCOMMAND OPTIONS] OPTIONS is none or any of: --buildpaths attempt to add class files from build tree ...
hadoop fs -count -q -h -v hdfs://nn1.example.com/file1 Exit Code: Returns 0 on success and -1 on error. cp Usage:hadoop fs -cp [-f] [-p[topax]] URI [URI...] Copy files from source to destination. This command allows multiple sources as well in which case the destination ...
-- 设置默认使用的文件系统 Hadoop支持file、HDFS、GFS、ali|Amazon云等文件系统 --> <property> <name>fs.defaultFS</name> <value>hdfs://mycluster</value> <final>true</final> </property> <property> <name>io.file.buffer.szie</name> <value>131072</value> </property> <!-- 设置Hadoop本地...