How do I count the number of files in an HDFS directory? The best answers are voted up and rise to the top, Not the answer you're looking for? ok, do you have some idea of a subdirectory that might be the spot where that is happening? For HDFS the scheme is hdfs, and for the Local FS the scheme is file. What were the most popular text editors for MS-DOS in the 1980s? Returns 0 on success and non-zero on error. How about saving the world? As you mention inode usage, I don't understand whether you want to count the number of files or the number of used inodes. OS X 10.6 chokes on the command in the accepted answer, because it doesn't specify a path for find . Instead use: find . -maxdepth 1 -type d | whi Usage: hdfs dfs -copyFromLocal URI. It should work fi as a starting point, or if you really only want to recurse through the subdirectories of a dire --inodes For a file returns stat on the file with the following format: For a directory it returns list of its direct children as in Unix. Why is it shorter than a normal address? Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? The -h option will format file sizes in a "human-readable" fashion (e.g 64.0m instead of 67108864), hdfs dfs -du /user/hadoop/dir1 /user/hadoop/file1 hdfs://nn.example.com/user/hadoop/dir1. -type f finds all files ( -type f ) in this ( . ) hadoop - HDFS: How do you list files recursively? - Stack This is because the type clause has to run a stat() system call on each name to check its type - omitting it avoids doing so. The syntax is: This returns the result with columns defining - "QUOTA", "REMAINING_QUOTA", "SPACE_QUOTA", "REMAINING_SPACE_QUOTA", "DIR_COUNT", "FILE_COUNT", "CONTENT_SIZE", "FILE_NAME". Usage: hdfs dfs -getmerge [addnl]. (which is holding one of the directory names) followed by acolon anda tab Takes a source directory and a destination file as input and concatenates files in src into the destination local file. Thanks to Gilles and xenoterracide for safety/compatibility fixes. Thanks to Gilles and xenoterracide for Hadoop Count Command Returns HDFS File Size and Webfind . The user must be the owner of files, or else a super-user. Note that all directories will not be counted as files, only ordinary files do. The simple way to copy a folder from HDFS to a local folder is like this: su hdfs -c 'hadoop fs -copyToLocal /hdp /tmp' In the example above, we copy the hdp Usage: hdfs dfs -chown [-R] [OWNER][:[GROUP]] URI [URI ]. How about saving the world? if you want to know why I count the files on each folder , then its because the consuming of the name nodes services that are very high memory and we suspects its because the number of huge files under HDFS folders. I come from Northwestern University, which is ranked 9th in the US. Understanding the probability of measurement w.r.t. find . The URI format is scheme://authority/path. And btw.. if you want to have the output of any of these list commands sorted by the item count .. pipe the command into a sort : "a-list-command" | sort -n, +1 for something | wc -l word count is such a nice little tool. Displays the Access Control Lists (ACLs) of files and directories. rev2023.4.21.43403. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. What differentiates living as mere roommates from living in a marriage-like relationship? The -p option behavior is much like Unix mkdir -p, creating parent directories along the path. VASPKIT and SeeK-path recommend different paths. This has the difference of returning the count of files plus folders instead of only files, but at least for me it's enough since I mostly use this to find which folders have huge ammounts of files that take forever to copy and compress them.