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This article to share with you is about Linux inode occupation 100% how to solve, Xiaobian feel quite practical, so share to everyone to learn, I hope you can read this article after some gains, not much to say, follow Xiaobian to see it.

What is an inode?

Files are stored on a hard disk, and the smallest unit of storage on a hard disk is called a sector. Each sector stores 512 bytes (equivalent to 0.5KB).

When the operating system reads the hard disk, it does not read it sector by sector, which is too inefficient, but reads multiple sectors at once, that is, reads a "block" at a time. This "block" of multiple sectors is the smallest unit of file access. The most common size of "block" is 4KB, that is, eight consecutive sectors form a block.

File data is stored in "blocks," so obviously we must also find a place to store file metadata, such as the file creator, the date the file was created, the file size, and so on. This area where the meta-information of the file is stored is called an inode, translated into Chinese as "index node."

Each file has an inode that contains information about the file.

How to check the innode occupancy of a system

df -ih

How to find the most files in that directory

First go to the root directory/

cd /

then perform

for i in /*; do echo $i; find $i | wc -l; done

or

for i in `ls -1A | grep -v "\.\./ " | grep -v "\./ "`; do echo "`find $i | sort -u | wc -l` $i"; done | sort -rn | head -10

This will return to the directory with the most files under/directory in turn, enter this directory, and then execute the above command, so that the layers of depth will finally determine which directory has the most files.

How to delete all files in that directory

In general, if there should be millions of files in this directory, it will be inefficient if you use rm-rf directory name directly. You can use the following method

find directory-type f -name '*' -print0| xargs -0 rm

It may take a long time, so you'd better open a screen to deal with it.

It is possible that you have encountered the following situation

The requested URL/var/spool/postfix/was not found on this server.

To avoid this, you can execute crontab -e

Add MAILTO='"' at the beginning, then server crond restart Restart crond

The above is how to solve 100% inode occupation in Linux. Xiaobian believes that some knowledge points may be seen or used in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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