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Linux 文件系统 inode 耗尽问题解决 - 颇忒脱的技术博客
source link: https://chanjarster.github.io/post/linux/inode-exhausted/
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Linux 文件系统 Inode 耗尽问题解决
线上发现服务器执行任何命令都出现这个错误：
bash: cannot create temp file for here-document: No space left on device
发现磁盘空间是够的：
df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 618M 8.8M 609M 2% /run
/dev/sda1 100G 50G 50G 1% /
...
查看 inode 用量：
Filesystem Inodes IUsed IFree IUse% Mounted on
tmpfs 459110 842 458268 1% /run
/dev/sda1 2621440 2621440 0 0% /
...
根据这个帖子的方法，检查哪个目录下的文件多：
sudo find . -xdev -type f | cut -d "/" -f 2 | sort | uniq -c | sort -n
或者按照这个方法 count_em.sh：
#!/bin/bash
# count_em - count files in all subdirectories under current directory.
echo 'echo $(ls -a "$1" | wc -l) $1' >/tmp/count_em_$$
chmod 700 /tmp/count_em_$$
find . -mount -type d -print0 | xargs -0 -n1 /tmp/count_em_$$ | sort -n
rm -f /tmp/count_em_$$
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