E: Write error - write (28 No space left on device)

1：在终端中运行cd命令，提示：

e: Write error - write (28 No space left on device)

E: Cant mmap an empty file

2：使用 df -h 查看磁盘空间情况：

/dev/xvda1 20G 20G 0G 100% /

3：继续查看大文件所在目录：#du --max-depth=1 -h /

4.0K /opt

9.6M /bin

408K /run

4.0K /srv

4.0K /lib64

0 /sys

9.0M /sbin

34M /boot

224K /home

4.0K /dev

du: cannot access ‘/proc/31292/task/31292/fd/4’: No such file or directory

du: cannot access ‘/proc/31292/task/31292/fdinfo/4’: No such file or directory

du: cannot access ‘/proc/31292/fd/4’: No such file or directory

du: cannot access ‘/proc/31292/fdinfo/4’: No such file or directory

0 /proc

284M /lib

80K /tmp

13G /root

4.0K /media

1.3G /mnt

1.2G /usr

16K /lost+found

5.2G /var

6.1M /etc

21G /

可见 /root下面存在大文件，继续查看：#du --max-depth=1 -h /root

8.0K /root/.ssh

13G /root/.pm2

6.0M /root/.forever

17M /root/.npm

4.0K /root/.cache

13G /root

可见，大文件在.pm2下面，进入此目录进行查看：pm2# ll

total 13326616

drwxr-xr-x 4 root root 4096 May 11 21:20 ./

drwx------ 7 root root 4096 Aug 22 08:35 ../

-rw-r--r-- 1 root root 1561 Jun 20 2015 conf.js

-rw-r--r-- 1 root root 22557 Apr 19 00:28 dump.pm2

drwxr-xr-x 2 root root 4096 Apr 21 08:37 logs/

-rw-r--r-- 1 root root 2 Jun 20 2015 module_conf.json

drwxr-xr-x 2 root root 4096 Aug 22 08:38 pids/

-rw-r--r-- 1 root root 13646360576 Aug 22 08:38 pm2.log

-rw-r--r-- 1 root root 5 May 11 21:20 pm2.pid

srwxr-xr-x 1 root root 0 May 11 21:20 pub.sock=

srwxr-xr-x 1 root root 0 May 11 21:20 rpc.sock=

发现pm2.log日志文件为13G，将其删除。

转载于:https://www.cnblogs.com/yshyee/p/5794887.html

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