RM does not solve the problem deleted to free up space

www@172-18-8-12 log]$ df -h

Filesystem Size Used Avail Use% Mounted on
/dev/vda1 120G 101G 20G 84% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 601M 7.2G 8% /run

When I delete files directly with no additional parameters rm lf, did not release the results of space

File has been found, access to information, the following solution to the problem

(1) installation tool yum install lsof

root@pts/5 # yum install lsof
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirrors-internal.yyhu.com
* extras: mirrors-internal.yyhu.com
* updates: mirrors-internal.yyhu.com
base | 3.6 kB 00:00:00
epel | 5.4 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
http://repo.zabbix.com/zabbix/3.2/rhel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2604:a880:1:20::b82:1001: Network is unreachable"
Trying other mirror.
zabbix | 2.9 kB 00:00:00
zabbix-non-supported | 951 B 00:00:00
(1/7): epel/x86_64/group_gz | 88 kB 00:00:00
(2/7): base/7/x86_64/group_gz | 166 kB 00:00:00
(3/7): epel/x86_64/updateinfo | 996 kB 00:00:00
(4/7): extras/7/x86_64/primary_db | 205 kB 00:00:00
(5/7): base/7/x86_64/primary_db | 6.0 MB 00:00:00
(6/7): updates/7/x86_64/primary_db | 7.4 MB 00:00:00
(7/7): epel/x86_64/primary_db | 6.8 MB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package lsof.x86_64 0:4.87-6.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

============================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================
Installing:
lsof x86_64 4.87-6.el7 base 331 k

Transaction Summary
============================================================================================================================================
Install 1 Package

Total download size: 331 k
Installed size: 927 k
Is this ok [y/d/N]: y
Downloading packages:
lsof-4.87-6.el7.x86_64.rpm | 331 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
Installing : lsof-4.87-6.el7.x86_64 1/1
Verifying : lsof-4.87-6.el7.x86_64 1/1

Installed:
lsof.x86_64 0:4.87-6.el7

Complete!

(2) to view the relevant processes to be kill (not free up space in the second column)

root@pts/5 # lsof -n / |grep deleted
dbus-daem 551 dbus 5r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
polkitd 556 polkitd 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 923 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 923 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 923 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 924 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 924 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 924 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 925 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 925 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 925 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 926 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 926 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 926 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 927 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 927 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 927 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
zabbix_ag 928 zabbix 1w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 928 zabbix 2w REG 253,1 14809 167772882 /var/log/zabbix/zabbix_agentd.log-20181114 (deleted)
zabbix_ag 928 zabbix 3r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
sssd 1466 root 16r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
sssd_be 1467 root 23r REG 253,1 10406312 100664504 /var/lib/sss/mc/initgroups (deleted)
java 16800 www 1w REG 253,1 58851191267 134218392 /www/data-service/log/sys.log (deleted)
java 17417 root 1w REG 253,1 27109202795 388015 /tmp/admin.log (deleted)
java 17417 root 2w REG 253,1 27109202795 388015 /tmp/admin.log (deleted)

(3) KILL free up space

root@pts/5 # kill -9 16800
172-18-8-173.youyuan-idc.com [/home/shaohualong] 2019-08-07 10:09:00
root@pts/5 # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 120G 46G 75G 38% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 601M 7.2G 8% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
192.168.0.71:/vol/vol2 2.0T 1.5T 551G 73% /share
tmpfs 1.6G 0 1.6G 0% /run/user/0
tmpfs 1.6G 0 1.6G 0% /run/user/1285400147
tmpfs 1.6G 0 1.6G 0% /run/user/1285400064
tmpfs 1.6G 0 1.6G 0% /run/user/3527

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Origin www.cnblogs.com/vkbwxdx/p/11314386.html