Linux root directory full but du look at the directory is not always a lot of problems

DF View root directory full disk space

[[email protected] logs]# DF
File System               1k-block       used       available% mount point
/dev/sda2             41284928  0   Span style= "FONT-SIZE:14PX;" > 41284928   100%/
tmpfs                   1962324         0   1962324   0%/DEV/SHM
/dev/sda1                516040     59236    430592  13%/boot
/dev/sda5               1542096     35072    1428688   3%/data

View space consumption in the root directory, accounting for only 10G

Conjecture should not free up space after deleting files

Use lsof|grep deleted

You can see the files with a bunch of deleted states

[Email protected]/]# Lsof|grep deleted
VMTOOLSD 1110 root 5u REG 8,2 9341 1703941/tmp/vmware-root/apploader-1110.log (DE leted)
Java 3873 root 1w REG 8,2 8283185468 661954/HOME/TESTER/ZOOKEEPER/LOGS/ZOOKEEPER.O UT (deleted)
Java 3873 root 2w REG 8,2 8283185468 661954/home/tester/zookeeper/logs/zookeeper.o UT (deleted)
Java 11059 Tester 1w REG 8,2 2381137531 1051235/home/tester/tomcat_****_****_8089/logs /catalina.out (Deleted)
Java 11059 tester 2w REG 8,2 2381137531 1051235/home/tester/tomcat_****_****_8089/logs /catalina.out (Deleted)
Java 18084 root 1w REG 8,2 2612191232 531376/home/tester/tomcat_****_*****_8091/log S/catalina.out (Deleted)
Java 18084 root 2w REG 8,2 2612191232 531376/home/tester/tomcat_****_*****_8091/log S/catalina.out (Deleted)
Java 18084 root 50w REG 8,2 15403225088 664984/home/work/*****/log/***_****_****/cale NdarPriceTask.log (Deleted)
Vim 20813 tester 0u CHR 136,8 0t0 11/dev/pts/8 (Deleted)
Vim 20813 tester 1u CHR 136,8 0t0 11/dev/pts/8 (Deleted)
Vim 20813 Tester 2u CHR 136,8 0t0 11/dev/pts/8 (Deleted)
VIM 20813 Tester 4u REG 8,2 24576 1058929/home/work/****/log/****/.tomcat_stdout . LOG.SWP (Deleted)
Vim 31955 tester 0u CHR 136,4 0t0 7/DEV/PTS/4 (Deleted)
Vim 31955 tester 1u CHR 136,4 0t0 7/DEV/PTS/4 (Deleted)
Vim 31955 Tester 2u CHR 136,4 0t0 7/DEV/PTS/4 (Deleted)
VIM 31955 Tester 4u REG 8,2 335872 1050381/home/work/*****/log/****/.tomcat_stdou T.LOG.SWP (Deleted)

After restarting the service or restarting the machine , the space is released

Linux root directory full but du look at the directory is not always a lot of problems