this is the xfs_info out_put:
[root@localhost home]# xfs_info /home
meta-data=/dev/mapper/centos-home isize=256 agcount=4, agsize=28938752 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=115755008, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal bsize=4096 blocks=56521, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
/home/www $ du --inodes| sort -n
a few minutes later. someone delete the prometheus directory. and the count of inodes increased automatically.
but the space of /home is still out of usage.
a few minutes later again. the space is back. and I don't know why.
[root@localhost home]# df --o
Filesystem Type Inodes IUsed IFree IUse% 1K-blocks Used Avail Use% File Mounted on
/dev/mapper/centos-root xfs 52428800 36167 52392633 1% 52403200 2066444 50336756 4% - /
devtmpfs devtmpfs 998973 374 998599 1% 3995892 0 3995892 0% - /dev
tmpfs tmpfs 1001388 1 1001387 1% 4005552 0 4005552 0% - /dev/shm
tmpfs tmpfs 1001388 461 1000927 1% 4005552 383784 3621768 10% - /run
tmpfs tmpfs 1001388 13 1001375 1% 4005552 0 4005552 0% - /sys/fs/cgroup
/dev/sda1 xfs 512000 330 511670 1% 508588 122148 386440 25% - /boot
/dev/mapper/centos-home xfs 463020032 6754 463013278 1% 462793948 6272680 456521268 2% - /home
tmpfs tmpfs 1001388 1 1001387 1% 801112 0 801112 0% - /run/user/0