0

I have some problems and i want to know where i have to check.

  • my env: ceph nfs mount to a k8s pod

  • problem:

    • at mounted path (on k8s node and inside the pod too), ls/tree not working, but i can read/write files

    • because i can read files and only can't see in filesystem, so i thought inode is weird.

    • mounted volume has negative IUsed and increasing Inodes when i create/modify files, which i don't know why.

    • here is the command/result and my mount option(on the machine)

      sh-4.2# ls -al
total 0
drwx--x--x   1  root root 7 6 02:45 .
drwxrwxrwx 216  root root 7 6 02:45 ..
sh-4.2# 
sh-4.2# cd 03
sh-4.2# 
sh-4.2# ls -al
total 0
drwxr-xr-x   1  root root 7 6 02:45 .
drwx--x--x 216  root root 7 6 02:45 ..
sh-4.2# 
sh-4.2# cat test
cat: test: No such file or directory
sh-4.2# 
sh-4.2# echo "FILE EXISTS" > test
sh-4.2# 
sh-4.2# ls -al
total 0
drwxr-xr-x   1  root root 7 6 02:45 .
drwx--x--x 216  root root 7 6 02:45 ..
sh-4.2# 
sh-4.2# cat test
FILE EXISTS
sh-4.2# 
sh-4.2# df -iH --type=nfs4
Filysystem                  Inodes  IUsed  IFree  IUse%  Mounted on 
some.ceph.url.com/path1        657  -1.7G   1.7G      -  /data0/kubelet/pods/**/volumes/kubernetes.io~nfs/path1
sh-4.2#
sh-4.2# cat /etc/mtab | grep nfs4
some.ceph.url.com/path1 /data0/kubelet/pods/**/volumes/kubernetes.io~nfs/**** 
nfs4 rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,
timeo=600,retrans=2,sec=sys,clientaddr=172.30.*.*,local_lock=none,addr=172.30.*.* 0 0

Thank you in advance. where can i find the root cause or searching keyword?

whojes
  • 1
  • 2

0 Answers0