Best answer: How do I know if my mount is NFS stale?

How check stale NFS mount?

7 Answers. mount can list NFS mounts directly. read -t (a shell builtin) can time out a command. stat -t (terse output) still hangs like an ls *.

Why do NFS mounts go stale?

A filehandle becomes stale whenever the file or directory referenced by the handle is removed by another host, while your client still holds an active reference to the object. … So this can occur if the directory is modified on the NFS server, but the directories modification time is not updated.

How do I fix NFS stale handle?

Try restarting NFS first on the server and then on the clients. This may clear the file handles. Rebooting NFS servers with files opened from other servers is not recommended. This is especially problematic if the open file has been deleted on the server.

What is no stale error in NFS?

This NFS Stale File Handle error occurs due to following reasons: A file handle becomes stale when the file or directory referenced by the handle is removed by another host/server, while our client still holds an active reference to the object file/directory.

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How remove stale NFS file handle Linux?

How to resolve NFS stale file handle issue in linux ?

  1. Try to umount the partition.
  2. Try to check the processes using this partition.
  3. Now umount the partition in lazy way to clear up the stale handles.
  4. Mount the partition back.

How do I show mounts in NFS?

Use the showmount command to display the remote NFS server mount information. If you omit the options, the default option displays hostnames of all remote mounts from the hostname NFS server. If you omit the hostname parameter, then the local hostname is used.

What is Fsid in NFS?

fsid=num|root|uuid. NFS needs to be able to identify each filesystem that it exports. Normally it will use a UUID for the filesystem (if the filesystem has such a thing) or the device number of the device holding the filesystem (if the filesystem is stored on the device).

What happens when NFS server goes down?

The NFS server sends the client a file handle after the client is authorized to access the shared volume. … However, because UDP is stateless, if the server goes down unexpectedly, UDP clients continue to saturate the network with requests for the server.

How check NFS mount Linux?

Show NFS shares on NFS Server

  1. Use showmount to show NFS shares. …
  2. Use exportfs to show NFS shares. …
  3. Use master export file /var/lib/nfs/etab to show NFS shares. …
  4. Use mount to list NFS mount points. …
  5. Use nfsstat to list NFS mount points. …
  6. Use /proc/mounts to list NFS mount points.
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How do I reset my NFS mount?

1 Answer

  1. You need to use the options soft , bg , and probably timeo like so: sudo mount -t nfs -o soft,bg,timeo=30 IP:/share /mountpoint. Please see man nfs for information and usage.
  2. When the connection to the NFS share is interrupted, refresh the mount-point with umount -f like so: sudo umount -f /mountpoint.

What is Exportfs in Linux?

Description. The exportfs command makes local directories available for Network File System (NFS) clients to mount. This command is normally invoked during system startup by the /etc/rc. nfsfile and uses information in the /etc/exports file to export one or more directories, which must be specified with full path names …

What is not accessible stale file handle?

Cause: This issue happens when an application opens or creates a file, deletes and closes it, and then attempts to access or delete the same file again. Solution1: Restart the application.

How do you unmount a stale file handle?

Detach the filesystem from the filesystem hierar- chy now, and cleanup all references to the filesystem as soon as it is not busy anymore. (Requires kernel 2.4. 11 or later.) If sudo umount -f /mnt/1 does not work, you can try sudo umount -l /mnt/1 .

How do I start NFS?

By default, the nfs service does not start automatically at boot time. To configure the NFS to start up at boot time, use an initscript utility, such as /sbin/chkconfig, /sbin/ntsysv, or the Services Configuration Tool program.

How do you fix a Glusterfs stale file handle?

BarakSason commented on Jun 25, 2020

  1. Create a file.
  2. Rename it in such a way a linkto file is created on another brick.
  3. Delete the file in such a way that the linkto file is not deleted.
  4. Create another file and rename it to the name of the linkto file.
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