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Unmounting NFS idle clients from server
Post 302910470 by satish51392111 on Thursday 24th of July 2014 05:30:29 PM
07-24-2014
Unmounting NFS idle clients from server
Hello World,
We have a software repository server in our environment which we use as an NFS server.
Now this has been going on well before I was hired. Now, I observed many users not unmounting the NFS resources after their use. I ran showmount and it showed 513 current sessions.
Is there a way I could know the idle clients (i.e., which haven't been using the mounted NFS resources)?
I thought of a solution - I would automate a script in which I be unmounting all the NFS directories using ssh. So, if the client is still using, the unmount would automatically be declined.
The problem here is I need to enter the password (and even type 'yes' to save RSA key fingerprint) for each of the 513 attempts. Is there a way to automate this? I had tried 'sshpass' but it completely fails.
Could someone help me complete my script? Or this there a better way to automate remote unmounting (no nfs restart/reload please)?
We have a software repository server in our environment which we use as an NFS server.
Now this has been going on well before I was hired. Now, I observed many users not unmounting the NFS resources after their use. I ran showmount and it showed 513 current sessions.
Is there a way I could know the idle clients (i.e., which haven't been using the mounted NFS resources)?I thought of a solution - I would automate a script in which I be unmounting all the NFS directories using ssh. So, if the client is still using, the unmount would automatically be declined.
The problem here is I need to enter the password (and even type 'yes' to save RSA key fingerprint) for each of the 513 attempts. Is there a way to automate this? I had tried 'sshpass' but it completely fails.
Could someone help me complete my script? Or this there a better way to automate remote unmounting (no nfs restart/reload please)?
Last edited by satish51392111; 07-24-2014 at 06:37 PM..
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LEARN ABOUT OSF1
showmount
showmount(8) System Manager's Manual showmount(8) NAME
showmount - Shows remote NFS compatible mounts on a host SYNOPSIS
showmount [-adeT] [-t nnn] [host] FLAGS
Lists all mount points in the form: hostname:dirpath. In this form, hostname is the name of a client that has remotely mounted a directory from an NFS server, and dirpath is the directory that has been mounted. Lists only directories that have been remotely mounted by clients. Shows host's exports list. Specifies an infinite timeout. The default timeout value is 25 seconds. Specifies a timeout value, in sec- onds. The default timeout value is 25 seconds. The default value for host is the current hostname. DESCRIPTION
The showmount command shows status information about the NFS server on host. By default, it prints the names of all hosts that have NFS file systems mounted from the server host. See NFS: Network File System Protocol Specification, RFC1094, Appendix A for a detailed description of the protocol. NOTES
The mountd daemon running on the server only has an idea of the actual mounts, since the NFS server is stateless. showmount will only dis- play the information as accurately as the mount daemon reports it. The default timeout value of 25 seconds can be too brief to read and verify an export list. If you receive timeout messages when using the showmount -e command, use either the -T or the -t options to increase the timeout value. FILES
Specifies the command path Contains a table of local file systems mounted by remote NFS clients RELATED INFORMATION
Commands: mount(8) Daemons: mountd(8) Files: mountdtab(4) delim off showmount(8)