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Operating Systems Linux Red Hat Du -sh command taking time to calculate the big size files Post 302909539 by Peasant on Thursday 17th of July 2014 01:46:46 PM
Old 07-17-2014
I have noticed on NFS mountpoints this situation :

Make a dir on NFS with couple of files in them.
Copy a big tar file or alike (couple of GB, so it takes time) to that directory.

Do a ls -lrt with truss/truss (do same with du to determine where it got stuck)
I noticed that ls command is sleeping on lstat call (get file status).

But if you do a while true do ls -lrt ... it will be slow first time, and fast every other loop iterations.
From command line during file copy, every ls executed will exhibit the same symptoms.

Can any of you experts explain, is there some kind of issue in NFS design in these kinds of situation with total size in bytes changing and lstat call on NFS files ?
 

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sftp-server(1M)                                           System Administration Commands                                           sftp-server(1M)

NAME
sftp-server - SFTP server subsystem SYNOPSIS
/usr/lib/ssh/sftp-server DESCRIPTION
sftp-server implements the server side of the SSH File Transfer Protocol as defined in the IETF draft-ietf-secsh-filexfer. sftp-server is a subsystem for sshd(1M) and must not be run directly. There are no options or config settings. To enable the sftp-server subsystem for sshd add the following to /etc/ssh/sshd_config: Subsystem sftp /usr/lib/ssh/sftp-server See sshd_config(4) for a description of the format and contents of that file. There is no relationship between the protocol used by sftp-server and the FTP protocol (RFC 959) provided by in.ftpd. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 An error occurred. FILES
/usr/lib/sftp-server ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWsshdu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
sftp(1), ssh(1), ssh-add(1), ssh-keygen(1), sshd(1M), sshd_config(4), attributes(5) To view license terms, attribution, and copyright for OpenSSH, the default path is /var/sadm/pkg/SUNWsshdr/install/copyright. If the Solaris operating environment has been installed anywhere other than the default, modify the given path to access the file at the installed location. AUTHOR
Markus Friedl SunOS 5.10 30 Jul 2003 sftp-server(1M)
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