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Full Discussion: Running 'sync' command frequently.
Operating Systems Linux Running 'sync' command frequently. Post 302875385 by Corona688 on Tuesday 19th of November 2013 11:01:08 AM
Old 11-19-2013
Quote:
Originally Posted by acascianelli
I have a Linux server that runs a Java based app that automates file transfers for a large number of users/systems. I'm running into a problem with the scripts for this automation program in that when I have a function in the script generate an output file, and the next line requires that file to be present; the script will fail because the file hasn't made it to disk yet.
sync is irrelevant -- a file in cache is as good as a file on disk as far as programs are concerned. The file must really be missing, even from cache, a sync won't force it to appear. It's the wait that does the trick either way.

Both sync and short delays are liable to fail I think -- particularly when the system is busy and longer delays might happen. Either correct the java program so it doesn't return until the file actually exists, or poll for the file's existence every so often.

Quote:
My question is, could there be any undesired side affects to running the 'sync' command so often on a system?
Reduced disk performance since its busy doing more writes all the time. It may end up writing more than it would have otherwise, too.
Last edited by Corona688; 11-19-2013 at 12:24 PM..
 

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LEARN ABOUT DEBIAN

zemberek-server

zemberek-server(8)					      System Manager's Manual						zemberek-server(8)

NAME

       zemberek-server - Turkish spell-checker server

SYNOPSIS

       zemberek-server [CONFILE]

       or

       java -jar /usr/share/java/zemberek-server.jar [CONFILE]

DESCRIPTION

       zemberek-server is a Java(TM) based ``Turkish'' spell checker daemon which listens a configured port (by default, 10444) for client connec-
       tions and responds with the Turkish spell checked output in a server-client fashion.  zemberek-server uses Zemberek, a Java(TM) based Turk-
       ish NLP library, at its heart.

       Certain	parts of the servers' behaviour can be controlled in the CONFILE configuration file.  For example, to change the listened port one
       can use the SERVER_PORT setting in CONFILE.

OPTIONS

       There are no options.

NOTES

       To make use of the server, a client program is required (see the next section).

FILES

       /etc/zemberek-server.conf
	      configuration file

       /var/log/zemberek-server.log
	      server's log file when running in the background

SEE ALSO

       zpspell(1)

       the website for further information <https://zemberek.dev.java.net/>

AUTHOR

       Zemberek Team:

       Ahmet A. Akin <ahmetaa@gmail.com> and Mehmet D. Akin <mdakin@gmail.com>

       This manual page was written by Recai Oktas <roktas@debian.org> for the Debian GNU/Linux system, but may be used by others.

Debian/GNU Linux						   February 2006						zemberek-server(8)
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