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Full Discussion: Logrotate 0 byte file
Top Forums UNIX for Beginners Questions & Answers Logrotate 0 byte file Post 303043825 by MyUserName7000 on Friday 7th of February 2020 03:16:47 PM
Old 02-07-2020
Logrotate 0 byte file
Hello,

For various reasons I decided to rebuild my log server on a new microSD. To simplify matters I restored a backed up copy of the appropriate config files and uploaded them to the new log server once syslog-ng was setup. The issue I am running into now is when logrotate compresses the log file it compresses the file and either creates or leaves another one that 0 bytes.

In the syslog-ng file below I have tried to add nocreate and copytruncate and that didn't change a thing.

Code:
/var/log/mikrotik/mikrotik.*.log
{
        rotate 2
        daily
        compress
        missingok
        notifempty
        postrotate
                invoke-rc.d syslog-ng reload > /dev/null
        endscript
}

Reviewing the logrotate.conf file I see no indication of either create or copytruncate being uncommented. There has only been one day that the 0 byte file wasn't created and that was when I uncommented "create" saved and restarted syslog-ng and commented it out saved and restarted syslog-ng but it came back the nexdt night.

Code:
# see "man logrotate" for details
# rotate log files weekly
daily

# keep 4 weeks worth of backlogs
rotate 2

# create new (empty) log files after rotating old ones
#create

# uncomment this if you want your log files compressed
compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# no packages own wtmp, or btmp -- we'll rotate them here
/var/log/wtmp {
    missingok
    monthly
    create 0664 root utmp
    rotate 1
}

/var/log/btmp {
    missingok
    monthly
    create 0660 root utmp
    rotate 1
}

# system-specific logs may be configured here


Why is this file being left/created? Am I missing a file somewhere or is there something in the config that causing this issue. I also do not have this provlem on the log server that the config files were copied from which is why i am at a loss. I don't want to just



Syslog-ng.conf

Code:
@include "scl.conf"

# Syslog-ng configuration file, compatible with default Debian syslogd
# installation.

# First, set some global options.
options { chain_hostnames(off); flush_lines(0); use_dns(no); use_fqdn(no);
          owner("root"); group("adm"); perm(0644); stats_freq(0);
          bad_hostname("^gconfd$");
};

# Accept connection on UDP
source s_net { udp (); };

# MIKROTIK ###########
# Add Filter to add our mikroti
filter f_mikrotik { host( "192.168.88.1" ); };
# Add destination file where logs will be stored
#destination df_mikrotik { file("/home/pi/files/mikrotik.log"); };
log { source ( s_net ); filter( f_mikrotik ); destination ( df_mikrotik ); };
destination df_mikrotik {
file("/var/log/mikrotik/mikrotik.${YEAR}.${MONTH}.${DAY}.log"
template-escape(no));
};

########################
# Sources
########################
# This is the default behavior of sysklogd package
# Logs may come from unix stream, but not from another machine.
#
source s_src {
       system();
       internal();
};

 

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LEARN ABOUT DEBIAN

ns_server

ns_info(3aolserver)					    AOLserver Built-In Commands 				       ns_info(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME

       ns_info, ns_server, ns_stats - commands

SYNOPSIS

       ns_info address

       ns_info argv0

       ns_info boottime

       ns_info builddate

       ns_info config

       ns_info home

       ns_info hostname

       ns_info interp

       ns_info label

       ns_info log

       ns_info name

       ns_info pageroot

       ns_info platform

       ns_info server

       ns_info tcllib

       ns_info uptime

       ns_info version

       ns_server option ?arg arg ...?

       ns_stats option ?arg arg ...?
_________________________________________________________________

DESCRIPTION

       ns_info boottime
	      Returns the server boot time in seconds.
       ns_info config
	      Returns the configuration file name.
       ns_info home
	      Returns the directory where the AOLserver was installed.
       ns_info hostname
	      Returns the name of the host on which server is running (e.g., www.myhost.com).
       ns_info interp
	      Returns the number of the Tcl interpreter currently being used.
       ns_info label
	      Returns the source code label for the server. If no label was used, "unlabeled" is returned.
       ns_info log
	      Returns the location of the server log file (e.g., /home/myserver/log/server.log).
       ns_info name
	      Returns the name of the AOLserver. It's usually "AOLserver."
       ns_info pageroot
	       returns the directory containing the HTML pages for this virtual server.
       ns_info platform
	      Returns the name of the platform that the server is running on (e.g., Solaris).
       ns_info server
	      returns the name of this virtual server.
       ns_info tcllib returns the directory where the AOLserver Tcl source code resides for this virtual server.

       ns_info uptime returns the time in seconds that the server has been up.

       ns_info version returns the version of the AOLserver.

SEE ALSO

       nsd(1), info(n)

KEYWORDS

AOLserver								4.0						       ns_info(3aolserver)
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