Space in the /var/log directory of a Stratux device, can quickly become consumed, if you don’t have a log management / rotation strategy.

I use a couple of mitigation methods, including a dedicated filesystem for /var/log (so the system does not become unstable and crash).

On the Stratux device itself, I use the following script to auto-rotate the sqlite database file every 24 hours, using a crontab entry.

crontab entry

PATH=/root/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

# Run the Stratux DB Rollover
5 6 * * *  /root/stx-rollover.sh >> /var/log/stx-rollover.log 

Rotation script

stx-rollover.sh

#!/bin/bash

# Startup Settings
STARTTIME=`date +%m-%d_%T`;
TIMESTAMP=`date +%m-%d`;
LOGPATH="/var/log";
OLDFILE="$LOGPATH/stratux.sqlite";
NEWFILE="$LOGPATH/stratux.sqlite.$TIMESTAMP";

echo "$STARTTIME === Stratux Rollover === "

echo "Stratux STOP"
service stratux stop   

echo "Check for $OLDFILE"
ls -ltr $OLDFILE 

if [ -e "$OLDFILE" ]
then
	echo "Moving $OLDFILE ==> $NEWFILE"
	mv $OLDFILE $NEWFILE
else 
	echo "ERROR - Unable to locate database $OLDFILE"
fi

## Startup Stratux Now.
echo "Stratux START"
service stratux start

if [ -s "$NEWFILE" ]
then
	echo "Moved DB to $NEWFILE"
	ls -l $NEWFILE
	echo "Compressing $NEWFILE"
	gzip $NEWFILE
else 
	echo "ERROR - Unable to locate $NEWFILE" 
fi

echo "Rollover Completed"

End result of this process, is a list of gzipped date stamped databases:

[...]
    152905988 Nov  4 01:05 stratux.sqlite.11-04.gz
    135434058 Nov  6 11:04 stratux.sqlite.11-05.gz
    148176518 Nov  6 11:45 stratux.sqlite.11-06.gz
    157341677 Nov  7 13:10 stratux.sqlite.11-07.gz
[...]

In addition to this logfile rotation strategy, I also pull off these files on a daily basis and archive them to another *NIX based system in my local network. This process is handled using the rsync utility. This process is run every 24 hours, using a cron job on the archival system.

rsync file archiving process

download.dbs.sh

echo '======================================'
date
rsync -a --remove-source-files -e "ssh -l root" 192.100.0.21:/var/log/stratux.sqlite.*.gz /Development/STRATUX/sqlite-dbs/.

This should be a good starting point for your own Stratux logfile management strategy.