我们可以看到每天都会创建 atop 日志,并且占用大量空间
ls -l /var/log/atop/
total 1634632
-rw-r--r-- 1 root root 127992086 Aug 30 01:49 atop_20180829
-rw-r--r-- 1 root root 262277153 Aug 31 00:00 atop_20180830
-rw-r--r-- 1 root root 321592670 Sep 1 00:00 atop_20180831
-rw-r--r-- 1 root root 330041977 Sep 2 00:00 atop_20180901
-rw-r--r-- 1 root root 269040388 Sep 3 00:00 atop_20180902
-rw-r--r-- 1 root root 274807097 Sep 4 00:00 atop_20180903
-rw-r--r-- 1 root root 85426960 Sep 4 06:03 atop_20180904
-rw-r--r-- 1 root root 0 Sep 4 06:03 daily.log
如何将 atop 日志限制为仅 5 个日志(最后 5 天)
答案1
在 RH/CentOS 中atop
不受logrotate
.
其中/usr/share/atop/atop.daily
有一个处理atop
日志文件轮换的示例脚本。
该脚本作为查找行删除超过 28 天的日志,如下所示:
# delete logfiles older than four weeks
# start a child shell that activates another child shell in
# the background to avoid a zombie
#
( (sleep 3; find $LOGPATH -name 'atop_*' -mtime +28 -exec rm {} \;)& )
您可以将该脚本复制到/etc/cron.daily
并将天数更改为 5。
( (sleep 3; find $LOGPATH -name 'atop_*' -mtime +5 -exec rm {} \;)& )
处理日常文件也可能有点不方便。使用上面的脚本,如果您不打算进行纯粹的每日轮换,您还可以编辑/etc/sysconfig/atop
和更改持续时间,例如 10 分钟,如下所示:
INTERVAL=600
作为备选,如果您确实想每天轮换它,您可以创建一个logrotate
文件,如下/etc/logrotate.d/atop
所示:
/var/log/atop/atop_20[0-9][0-9][0-9][0-9][0-9][0-9] {
missingok
daily
nodateext
rotate 5
ifempty
nocreate
postrotate
/usr/bin/find /var/log/atop/ -maxdepth 1 -mount -name atop_20\[0-9\]\[0-9\]\[0-9\]\[0-9\]\[0-9\]\[0-9\]\* -mtime +40 -exec /bin/rm {} \;
endscript
}
如果做logrotate
版本,需要保留日常文件,并且不要更改INTERVAL参数。
答案2
在阅读并花费了一些时间后找到了这个解决方案。
#!/bin/sh
LOGOPTS="" # default options
LOGINTERVAL=600 # default interval in seconds
LOGGENERATIONS=28 # default number of days
LOGPATH=/var/log/atop # default log location
# allow administrator to overrule the variables
# defined above
#
DEFAULTSFILE=/etc/sysconfig/atop # possibility to overrule vars
if [ -e "$DEFAULTSFILE" ]
then
. "$DEFAULTSFILE"
# validate overruled variables
# (LOGOPTS and LOGINTERVAL are implicitly by atop)
#
case "$LOGGENERATIONS" in
''|*[!0-9]*)
echo non-numerical value for LOGGENERATIONS >&2
exit 1;;
esac
fi
CURDAY=`date +%Y%m%d`
BINPATH=/usr/bin
PIDFILE=/var/run/atop.pid
# verify if atop still runs for daily logging
#
if [ -e "$PIDFILE" ] && ps -p `cat "$PIDFILE"` | grep 'atop$' > /dev/null
then
kill -USR2 `cat "$PIDFILE"` # final sample and terminate
CNT=0
while ps -p `cat "$PIDFILE"` > /dev/null
do
CNT=$((CNT + 1))
if [ $CNT -gt 5 ]
then
break;
fi
sleep 1
done
rm "$PIDFILE"
fi
# delete logfiles older than N days (configurable)
# start a child shell that activates another child shell in
# the background to avoid a zombie
#
( (sleep 3; find "$LOGPATH" -name 'atop_*' -mtime +"$LOGGENERATIONS" -exec rm {} \;)& )
# activate atop with an interval of S seconds (configurable),
# replacing the current shell
#
exec gzip $LOGPATH/atop_$[CURDAY -1]
echo $$ > $PIDFILE
exec systemctl restart atop > "$LOGPATH/daily.log" 2>&1
将其添加到 /etc/crond.daily/atop.daily
希望这有帮助