Re: tmpfs

Hej Erich,

Am 20.11.24 um 01:09 schrieb Erich Titl:
> Hi Boris
> 
> Am 19.11.2024 um 22:47 schrieb Boris:
>> Hej Erich,
>>
> ...
> 
>> aproximately 25 MB while being rotated (kept) 4 days.
>>
>> So, if there are 36 MB logged (and compressed) in 4 days and the box 
>> ia up for 10 days, we don't even reach the 121 MB from df .
>>
>> Funny, isn't it?
>>
>> With the uncompressed logs, df -h shows
>> tmpfs                   800.0M    149.0M    651.0M  19% /var/log
>>
>> For me it smells like tmpfs does not release former occupied storage 
>> after logrotating.
> 
> I doubt this, in my case to clear the space a correct restart of the 
> service was needed. 

At the risk of revealing my complete cluelessness: Which service 
(daemon) are you restarting correctly??

[snip]

>>
>> My habit ist to reboot the box when finding it on 100%.
> 
> Well right, this clears the memory storage.
> 
> what you can do is play with the LOGSIZE parameter. It determines if a 
> log gets rotated and if I am not mistaken it is in KB. Then to watch 
> what logrotate does you can always start it like
> 
> sh -x /usr/bin/logrotate
> 
> You will see that savelog is used to compress and rename the file
> 

Thank you for explaining that to me.

Indeed, executing logratate without changing any parameter does eefect 
_something_:

# df -h
tmpfs                   800.0M    133.0M    667.0M  17% /var/log
# sh -x /usr/bin/logrotate
Hangup
# df -h
tmpfs                   800.0M    130.1M    669.9M  16% /var/log

I'll follow your hint and experiment with LOGSIZE, which now is
# grep LOGSIZE *
hostapd:LOGSIZE=1024
lighttpd:LOGSIZE=1024
ntp:LOGSIZE=4096
pppd:LOGSIZE=1024
shorewall:LOGSIZE=1024
shorewall6:LOGSIZE=1024
syslog:# NOTE: depends if LOGSIZE has been reached
syslog:# LOGSIZE - size in kb when logrotate move and compress log files
syslog:LOGSIZE=1024
ulogd:LOGSIZE=1024

Thanks,


Boris


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