On 31.07.2014 14:39, Oliver Grawert wrote: > hi, > > today I landed some initial changes to our plumbing layer that will > affect logging of the system and where you have to look for stuff ... > > a while ago we already changed the rsyslog setup to only centrally log > to /var/log/syslog, all other log files should be largely ignored (i.e. > no more separate kern.log with duplicated log lines) > > additionally to this change I uploaded a new logrotate configuration > (logrotate currently runs once a day triggered by cron or anacron) that > it will flush the /var/log/syslog file if it exceeds 10MB. > > in case you are developing on some systemic bits and need more logging > or to make sure the file does not get flushed please edit (or remove) > /etc/logrotate.d/touch-syslog to your needs (needs a writable image > indeed) > > additionally to this, while we need to have a swap file/partition > available to make the kernel behave better in case of memory management, > we do not actually want to *use* that swap space ... recently ricardo > already landed a change that reduced the size of the swap file to 32M (i > would like to see us to actually go a lot lower, i.e. the minimum > allowed size since we just waste diskspace with that) > > to make sure the swap space does not get used I added a "vm.swappiness" > setting of 0 via the newly shipped /etc/sysctl.d/60-swappiness.conf > file. Out of curiosity on my part, in what way is a tiny swap file that never gets used useful to the kernel?
Regards,
Christian
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