Ivo Chutkin wrote: > Hello, > I am collecting interface statistics with pfstat on OpenBSD 4.9. > Everything works fine except pfstat -t (days). The .db files getting big > so I want to clear old entries, unfortunately it does not work. > Here is what I do: > root@storage. > ~ # du -h /var/db/pfstat.db > 801M /var/db/pfstat.db > > root@storage. > ~ # /usr/local/bin/pfstat -t 30:45 -d /var/db/pfstat.db > > root@storage. > ~ # du -h /var/db/pfstat.db > 801M /var/db/pfstat.db > > root@storage. > ~ # > > The .db file is at least 6 months old, so there should be entries to > delete. I miss something obvious? >
What did you expect, a smaller file ? I'm not familiar with pfstat but I suppose you could check if the old records still exist. If not, I suspect that, in general, when records are deleted from a database, the actual storage isn't freed up. This way the database program can reuse it for storing new records. You could check if pfstat has an option to purge/shrink the database or reclaim the database storage. Or maybe a tool exists to shrink a .db file.
