over-full cache

[Paul Ewing Jr.]

I'm running Arla 0.23 with FreeBSD 3.1-STABLE.  I've noticed that
sometimes the arlad cache overflows:

> fido 155% /usr/arla/bin/fs getcache
> Arla is using 102413 of the cache's available 102400 1K byte blocks
> (and 98 of the cache's available 4000 vnodes)

At this point, everytime I try to access something not in the cache I
get "No space left on device", and the cache cleaner never gets the
cache usage back below the maximum.

Under normal usage, this seems to happen only occasionally, but I can
reproduce it at will by simply writing ten 10 Mb files within a couple
of minutes.

I'm using the standard values for these variables in
/usr/arla/etc/arlad.conf:

high_bytes 100M
low_bytes 90M
fpriority 100

-- 
Paul J. Ewing Jr.
ewing at ima.umn.edu                            (612) 337-3530 (work)
http://www.ima.umn.edu/~ewing/               (612) 781-1160 (home)