dspam_clean - perform periodic maintenance of metadata
dspam_clean [-s[signature_life]] [-p[probability_life]]
[-u[sl,hcl,shl,ihl] ] [ user1 user2 ... userN ]
dspam_clean is used to perform periodic housecleaning on DSPAM’s
metadata dictionary by deleting old or useless data.
-s Performs stale signature purging. If a value is specified, the
default value of 14 days will be overridden. Specifying an age
of 0 will delete all signatures from the user(s) processed.
-p Deletes all tokens from the target user(s) database whose
probability is between 0.35 and 0.65 (fairly neutral, useless
data). If a value is specified, the default life of 30 days will
be overridden. It’s a good idea to use this flag once with a
life of 0 days for users after a significant amount of corpus
-u Deletes all unused tokens from a user’s dataset. Four different
life values are used:
sl Stale tokens which have not been used for a long period of
hcl Tokens with a total hit count below 5 (which will be
assigned a hapaxial value by DSPAM)
shl Tokens witha single spam hit
ihl Tokens with a single innocent hit
Ages may be overridden by specifying a format string, such as
-u30,15,10,10 where each number represents the respective life.
Specifying a life of zero will delete all unused tokens in the
user1 user2 ... userN
Specify the username(s) to perform the selected maintenance
operations on. If no username is specified, all users are
0 Operation was successful.
other Operation resulted in an error.
Jonathan A. Zdziarski
For more information, see http://www.nuclearelephant.com.
dspam(1), dspam_stats(1), dspam_dump(1), dspam_train(1), dspam_merge(1)