[Dovecot] cache auth clear

[Juan Carlos Sanchez]

Hello:

Have found probably auth cache clearing is not working well.

I get this log after issuing several SIGUSR2 and SIGHUP from command line:

Nov 18 13:56:26 dovecot: Info: Dovecot v1.2.6 starting up
Nov 18 13:56:33 auth(default): Info: Authentication cache hits 5/14 (35%)
Nov 18 13:56:33 auth(default): Info: Authentication cache inserts:
positive: 9 1213B, negative: 0 0B
Nov 18 13:57:40 auth(default): Info: Authentication cache hits 47/112 (41%)
Nov 18 13:57:40 auth(default): Info: Authentication cache inserts:
positive: 65 8322B, negative: 0 0B
Nov 18 13:58:00 auth(default): Info: Authentication cache hits 25/45 (55%)
Nov 18 13:58:00 auth(default): Info: Authentication cache inserts:
positive: 21 2721B, negative: 0 0B
Nov 18 13:58:24 auth(default): Info: SIGHUP received, clearing cache
Nov 18 13:58:57 auth(default): Info: Authentication cache hits 58/121 (47%)
Nov 18 13:58:57 auth(default): Info: Authentication cache inserts:
positive: 63 8223B, negative: 0 0B

As you can see after the SIGHUP and supposed cache clearing, then cache
stats continue growing as if nothing had been cleaned.

Is this normal behaviour ?

Dovecot version is 1.2.6

Thanks.

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Juan Carlos Sanchez Hernandez
Responsable de  Seguridad y Correo Electronico
Servicio de Planificacion Informatica y Comunicaciones
Universidad Politecnica de Madrid
Rectorado
Avda. Ramiro de Maeztu 7
28040 Madrid
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