question about ctl_cyrusdb

[Liu Jinhui]

   Yes, I just finished a test to send fifty thousand mails to user's mai=
lbox.
Most of the mails is duplicate delivery. And I also got lots of DB locker=
s=20
warning during the delivering. And I found there were some backup of DB i=
n=20
the datebase directory. Need I delete them by hand or the system will do
a rotate?

>On Fri, 15 Nov 2002, Liu Jinhui wrote:
>
>>   When I restart cyrus server. I found that a process called
>> ctl_cyrusdb was running for a long time . From the log, it seemed
>> that it was recovering the datebase. But it is used nearly ten
>> minutes to recover. Was it normal?
>
>Depending on the size of your databases, the database type, and the time
>since the last checkpoint, yes, this can be normal (and it can go for mu=
ch
>longer as well).
>
>The best way to reduce this is to decrease the checkpoint interval (the
>time between when ctl_cyrusdb -c runs).  I think the default from the
>documentation is something like 30 minutes.  Busy sites should consider
>values as short as even 5 minutes.
>
>When this has hit us at CMU, it's most frequently been with duplicate.db=
,
>and every now and then we just decide to nuke the db rather than wait fo=
r
>it to finish (since the worst that happens is you get a duplicate
>delivery to someone's mailbox).
>
>-Rob
>
>-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D=
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-
>Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
>Research Systems Programmer * /usr/contributed Gatekeeper

=3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D =3D=
 =3D
		=09

=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=D6=C2
=C0=F1=A3=A1
=20
				=20
=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1Liu Jinhui
=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1hui at student.dlut.edu.cn
=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A1=A12002-11-15