Re: paternalism silent concurrency

[Bob C. Ruddy]

We just recompiled qmail with conf-split changed to 512 from the default
of 23. Wow we saw a huge increase in the throughput. Thanks.

Bob

paternalism silent concurrency

[Bob C. Ruddy]

Below is the top of the output from qmail-showctl. My questions are what
is paternalism and silent concurrency? We are running a test now that
is just testing the receiving of large numbers of email via smtp and
storing it local. What I am seeing is the email coming it and sitting in
the Q. This Q keeps gettnig larger and larger. It seems as though there is
room on the box as far as IO is concerned. So I'd like to up the local
concurrency limit.

bob

qmail home directory: /var/qmail.
user-ext delimiter: -.
paternalism (in decimal): 2.
silent concurrency limit: 500.
subdirectory split: 23.
user ids: 7790, 7791, 7792, 0, 7793, 7794, 7795, 7796.
group ids: 2108, 2107.

badmailfrom: (Default.) Any MAIL FROM is allowed.

bouncefrom: (Default.) Bounce user name is MAILER-DAEMON.

bouncehost: (Default.) Bounce host name is mailcluster.somehwere.net.

concurrencylocal: Local concurrency is 75.

concurrencyremote: (Default.) Remote concurrency is 20.

Re: paternalism silent concurrency

[Bob C. Ruddy]

Thanks for the info.

I've been using qmail for 3 years now and love it. It has worked great.
I've never lost an email with it and it has been rock solid. Today was day
two at my new job where they are rolling out a large, 5 million email a
day, qmail setup. There were some issues, but with changes to disk layout
and some solaris tcp tuning, testing has been promising but needs more
tweaking.  Is there a set or rules or tunning characteristics to watch
for for large email infrastructures? Has someone written a decent paper or
is there a really good book out there? The running qmail book is great but
again it doesn't seem to address scalabiliy issues, etc. What I'm looking
for doesn't have to be qmail specific either. Thanks.

Thanks again for the help.

Bob

On Wed, 20 Jun 2001, Charles Cazabon wrote:

-Bob C. Ruddy [EMAIL PROTECTED] wrote:
- Below is the top of the output from qmail-showctl. My questions are what
- is paternalism and silent concurrency?
-
-paternalism is the bits which are not allowed on home directories before qmail
-will deliver to them.  The default, 2, simply means that home directories must
-not be world writable.
-
-The silent concurrency limit is determined by your system headers -- as I
-understand it,  it's a limit of how many fds can be used in a select() set,
-and therefore it limits how many children qmail-lspawn and qmail-rspawn can
-have at any given time.  What it means is that if you try to set
-concurrencylocal or concurrencyremote higher than this, it will silently be
-limited to this limit.
-
- We are running a test now that is just testing the receiving of large
- numbers of email via smtp and storing it local. What I am seeing is the
- email coming it and sitting in the Q. This Q keeps gettnig larger and
- larger. It seems as though there is room on the box as far as IO is
- concerned. So I'd like to up the local concurrency limit.
-
-Is qmail-send even running?  Are the message staying in the todo directory?
-qmail-smtpd (which accepts mail over the network) is completely independent of
-qmail-send, which processes messages in the queue for delivery.
-
-Charles
---

-Charles Cazabon[EMAIL PROTECTED]
-GPL'ed software available at:  http://www.qcc.sk.ca/~charlesc/software/
-Any opinions expressed are just that -- my opinions.

-

Cleaning the queue

[Bob C. Ruddy]

I have a bunch of messages 500+ sitting in my queue for an address that
doesn't exist. Is there a way I can dequeue all messages queued up for
that email address?

Bob

Secondary mail Q

[Bob C. Ruddy]

I'm looking to set up a secondary mail server for when my primary is
unreachable. I don't want qmail to deliver the email though just queue it
up till the primary mail server comes online. I looked through the faq but
did not see anything. Can someone point me in the right direction.

Bob

Re: frowarding root and webmaster email

[Bob C. Ruddy]

On Wed, 29 Sep 1999, Dave Sill wrote:

-If you can't bother to include an exact copy of the error message, why 
-should we waste our time trying to guess what the problem is?

Please don't flame me for something that I didn't ask. If you read my
email there is one question. That question is were do I find documentation
on how to edit /var/qmail/users/assign. The question is very specific and
to the point. So please think before you flame. Thankyou for your answer.

Bob