On Monday, August 25, 2003, at 02:28 pm, Andrew Falgout wrote:
The error log is at 0 bytes. I have not overridden the Defaults.py whichYou will be using SMTP to the local MTA (which you say is Sendmail) if the following MM config variables are set as follows in either mm_cfg.py or the Defaults.py file. The following are th standard MM 2.0.13 default values:
shows Defaults.py:MTA_ALIASES_STYLE = 'sendmail'. So I assume that means
that sendmail is the MTA.
DELIVERY_MODULE = 'SMTPDirect' SMTPHOST = 'localhost'
Also are the following default values still in place:
SMTP_MAX_RCPTS = 500 MAX_DELIVERY_THREADS = 0
I am going to assume that you had not made the edit to $prefix/Mailman/Handlers/SMTPDirect.py I suggested in one of my response and that these log entries are the regular ones?
Aug 25 08:08:31 2003 (27798) smtp for 2 recips, completed in 1.045 seconds
Aug 25 08:08:31 2003 (27798) smtp for 2 recips, completed in 1.149 seconds
Aug 25 08:12:47 2003 (27798) smtp for 1 recips, completed in 0.208 seconds
Aug 25 08:12:47 2003 (27798) smtp for 1 recips, completed in 0.241 seconds
Aug 25 08:14:25 2003 (31184) smtp for 1 recips, completed in 0.701 seconds
Aug 25 08:14:25 2003 (31184) smtp for 1 recips, completed in 0.716 seconds
Aug 25 08:17:21 2003 (31184) smtp for 1 recips, completed in 0.167 seconds
Aug 25 08:17:21 2003 (31184) smtp for 1 recips, completed in 0.179 seconds
Aug 25 08:19:34 2003 (31184) smtp for 1 recips, completed in 3.962 seconds
Aug 25 08:19:34 2003 (31184) smtp for 1 recips, completed in 4.234 seconds
This is just a few of the lines in my /var/log/mailman/smtp file. There are
a few bounces from time to time, but not on great frequency. I did send an
email to a test list, and attempted to time when I would see my email
address in the post log, but after 10 minutes I have not seen it. This
really confuses me, because the mail system on this server delivers mail
directly to a mailbox in seconds. Why the delay?
Bear in mind that the number in brackets in these log entries - (27798) for instance - is the process id of the qurnner handling the message and the same qrunner is handling multiple messages.
The smtp log entries are interesting if you have a large backlog of messages in the qfiles directory because:
1. only a few recipients are being delivered for each log entry. Are your mailing list that sparely populated for subscribers? Do these smtp log entries tie in with post entries for lists with few members and /var/log/mail entries for outgoing mail through the MTA?
2. quite long periods - 2, 3, 4 minutes in the sample log entries you give - elapse between log entries. But the log entries are for the same process so it has been continuing to run during these pregnant pauses. But what is it doing?
Some thoughts. Mailman's qrunner can get slow if it is:
a. archiving and
b. the messages for a list are large messages and/or
c. the number of messages in the current archive of a list is large.
On the other hand, the pregnant pauses could be because MM is encountering long delays when opening SMTP connections to the MTA.
What sort of shape are the traffic/lists that MM is handling.
If you can catch the qrunner at it then maybe strace will give you some idea of what is doing: waiting on a socket open to the MTA maybe.
Another possibility is if by some means a bunch of lists have got orphaned locks over them so that the qrunner is spinning its wheels trying to find a list it can operate on. Does anything indicative of this show up in the $prefix/locks directory.
----- Original Message ----- From: "Richard Barrett" <[EMAIL PROTECTED]> To: "Andrew Falgout" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Sunday, August 24, 2003 3:36 PM Subject: Re: [Mailman-Users] Mailman / Sendmail horribly slow performance..suggestions please?!?
On Sunday, August 24, 2003, at 12:51 am, Andrew Falgout wrote:
I'm currently running mailman-2.0.13-1 eith sendmail-8.11.6-25.72.Are you using the local sendmail instance as the outgoing SMTP server?
Posts
are processed very fast, but delivery is more than slow. It takes 1-2
minutes per post to delivery mail. Evaluating what is going on in the
queue is a little more than cumbersome. Over the course of 3-4 days
mails
have been piling up in the qfiles directory to the tune of 4000 mails
and
waiting. There are mails 3 days old waiting to go out. I'm looking
for
ways to evaluate what is in the queue, why it's in the queue, and how
to
tell qrunner to report more information on what it's thinking. Like
perhaps the msgid of the email it's trying to process at this time.
Regardless, what do the Mailman post, smtp and smtp-failure logs show about mail being handled by the system. How does this tie in with the MTA's mail log.
If your outgoing mail is being handled by the local sendmail MTA then I
would normally expect Mailman to handoff to the MTA without much delay.
If MM is having problems handing off to sendmail then you might find
some evidence of this in the smtp-failure log.-- Thank You,
Andrew
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