Lockers keeps going higher...

[Eric Luyten]

On Wed, July 15, 2009 4:23 pm, Derek Chen-Becker wrote:
> This morning mail delivery via lmtp was slowing to a crawl. When I look
> in the logs, the only unusual thing that I see are the lines:
>
> Jul 13 15:32:13 ssmail lmtpunix[24474]: [ID 366844 local6.info] DBMSG:
> 27 lockers
> Jul 15 00:00:48 ssmail lmtpunix[4411]: [ID 366844 local6.info] DBMSG:
> 148 lockers
> Jul 15 00:10:48 ssmail lmtpunix[22170]: [ID 366844 local6.info] DBMSG:
> 618 lockers
> Jul 15 00:30:49 ssmail lmtpunix[3294]: [ID 366844 local6.info] DBMSG:
> 680 lockers
> Jul 15 08:10:58 ssmail lmtpunix[4002]: [ID 366844 local6.info] DBMSG:
> 1642 lockers
>
>
> It just keeps going up and up. Eventually I restarted master and then
> things went back down to about 20-25 lockers and my postfix delivery queue
> emptied from about 2500 queued messages to 50 in about 3 minutes. Is this
> related, or is this just a red herring?


Derek,


If I were you I'd start by checking the Postfix logs to see whether the
server had to process an abnormally high number of new message deliveries
in a given timeframe.
You may also learn something from the "delay=xxx" part of your Postfix/lmtp
log lines.
Compare to last week's and last month's figures.



Regards,
Eric Luyten, Computing Centre, db3 locker number rarely going above 10