Le 07/01/2010 20:00, Wietse Venema a écrit :
Patrick Chemla:
Hi,
I am running Postfix 2.5.6 on a Fedora 11 Linux system on a hardware
based Intel I5/750 Quad Core, 8 Gb memory, 160Gb SSD hard disk.
Incoming messages are entering very fast (500 smtp processes declared)
and the active queue is actually of 2 millions messages waiting for
delivery.
The delivery, for all messages should go through a farm of 30 MX servers
from domain localpc2105.com, on load balancing through DNS resolution.
DNS server is of course local. All 30 MX servers are running qmail. All
of them are more than 90% idle. Before I set up my postfix server, email
were sent directly to the qmail servers, and qmail was running at full
CPU. So I am sure that qmail can handle much more faster. I have set up
the postfix server to load balance the load between all the 30 qmail
servers to avoid situation where some were running at full charge and
others were not working.
http://www.postfix.org/DEBUG_README.html#logging
Wietse
Here the logs:
Jan 6 23:12:48 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:19:39 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 461335 of 461335 active queue entries
Jan 6 23:19:39 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:19:39 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:19:39 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:19:39 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:24:51 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 461086 of 461086 active queue entries
Jan 6 23:24:51 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:24:51 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:24:51 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:24:51 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:29:51 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 460872 of 460872 active queue entries
Jan 6 23:29:51 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:29:51 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:29:51 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:29:51 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:35:51 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 460025 of 460025 active queue entries
Jan 6 23:35:51 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:35:51 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:35:51 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:35:51 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:40:51 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 460283 of 460283 active queue entries
Jan 6 23:40:51 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:40:51 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:40:51 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:40:51 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:47:21 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 459714 of 459714 active queue entries
Jan 6 23:47:21 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:47:21 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:47:21 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:47:21 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Jan 6 23:52:21 postfix postfix/qmgr[31260]: warning: mail for
localpc2105.com is using up 459491 of 459491 active queue entries
Jan 6 23:52:21 postfix postfix/qmgr[31260]: warning: you may need to
increase the main.cf smtp_destination_concurrency_limit from 100
Jan 6 23:52:21 postfix postfix/qmgr[31260]: warning: please avoid
flushing the whole queue when you have
Jan 6 23:52:21 postfix postfix/qmgr[31260]: warning: lots of deferred
mail, that is bad for performance
Jan 6 23:52:21 postfix postfix/qmgr[31260]: warning: to turn off these
warnings specify: qmgr_clog_warn_time = 0
Patrick
