Re: [exim] What's the performance benchmark of Exim4?

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Author: Ian Eiloart
Date:  
To: boyd yang
CC: exim-users, Jasen Betts
Subject: Re: [exim] What's the performance benchmark of Exim4?

On 18 Aug 2013, at 03:54, boyd yang <boyd.yang@???> wrote:

> Hi All,
>
>
> I want to configure exim4 for a lot users ,like 10000 users.
>

We have 30,000 users or so. We've never seen them all connect simultaneously. We do get peaks at lunchtime, when our users are not in lectures. And at 8-9am, when our staff start work. Still, we manage with four servers and 6GB of ram each. SMTP sessions don't last long, and we find a bigger problem has been with IMAP connections, which are made for every open mailbox and are persistent.

> I let exim query from mysql server for user/pass.
>
>
> I use loadrunner to pour 10000 users sending emails at the same time on Exim4, the destination is another Exim4 server configured with blackhole.
>
>
>
> loadrunner======>Exim4======>Exim4(blackhole)
>
> After changing several configs, it stopped at 1000 concurrent users only.
> cat /etc/exim4/conf.d/main/00_local_settings
> smtp_accept_max=0
> smtp_accept_queue_per_connection=0
> queue_run_max=0
> remote_max_parallel=10000
> smtp_connect_backlog=50
>
>
> Maybe the memory is fully used?
>
> sar shows memory is used to 80%, but cpu is very low.
> I get below paniclog:
>
>
>
>
> root@mail:/etc/exim4/conf.d/main# cat /var/log/exim4/paniclog
> 2013-08-18 10:28:27 fork failed for TLS check
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsjH-0003bE-Sv failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsiH-0007TH-R4 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj8-0000Im-3N daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsik-0005do-Fv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiv-0004Ab-Mt daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj4-0001G4-9T daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj9-0002al-Mk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjD-0001FH-B2 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj6-0006ZM-CG daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiy-0005di-Qc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsim-0000tO-Hf daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjB-0004tX-TB daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj3-0002tL-NJ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsir-0001ap-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:32 fork of delivery process from queue runner 26001 failed
>
> 2013-08-18 10:28:32 1VAsip-0004AG-6P == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0004YD-M1 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsil-0005md-50 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjA-0002fN-Hd daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsir-0007nY-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj9-0001Zn-Me daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiz-0008UH-EW daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjD-0002tZ-Ae daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjC-0007bv-2l daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiH-0001bY-RM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj7-0007cT-Gh daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0003rd-TM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsin-0000Jf-7X daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsix-0007bC-LT daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsio-0002Ae-Qk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj6-0005RL-7q daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsis-0006dG-Kn daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj2-0000l1-Ig daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiv-0000KG-Ue daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0000cB-DQ failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:33 1VAsiH-0007TM-RD == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:33 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0006Jw-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0004Or-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0007TJ-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork of delivery process from queue runner 17702 failed
> 
> 2013-08-18 10:28:37 1VAsio-00042o-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00086L-Sn == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007n4-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0008Ne-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0000kn-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsjN-0000PO-22 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsio-0004u3-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0004uG-Sp == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005xR-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005kZ-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00043Q-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007TN-E7 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0002aN-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-00085R-Ef == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005sG-Qq == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007bn-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0004u5-R7 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007bK-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj3-0000Ku-Bd daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj6-0006sN-83 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0006kH-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsit-0006d5-0e daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsiv-0001XP-4Y == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0002aR-4H == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0001CW-4J == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0002lt-3z == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjN-0001wm-Nd failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjN-0006cZ-Nd failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjI-0003rd-E7 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0005kX-E6 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsjD-0000Pc-B0 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj6-0004Ac-7W daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsil-0001h1-RX daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:39 1VAsip-0004KY-Tf == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0005NQ-Tx == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0001Cd-TY == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 fork failed for TLS check
> 2013-08-18 10:28:39 1VAsip-0006da-U9 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-00031g-U9 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0006sk-TK == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0003XL-Tl == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0006QG-Sx == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjI-0007Nd-FN daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsin-0002W6-RP daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjJ-0003w0-8M daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjB-0003Yz-69 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiy-0003u7-Qi daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjC-0005iC-Mu daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjD-0001gq-Mc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjM-00028h-Nv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj3-0007Ka-RA daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0007dY-UK daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiu-0007Nl-NC daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiq-0007yu-Nl daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj8-0002b9-3X daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsit-0004Gj-O9 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjH-0001GI-Cs daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsik-0003Zt-Qz daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj5-0004Or-RR daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjK-0002B2-7L daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 1VAsjL-0000tW-88 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 1VAsjC-0006xV-MM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:44 1VAsiu-0000uX-58 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsiz-0001ML-TQ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsj6-0007RS-Qu daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsjN-0006d5-3u daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsiv-0007z2-Uw == byang@??? R=dnslookup T=remote_smtp defer (-1): fork failed for remote delivery to xxx.xxx: Cannot allocate memory
> root@mail:/etc/exim4/conf.d/main# cat /var/log/exim4/paniclog |more
> 2013-08-18 10:28:27 fork failed for TLS check
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
>  AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
>  AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsjH-0003bE-Sv failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
>  DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsiH-0007TH-R4 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj8-0000Im-3N daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsik-0005do-Fv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiv-0004Ab-Mt daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj4-0001G4-9T daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj9-0002al-Mk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjD-0001FH-B2 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj6-0006ZM-CG daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiy-0005di-Qc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsim-0000tO-Hf daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjB-0004tX-TB daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj3-0002tL-NJ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsir-0001ap-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> root@mail:/etc/exim4/conf.d/main# vi /etc/mysql/my.cnf 
> root@mail:/etc/exim4/conf.d/main# service mysql restart
> mysql stop/waiting
> mysql start/running, process 30500
> root@mail:/etc/exim4/conf.d/main# service exim4 restart
>  * Stopping MTA for restart                                                                   [ OK ] 
>  * Restarting MTA                                                                             [ OK ] 
> ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken
> root@mail:/etc/exim4/conf.d/main# cat /var/log/exim4/paniclog |more
> 2013-08-18 10:28:27 fork failed for TLS check
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
>  AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
>  AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsjH-0003bE-Sv failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
>  DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsiH-0007TH-R4 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj8-0000Im-3N daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsik-0005do-Fv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiv-0004Ab-Mt daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj4-0001G4-9T daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj9-0002al-Mk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjD-0001FH-B2 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj6-0006ZM-CG daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiy-0005di-Qc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsim-0000tO-Hf daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjB-0004tX-TB daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj3-0002tL-NJ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsir-0001ap-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:32 fork of delivery process from queue runner 26001 failed

>
> 2013-08-18 10:28:32 1VAsip-0004AG-6P == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0004YD-M1 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsil-0005md-50 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjA-0002fN-Hd daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsir-0007nY-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj9-0001Zn-Me daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiz-0008UH-EW daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjD-0002tZ-Ae daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjC-0007bv-2l daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiH-0001bY-RM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj7-0007cT-Gh daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0003rd-TM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsin-0000Jf-7X daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsix-0007bC-LT daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsio-0002Ae-Qk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj6-0005RL-7q daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsis-0006dG-Kn daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj2-0000l1-Ig daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiv-0000KG-Ue daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0000cB-DQ failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:33 1VAsiH-0007TM-RD == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:33 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0006Jw-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0004Or-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0007TJ-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork of delivery process from queue runner 17702 failed
>
> 2013-08-18 10:28:37 1VAsio-00042o-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00086L-Sn == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007n4-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0008Ne-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0000kn-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsjN-0000PO-22 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsio-0004u3-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0004uG-Sp == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005xR-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005kZ-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00043Q-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> root@mail:/etc/exim4/conf.d/main# cat /var/log/exim4/paniclog |more
> 2013-08-18 10:28:27 fork failed for TLS check
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsjH-0003bE-Sv failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:31 1VAsiH-0007TH-R4 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj8-0000Im-3N daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsik-0005do-Fv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiv-0004Ab-Mt daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj4-0001G4-9T daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj9-0002al-Mk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjD-0001FH-B2 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj6-0006ZM-CG daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsiy-0005di-Qc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsim-0000tO-Hf daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsjB-0004tX-TB daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsj3-0002tL-NJ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 1VAsir-0001ap-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:31 fork failed for TLS check
> 2013-08-18 10:28:32 fork of delivery process from queue runner 26001 failed
>
> 2013-08-18 10:28:32 1VAsip-0004AG-6P == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0004YD-M1 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsil-0005md-50 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjA-0002fN-Hd daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsir-0007nY-Pv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj9-0001Zn-Me daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiz-0008UH-EW daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjD-0002tZ-Ae daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsjC-0007bv-2l daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiH-0001bY-RM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj7-0007cT-Gh daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsip-0003rd-TM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsin-0000Jf-7X daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsix-0007bC-LT daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsio-0002Ae-Qk daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj6-0005RL-7q daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsis-0006dG-Kn daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsj2-0000l1-Ig daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 1VAsiv-0000KG-Ue daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 1VAsjI-0006bG-DO failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 1VAsjI-0000cB-DQ failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:32 fork failed for TLS check
> 2013-08-18 10:28:33 1VAsiH-0007TM-RD == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:33 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0006Jw-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0004Or-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0007TJ-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork of delivery process from queue runner 17702 failed
>
> 2013-08-18 10:28:37 1VAsio-00042o-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00086L-Sn == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007n4-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0008Ne-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0000kn-Ed == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsjN-0000PO-22 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsio-0004u3-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0004uG-Sp == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005xR-Qu == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005kZ-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-00043Q-R5 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007TN-E7 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0002aN-Ri == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-00085R-Ef == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0005sG-Qq == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007bn-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0004u5-R7 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsio-0007bK-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj3-0000Ku-Bd daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj6-0006sN-83 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsio-0006kH-Qk == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsit-0006d5-0e daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsiv-0001XP-4Y == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0002aR-4H == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0001CW-4J == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0002lt-3z == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 failed to expand "${lookup mysql{SELECT fqdn AS domain FROM domains WHERE fqdn='$
> {quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: lookup of "SELECT fqdn
> AS domain FROM domains WHERE fqdn='xxx.xxx' AND type='local' AND active=1" gave DEFER: MYSQL co
> nnection failed: Can't create a new thread (errno 11); if you are not out of available memory, you ca
> n consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjN-0001wm-Nd failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjN-0006cZ-Nd failed to expand "${lookup mysql{SELECT fqdn AS domain FROM doma
> ins WHERE fqdn='${quote_mysql:$domain}' AND type='local' AND active=1}}" while checking a list: looku
> p of "SELECT fqdn AS domain FROM domains WHERE fqdn='cwindow.net' AND type='local' AND active=1" gave
> DEFER: MYSQL connection failed: Can't create a new thread (errno 11); if you are not out of availabl
> e memory, you can consult the manual for a possible OS-dependent bug
> 2013-08-18 10:28:37 1VAsjI-0003rd-E7 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsiv-0005kX-E6 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 1VAsjD-0000Pc-B0 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsj6-0004Ac-7W daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 1VAsil-0001h1-RX daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:37 fork failed for TLS check
> 2013-08-18 10:28:39 1VAsip-0004KY-Tf == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0005NQ-Tx == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0001Cd-TY == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 fork failed for TLS check
> 2013-08-18 10:28:39 1VAsip-0006da-U9 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-00031g-U9 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0006sk-TK == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0003XL-Tl == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0006QG-Sx == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjI-0007Nd-FN daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsin-0002W6-RP daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjJ-0003w0-8M daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjB-0003Yz-69 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiy-0003u7-Qi daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjC-0005iC-Mu daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjD-0001gq-Mc daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjM-00028h-Nv daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj3-0007Ka-RA daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsip-0007dY-UK daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiu-0007Nl-NC daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsiq-0007yu-Nl daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj8-0002b9-3X daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsit-0004Gj-O9 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjH-0001GI-Cs daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsik-0003Zt-Qz daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsj5-0004Or-RR daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:39 1VAsjK-0002B2-7L daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 1VAsjL-0000tW-88 daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 1VAsjC-0006xV-MM daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:43 fork failed for TLS check
> 2013-08-18 10:28:44 1VAsiu-0000uX-58 == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsiz-0001ML-TQ daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsj6-0007RS-Qu daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsjN-0006d5-3u daemon: delivery process fork failed: Cannot allocate memory
> 2013-08-18 10:28:44 1VAsiv-0007z2-Uw == byang@??? R=dnslookup T=remote_smtp defer (-1): fork
> failed for remote delivery to xxx.xxx: Cannot allocate memory
>
>
>
> On Sat, Aug 17, 2013 at 8:24 PM, Jasen Betts <jasen@???> wrote:
> On 2013-08-16, boyd yang <boyd.yang@???> wrote:
> > Hi Ian,
> >
> > I just see that exim can handle only 1000 concurrent connections(for
> > sending out emails via SMTP), more will get error with loadrunner.
>
> ??? it can only handle a singe connection, it forks a new process for
> each new connection. the maximum number of processes depends on your
> server but having more than 200 outbound connections from a single IP
> address is usually counterproductive IME.
>
> > Exim does not utilize full of the cpu/memory of the server.
>
> exim sends email, email is transported by the internet, the internet
> is really really slow.
>
>
> > I have this additional configuration:
> > root@mail:/etc/exim4/conf.d/main# cat 00_local_settings
> > smtp_accept_max=1000000
> > smtp_accept_queue_per_connection=0
> > queue_run_max=10000
> > remote_max_parallel=1000
> > smtp_connect_backlog=50
> >
> > No error found in the log too.
> >
> > Any configurations can let Exim4 use all the resources like cpu/memory?
> > Thanks！
>
> look at your testing procedures.
> perhaps load 100 emails with 1000 revipients spreat across 100
> desination MXs per email into the queue and then spawn 50 queue
> runners.
>
>
> --
> ⚂⚃ 100% natural
>
> --
> ## List details at https://lists.exim.org/mailman/listinfo/exim-users
> ## Exim details at http://www.exim.org/
> ## Please use the Wiki with this list - http://wiki.exim.org/
>

--
Ian Eiloart
Postmaster, University of Sussex
+44 (0) 1273 87-3148


This message was posted to the following mailing lists:
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