Zimbra Server very slow - Too many SMTP connections

[phoenix]

smtpd_client_connection_rate_limit = 120

takes no effect :-(

I assume you restarted Postfix?

[pc-nico]

yes.... service zimbra restart... complete... no effect....


Here a snapp for mail.warn (syslog)

: Name or service not known
Jun  5 12:28:28 mail postfix/smtpd[12122]: warning: 92.245.50.83: hostname h92-245-50-83.bashtel.ru verification failed: Name or service not known
Jun  5 12:28:31 mail postfix/smtpd[29828]: warning: 193.124.19.10: hostname du-19-10.kmtn.ru verification failed: Name or service not known
Jun  5 12:28:39 mail postfix/smtpd[7643]: warning: 85.187.21.26: hostname 187-21-26.metrolan.biz verification failed: Name or service not known
Jun  5 12:28:50 mail postfix/smtpd[5664]: warning: 79.164.75.179: hostname host-79-164-75-179.qwerty.ru verification failed: Name or service not known
Jun  5 12:29:04 mail postfix/smtpd[29553]: warning: 194.149.3.110: address not listed for hostname mail.poluskft.hu
Jun  5 12:29:05 mail postfix/smtpd[29548]: warning: 195.245.121.58: hostname host-1.opal.imc-ua.net verification failed: Name or service not known
Jun  5 12:29:25 mail postfix/smtpd[12799]: warning: 203.197.115.79: hostname static115-79.staticcal.vsnl.net.in verification failed: Name or service not known
Jun  5 12:29:26 mail postfix/smtpd[12298]: warning: 88.242.44.170: hostname dsl88.242-11434.ttnet.net.tr verification failed: Name or service not known
Jun  5 12:29:36 mail postfix/smtpd[12687]: warning: 125.163.224.214: hostname 214.subnet125-163-224.speedy.telkom.net.id verification failed: Name or service not known
Jun  5 12:29:46 mail postfix/smtpd[5664]: warning: 79.164.75.179: hostname host-79-164-75-179.qwerty.ru verification failed: Name or service not known
Jun  5 12:30:11 mail postfix/smtpd[7862]: warning: 194.149.3.110: address not listed for hostname mail.poluskft.hu
Jun  5 12:30:46 mail postfix/smtpd[31558]: warning: 81.19.5.178: hostname ip81-19-5-178.netdatacomm.cz verification failed: Name or service not known
Jun  5 12:30:58 mail postfix/smtpd[29698]: warning: 92.245.50.83: hostname h92-245-50-83.bashtel.ru verification failed: Name or service not known
Jun  5 12:31:05 mail postfix/smtpd[7643]: warning: 193.124.19.10: hostname du-19-10.kmtn.ru verification failed: Name or service not known
Jun  5 12:31:16 mail postfix/smtpd[12674]: warning: 222.123.228.9: hostname adsl-pool-222.123.228-9.tttmaxnet.com verification failed: Name or service not known
Jun  5 12:31:23 mail postfix/smtpd[29553]: warning: 122.162.94.17: hostname ABTS-NCR-Dynamic-017.94.162.122.airtelbroadband.in verification failed: Name or service not known
Jun  5 12:31:30 mail postfix/smtpd[7637]: warning: 85.113.10.26: hostname 85-113-10-26.static.ktnet.kg verification failed: Name or service not known
Jun  5 12:31:35 mail postfix/smtpd[30774]: warning: 213.172.85.50: address not listed for hostname mail.azpromo.org
Jun  5 12:32:01 mail postfix/smtpd[12685]: warning: 92.245.50.83: hostname h92-245-50-83.bashtel.ru verification failed: Name or service not known
Jun  5 12:32:52 mail postfix/smtpd[7644]: warning: 190.26.163.27: hostname adsl190-26163027.dyn.etb.net.co verification failed: Name or service not known
Jun  5 12:33:01 mail postfix/smtpd[12360]: warning: 81.213.101.31: hostname dsl.dynamic8121310131.ttnet.net.tr verification failed: Name or service not known
Jun  5 12:33:19 mail postfix/smtpd[29500]: warning: 122.162.94.17: hostname ABTS-NCR-Dynamic-017.94.162.122.airtelbroadband.in verification failed: Name or service not known
Jun  5 12:33:21 mail postfix/smtpd[5664]: warning: 92.245.50.83: hostname h92-245-50-83.bashtel.ru verification failed: Name or service not known
Jun  5 12:33:32 mail postfix/smtpd[29675]: warning: 92.113.221.224: hostname 224-221-113-92.pool.ukrtel.net verification failed: Name or service not known
Jun  5 12:33:45 mail postfix/smtpd[8479]: warning: 83.69.116.152: hostname static-host.152-116-69-83.tatintel.com verification failed: Name or service not known
Jun  5 12:34:03 mail postfix/smtpd[29554]: warning: 85.113.10.26: hostname 85-113-10-26.static.ktnet.kg.10.113.85.in-addr.arpa verification failed: Name or service not known
Jun  5 12:34:28 mail postfix/smtpd[12360]: warning: 85.25.129.195: address not listed for hostname www.gsmegypt.mobi
Jun  5 12:34:32 mail postfix/smtpd[7863]: warning: 125.163.224.214: hostname 214.subnet125-163-224.speedy.telkom.net.id verification failed: Name or service not known

its always alot of message like before

[phoenix]

There's a nice utility for monitoring the server, it's called zmstat-chart and you can find details on this wiki page.

For instance, this command will produce a nice set of charts for a specific day:

zmstat-chart -s /opt/zimbra/zmstat/2008-06-04 -d /tmp/charts

Have a look at that utility and see what it shows about your server performance for tha past few days since your problem started.

I assume you are only running Zimbra on this server? if not, what else is running?

[pc-nico]

on the server a httpd is running... but is very idle....


hat this chart no problems:
2008-05-22

her the report from yesterday
2008-06-04

[pc-nico]

Additional:
I am logging *.* over syslog to a file which is daily rotate.. i found out
that since the last zimbra update on 28.05.08 the log file get most bigger (e.g. from 27 Mb to 170MB)