Hi,
I have a timeout problem only when I have heavy load in my system. I have two director servers directing to 4 backend servers.
The problem is when my smtp relays tries to deliver mail to my users via lmtp (proxied with director).
In the smtp logs I have:Jun 12 11:41:18 xenon13 postfix/lmtp[4248]: 4433E5D5A0: to=myuser@um.es, relay=pop.um.es[155.54.212.106]:24, delay=31, delays=0.41/0.06/0/30, dsn=4.4.0, status=deferred (host pop.um.es[155.54.212.106] said: 451 4.4.0 Remote server not answering (timeout while waiting for reply to DATA reply) (in reply to end of DATA command))
If I look for this connection in the director servers I have:Jun 12 11:40:39 myotis41 dovecot: lmtp(6595): Connect from 155.54.212.167 Jun 12 11:40:39 myotis41 dovecot: lmtp(6595): Debug: auth input: user=user1 proxy host=155.54.211.163 proxy_refresh=450 Jun 12 11:40:39 myotis41 dovecot: lmtp(6595): Debug: auth input: user=user2 proxy host=155.54.211.163 proxy_refresh=450 .... (more users, a total of 34 recipients) Jun 12 11:40:39 myotis41 dovecot: lmtp(6595): Debug: auth input: user=myuser proxy host=155.54.211.164 proxy_refresh=450 ... Jun 12 11:41:09 myotis41 dovecot: lmtp(6595): Disconnect from 155.54.212.167: Client quit (in reset)
and in one of the final server (the one for the user in question):Jun 12 11:40:38 myotis34 dovecot: lmtp(16824): Connect from 155.54.211.186 Jun 12 11:40:38 myotis34 dovecot: lmtp(16824, <user1>): wJ9BD7YM10 +4QQAAG5O5Qg: sieve: msgid=182283367.48.1339494011054.JavaMail.tomcat@sakai-prod4: stored mail into mailbox 'INBOX' ... Jun 12 11:41:10 myotis34 dovecot: lmtp(16824, <myuser>): wJ9BD7YM10+4QQA AG5O5Qg: sieve: msgid=182283367.48.1339494011054.JavaMail.tomcat@sakai-prod4: stored mail into mailbox 'INBOX' ... Jun 12 11:41:11 myotis34 dovecot: lmtp(16824): Disconnect from 155.54.211.186: Connection closed (in reset)
So the mail seems to be correctly delivered in about 30 seconds. All my postfix timeouts are bigger than this time:
lmtp_connect_timeout = 0s lmtp_connection_cache_time_limit = 2s lmtp_connection_reuse_time_limit = 300s lmtp_data_done_timeout = 600s lmtp_data_init_timeout = 120s lmtp_data_xfer_timeout = 180s lmtp_lhlo_timeout = 300s lmtp_mail_timeout = 300s lmtp_pix_workaround_delay_time = 10s lmtp_pix_workaround_threshold_time = 500s lmtp_quit_timeout = 300s lmtp_rcpt_timeout = 300s lmtp_rset_timeout = 20s lmtp_sasl_auth_cache_time = 90d lmtp_starttls_timeout = 300s lmtp_tls_session_cache_timeout = 3600s lmtp_xforward_timeout = 300s
So... why do I have this error?
As a side effect this mail was delivered twice in the user's mailbox, this is one and the other when postfix retries again.
Any help? Thank you-- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información _o) y las Comunicaciones Aplicadas (ATICA) / \\ http://www.um.es/atica _(___V Tfo: 868887590 Fax: 868888337