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Hi, In my unified murder configuration (cyrus imapd 2.3.7) with 2 imap servers and 1 mupdate server, I have a unwanted behaviour when LMTP tries to deliver mail for a mailbox that is not available. Lets says I have a user, "user2", whoses mailboxes are on "imap2". Scenario 1 : ====== - mupdate UP - imap1 UP - imap2 UP
Scenario 2 : ======= - mupdate UP - imap1 DOWN, then UP for less than 10 minutes - imap2 DOWN Now I shut down both "imap1""imap2", and restart ONLY imap1. The mupdate server is always running and has never been shut down.
Here are log transcripts: - On the LMTP server (Postfix 2.0.x): Sep 14 11:50:29 galia postfix/lmtp[24424]: 80E8473F35: to=<user2@xxxxxxxxx>, relay=imap1[10.12.17.44], delay=1154, status=bounced (host imap1[10.12.17.44] said: 550-Mailbox unknown. Either there is no mailbox associated with this 550-name or you do not have authorization to see it. 550 5.1.1 User unknown (in reply to RCPT TO command)) - On "imap1": Sep 14 11:50:28 imap1 cyrus/lmtp[26411]: connection from galia.srv.in.karavel.com [10.12.17.31] Sep 14 11:50:28 imap1 cyrus/master[26548]: about to exec /usr/lib/cyrus/bin/lmtpd Sep 14 11:50:28 imap1 cyrus/lmtp[26411]: login: galia.srv.in.karavel.com [10.12.17.31] postman DIGEST-MD5 User logged in Sep 14 11:50:28 imap1 cyrus/lmtp[26548]: executed Sep 14 11:50:28 imap1 cyrus/lmtp[26411]: kick_mupdate: can't connect to target: Connection refused Sep 14 11:50:28 imap1 cyrus/lmtp[26411]: verify_user(user.user2) failed: Mailbox does not exist Sep 14 11:53:09 imap1 cyrus/master[26353]: process 26411 exited, status 0 Scenario 3 : ====== - mupdate UP - imap1 UP for more than 10 minutes - imap2 DOWN This time, if I wait *a few minutes* before resending a mail to "user2" via LMTP on "imap1". I do get a soft error, as expected. ==> Incoming Mail deferred. Here are the new log transcripts: - On the LMTP server: Sep 14 11:59:54 galia postfix/lmtp[25497]: CDB3573D48: to=<user2@xxxxxxxx>, relay=imap1[10.12.17.44], delay=0, status=deferred (host imap1[10.12.17.44] said: 451 4.4.3 Remote server unavailable (in reply to end of DATA command)) - On the "imap1" server: Sep 14 11:59:53 imap1 cyrus/master[26560]: about to exec /usr/lib/cyrus/bin/lmtpd Sep 14 11:59:53 imap1 cyrus/lmtp[26530]: connection from galia.srv.in.karavel.com [10.12.17.31] Sep 14 11:59:53 imap1 cyrus/lmtp[26560]: executed Sep 14 11:59:53 imap1 cyrus/lmtp[26530]: login: galia.srv.in.karavel.com [10.12.17.31] postman DIGEST-MD5 User logged in Sep 14 11:59:53 imap1 cyrus/lmtp[26530]: connect(imap2) failed: Connection refused Question: ====== Can anybody tell me what went wrong and why "imap1" wasn't aware of the existence of mailboxes on "imap2" just after startup? I have another question, related to imapd startup : - I have 13000 mailboxes on "imap1" and 14000 mailboxes on "imap2". - When I start "imap1", it kicks "ctl_mboxlist -m" before spawning other processes. This mailbox synchronisation process is very slow and takes at least 4 minutes. Why is this "ctl_mbox_list -m" so slow? Is this related to the fact that even when "imap1" is up and running, it still isn't fully operational before at least 10 minutes? Here is some info on my configuration. I can provide more info if needed. - All 3 servers running Debian stable+testing + home compiled Cyrus Imapd 2.3.7 - They all have bi-XEON with at least 3 Gb of RAM - Server load is very low, as this is a test environnment - 13000 mailboxes on imap1, 14000 on imap2 - 1200 total users, stored in LDAP - Database formats: ANNOTATION skiplist DUPLICATE berkeley-nosync MBOX skiplist PTS berkeley QUOTA quotalegacy SEEN skiplist SUBS flat TLS berkeley-nosync Regards -- Farzad FARID <ffarid@xxxxxxxxxxxxxxxxxxxx> Architecte Open Source / Pragmatic Source http://www.pragmatic-source.com/ |
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