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Re: [Dovecot] 2.0.3 Bug - hanging issue
by Alan Brown 26 Oct '10

26 Oct '10

> From: Timo Sirainen <tss(a)iki.fi> > Subject: Re: [Dovecot] 2.0.3 Bug - hanging issue > > On 25.10.2010, at 14.13, Alan Brown wrote: > >> > Oct 25 12:36:34 msslat dovecot: imap(keh2): Error: user keh2: Initialization failed: Namespace '#mbox/': mkdir(/stage/mail/imap1/keh2/mail) failed: Permission denied (euid=2291(keh2) egid=101(luci) missing +w perm: /stage/mail/imap1, euid is not dir owner) >> > >> > Because the parent directory was rwxr-xr-x root.root > Right.. > >> > The problem is that for some reason dovecot then wedged and a lot of other stuff piled up behind it, causing people to complain their mail wasn't coming through. Load average climbed to over 100. >> > >> > Creating the user directories freed things up... > So the problem is that if there's a misconfiguration, load goes up? I don't really know if there's much to do about this. I guess it could wait a second or so before disconnecting client to avoid it reconnecting back too fast.. > The client wasn't reconnecting as far as I can tell. It looked to me like the server process wedged after this error - we only got the error message logged once. The problem is that after it occurred no new clients could complete connections, but existing clients worked ok. Incoming connections were accepted, but then nothing would happen. As far as I can tell the parent would fork new child processes but they couldn't complete initialisation. Mail clients simply complained of a timeout during connection. This was affecting all users. With regard to error disconnections - yes a delay is a good idea.

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[Dovecot] Dovecot Linux 2 Dovecot OSX migration
by "Robert M. Münch" 26 Oct '10

26 Oct '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA384 Hi, we are moving all our internal IT to an OSX server. Having used Dovecot on Linux for a couple of years now I want to transfer all IMAP folders so that users won't see a difference. Are there are any tips & tricks how to migrate Dovecot to Dovecot? I hope this is a simple thing to do. - -- Robert M. Münch Mobil: +49 177 245 2802 http://www.saphirion.com Smarter|Better|Faster Saphirion Ltd & Co KG Schumannstr. 3 D - 76185 Karlsruhe Tel : +49 721 5978501 Fax: +49 721 5978502 Registergericht: Amtsgericht Mannheim HRA 105339 Alleinige persönlich haftende Gesellschafterin: Quiyo Verwaltungs Limited Registered Office: 76 High Street, Newport Pagnell, Milton Keynes, MK 16 8AQ, Great Britain. Company Number: 5705018 Vertretungsberechtigter Geschäftsführer: Robert M. Münch Umsatzsteuer-Identifikationsnummer gemäß § 27 a Umsatzsteuergesetz: DE 24939452. Inhaltlich Verantwortlicher gemäß § 10 Absatz 3 MDStV: Robert M. Münch (Anschrift wie oben) -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 10.0.2 (Build 13) Charset: iso-8859-1 wsBVAwUBTMWpCHSQa/BbHGLwAQlrXAgAnsZxkz3V0Q0wqTT8oEV2U/xOAhxkK+f2 j/+RPzz9dddN8PWB/SM0fbRKZL1lHwl+H0OXksjIWRiLDruVMwscybS73W9a+9Lc L1CJZ+hSPKsDIPuK6XDxuxfz80q795dtdqcJq7eVrXuWpDx/mZPYiHYjPkaEEism TmQ1Kj8tT45cptJdp4n8P5knigdyaNXnAVy0+Lv3xXrdZA7h1kjkMGw059lV0cFp LhWjcY6cQj2niqT1FjXKe+diFjzJoABLPb12ZiUwQ/+6gZR/vgCjNOte+JSWp/Wt m0wk2MwmtmF9oQYEka255v5bHlgOpCx6UySyYQFS8ahSugdpMKgI/g== =ZS+i -----END PGP SIGNATURE-----

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[Dovecot] delivering mail to public mbox with permission 660?
by RParr 26 Oct '10

26 Oct '10

I am migrating a couple old RH servers running sendmail and UW-IMAP to a new Ubuntu 10.04 servers running Postfix and Dovecot. I have everything working reasonably well except that the permissions of newly created mbox mail folders is always 600. I have reviewed the archives, google, and double checked everything is as suggested in the Dovecot Wiki / SharedMailboxes / Permissions. I am running Ubuntu 10.04 packages postfix 2.7.0-1, dovecot-common, dovecot-imapd, dovecot-pop3d, and dovecot-postfix (all version 1.2.9-1ubuntu6.1). I plan to install amavisd-new, et.al. for spam filtering and anti-virus but have held off until I get Postfix and Dovecot working 100%. I have configured Postfix and Dovecot to use mbox mailboxes. I chose mbox becaus I have a LOT of shared mbox folders to migrate and decided it best to first migrate to Postfix/Dovecot mbox and later worry about migrating to maildir (as suggested on the Dovecot wiki mailbox format page). I have configured private (also as default) and public namespaces with the public mailboxes stored in /var/mail/public. /var/mail/public has rwxrws--- and is group tarts (the shared "company" group for this server). Initially I had procmail configured via the mailbox_command. Initial test mail sent to user tarts triggered creation of /var/mail/tarts with 660 permissions as expected. I then changed the configuration to use deliver via the mailbox_command. I did this because procmail appears to be unmaintained and to benefit from deliver's support for indexing at time of delivery and seive. I then added user testuser with primary group testuser and supplemental group tarts. I made sure testuser's home directory and mail sub dir had rwxrws--- permissions. I sent test mail to user testuser and had both user tarts and user testuser create some subfolders in public (via Thunderbird accounts) THE PROBLEM is that mbox folders that hold messages are created with permssion 600. My understanding, from the Dovecot wiki and other docs/postings is that the folders should be 660 given the /var/mail permssions of rwxrwsrwt and ~/mail permssions of rwxrws--- MY QUESTION is how do I correct the configuration and/or directory permissions so that mbox folders and .imap indices (especially public/ ones) are created with 660 permissions thus allowing users who belong to a common group (eg tarts) to access the public mailboxes? It appears all Dovecot configuration options to establish directory/box perms or mask, such as umask, have been deprectated and no longer work. The primary option appears to be using the permissions yet that is not working for me here. ----------------------------------- /home/: drwxrws--- 4 tarts tarts 4096 2010-10-19 13:59 tarts/ /home/tarts: drwxrws--- 4 tarts tarts 4096 2010-10-19 13:50 mail/ ----------------------------------- /d/home/: drwxrws--- 4 testuser testuser 4096 2010-10-19 13:59 testuser/ /d/home/testuser: drwxrws--- 4 testuser testuser 4096 2010-10-19 13:59 mail/ /d/home/testuser/mail: total 20 drwxrws--- 4 testuser testuser 4096 2010-10-19 13:59 ./ drwxrws--- 3 testuser testuser 4096 2010-10-19 13:44 ../ drwxrws--- 3 testuser testuser 4096 2010-10-19 13:45 .imap/ -rw-rw---- 1 testuser testuser 36 2010-10-19 13:59 .subscriptions -rw------- 1 testuser testuser 0 2010-10-19 13:50 Trash drwxrws--- 2 testuser testuser 4096 2010-10-19 13:54 test1/ -rw------- 1 testuser testuser 0 2010-10-19 13:54 test2 /d/home/testuser/mail/.imap: total 12 drwxrws--- 3 testuser testuser 4096 2010-10-19 13:45 ./ drwxrws--- 4 testuser testuser 4096 2010-10-19 13:59 ../ drwx--S--- 2 testuser testuser 4096 2010-10-19 13:50 INBOX/ /d/home/testuser/mail/.imap/INBOX: total 24 drwx--S--- 2 testuser testuser 4096 2010-10-19 13:50 ./ drwxrws--- 3 testuser testuser 4096 2010-10-19 13:45 ../ -rw------- 1 testuser testuser 16384 2010-10-19 14:00 dovecot.index.cache -rw------- 1 testuser testuser 864 2010-10-19 14:00 dovecot.index.log /d/home/testuser/mail/test1: total 8 drwxrws--- 2 testuser testuser 4096 2010-10-19 13:54 ./ drwxrws--- 4 testuser testuser 4096 2010-10-19 13:59 ../ -rw------- 1 testuser testuser 0 2010-10-19 13:54 sub1 ----------------------------------- /var: drwsrwsrwt 3 root mail 4096 2010-10-18 10:23 mail/ /var/mail: total 896 drwsrwsrwt 3 root mail 4096 2010-10-19 13:51 ./ drwxr-xr-x 16 root root 4096 2010-03-05 13:57 ../ -rw-rw---- 1 nobody mail 1386 2010-10-12 16:54 nobody drwsrws--- 5 root tarts 4096 2010-10-19 13:51 public/ -rw-rw---- 1 tarts mail 894107 2010-10-19 08:59 tarts -rw------- 1 testuser mail 632 2010-10-19 13:51 testuser /var/mail/public: total 24 drwsrws--- 5 root tarts 4096 2010-10-19 13:51 ./ drwsrwsrwt 3 root mail 4096 2010-10-19 13:51 ../ drwxrws--- 3 tarts tarts 4096 2010-10-19 13:51 .imap/ drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 test1/ drwxrws--- 2 tarts tarts 4096 2010-10-16 15:01 test2/ -rw------- 1 testuser tarts 633 2010-10-19 13:51 test3 /var/mail/public/.imap: total 12 drwxrws--- 3 tarts tarts 4096 2010-10-19 13:51 ./ drwsrws--- 5 root tarts 4096 2010-10-19 13:51 ../ drwx--S--- 2 testuser tarts 4096 2010-10-19 13:51 test3/ /var/mail/public/.imap/test3: total 28 drwx--S--- 2 testuser tarts 4096 2010-10-19 13:51 ./ drwxrws--- 3 tarts tarts 4096 2010-10-19 13:51 ../ -rw------- 1 testuser tarts 16384 2010-10-19 13:51 dovecot.index.cache -rw------- 1 testuser tarts 628 2010-10-19 13:51 dovecot.index.log /var/mail/public/test1: total 16 drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 ./ drwsrws--- 5 root tarts 4096 2010-10-19 13:51 ../ drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 .imap/ -rw------- 1 tarts tarts 614 2010-10-16 15:02 sub1 -rw------- 1 tarts tarts 0 2010-10-16 15:01 sub2 /var/mail/public/test1/.imap: total 12 drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 ./ drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 ../ drwx--S--- 2 tarts tarts 4096 2010-10-16 15:02 sub1/ /var/mail/public/test1/.imap/sub1: total 12 drwx--S--- 2 tarts tarts 4096 2010-10-16 15:02 ./ drwxrws--- 3 tarts tarts 4096 2010-10-16 15:02 ../ -rw------- 1 tarts tarts 408 2010-10-16 15:02 dovecot.index.log /var/mail/public/test2: total 8 drwxrws--- 2 tarts tarts 4096 2010-10-16 15:01 ./ drwsrws--- 5 root tarts 4096 2010-10-19 13:51 ../ Any help would be greatly appreciated. Thanks R.Parr, RHCE, Temporal Arts, Portland, U.S.A.

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[Dovecot] v2.0.6 released
by Timo Sirainen 26 Oct '10

26 Oct '10

http://dovecot.org/releases/2.0/dovecot-2.0.6.tar.gz http://dovecot.org/releases/2.0/dovecot-2.0.6.tar.gz.sig * Pre-login CAPABILITY includes IDLE again. Mainly to make Blackberry servers happy. * auth: auth_cache_negative_ttl default was 0 in earlier v2.0.x, but it was supposed to be 1 hour as in v1.x. Changed it back to 1h. If you want it disabled, make sure doveconf shows it as 0. + dbox: Added support for saving mail attachments to external files, with also support for single instance storage. This feature hasn't had much testing yet, so be careful with it. + doveadm: Added import command for importing mails from other storages. + Reduced NFS I/O operations for index file accesses + dbox, Maildir: When copying messages, copy also already cached fields from dovecot.index.cache + mdbox: Added mdbox_preallocate_space setting (Linux+ext3/XFS only) - Maildir: LDA/LMTP assert-crashed sometimes when saving a mail. - Fixed leaking fds when writing to dovecot.mailbox.log. - Fixed rare dovecot.index.cache corruption - IMAP: SEARCH YOUNGER/OLDER wasn't working correctly

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[Dovecot] 2.0.3 Bug - hanging issue
by Alan Brown 25 Oct '10

25 Oct '10

We had this this morning: Oct 25 12:36:34 msslat dovecot: imap(keh2): Error: user keh2: Initialization failed: Namespace '#mbox/': mkdir(/stage/mail/imap1/keh2/mail) failed: Permission denied (euid=2291(keh2) egid=101(luci) missing +w perm: /stage/mail/imap1, euid is not dir owner) Oct 25 12:36:34 msslat dovecot: imap(keh2): Error: Invalid user settings. Refer to server log for more information. Oct 25 12:36:35 msslat dovecot: imap-login: Login: user=<keh2>, method=PLAIN, rip=128.40.73.160, lip=128.40.73.13, mpid=26736 Oct 25 12:36:35 msslat dovecot: imap(keh2): Error: user keh2: Initialization failed: Namespace '#mbox/': mkdir(/stage/mail/imap1/keh2/mail) failed: Permission denied (euid=2291(keh2) egid=101(luci) missing +w perm: /stage/mail/imap1, euid is not dir owner) Oct 25 12:36:35 msslat dovecot: imap(keh2): Error: Invalid user settings. Refer to server log for more information. Because the parent directory was rwxr-xr-x root.root The problem is that for some reason dovecot then wedged and a lot of other stuff piled up behind it, causing people to complain their mail wasn't coming through. Load average climbed to over 100. Creating the user directories freed things up...

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Re: [Dovecot] 2.0.3 Bug - hanging issue
by Alan Brown 25 Oct '10

25 Oct '10

> From: Charles Marcus <CMarcus(a)Media-Brokers.com> > On 2010-10-25 9:13 AM, Alan Brown wrote: > > > We had this this morning: > 2.0 is still getting a good number of bug fixes so if you're going to > use it you should be prepared to upgrade to the latest and see if the > problem is already fixed before reporting a possible bug. I have been, but I've seen no similar reports and it may still be in 2.0.6. I will update to that version during a planned maintenance window tomorrow.

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[Dovecot] virtual plugin broken ? dovecot 2.0.6
by Robert Schetterer 25 Oct '10

25 Oct '10

Hi Timo, looks like virtual plugin is broken now with my setup dovecot 2.0.6 cant say to which version it stopped working ( didnt tested it trough all ) but has worked i see nothing special in log why it stopped working it should show unseen mail i.e in folder Junk too with pop3 clients, but only shows new inbox mails after all i am confused what using better pop3_uidl_format = %08Xu%08Xv ( most compatible ) or pop3_uidl_format = %g ( better with virtual ) pop3_reuse_xuidl = ? what ist the most compatible/konservative setting with maildir on a cluster filesystem pop3_save_uidl = ? what ist the most compatible/konservative setting with maildir on a cluster filesystem --log Oct 25 17:24:44 mail02 dovecot: pop3: Debug: Added userdb setting: plugin/namespace_2_inbox=yes /etc/dovecot/.INBOX/dovecot-virtual RealMails/* RealMails/INBOX RealMails/INBOX/* -RealMails/Trash -RealMails/Trash/* -RealMails/Sent -RealMails/Sent/* -RealMails/Templates -RealMails/Templates/* -RealMails/Drafts -RealMails/Drafts/* -RealMails/Archives -RealMails/Archives/* unseen --sql CASE '%s' WHEN 'pop3' THEN NULL ELSE 'yes' END AS namespace_1_inbox, \ CASE '%s' WHEN 'pop3' THEN 'yes' ELSE NULL END AS namespace_2_inbox, \ ---dovecot -n # 2.0.6 (aaca506ea33b): /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-25-server x86_64 Ubuntu 10.04.1 LTS auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb auth_verbose = yes auth_verbose_passwords = plain auth_worker_max_count = 300 dict { acl = mysql:/etc/dovecot/dovecot-dict-acl-sql.conf.ext expire = mysql:/etc/dovecot/dovecot-dict-expire-sql.conf.ext quotadict = mysql:/etc/dovecot/dovecot-dict-quota-sql.conf.ext } disable_plaintext_auth = no first_valid_gid = 1001 first_valid_uid = 1001 hostname = last_valid_gid = 1001 last_valid_uid = 1001 listen = * login_greeting = imap, pop ready mail_access_groups = vmail mail_debug = yes mail_fsync = always mail_gid = 1001 mail_location = maildir:~/ mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = expire virtual fts fts_squat mail_log autocreate notify acl mail_privileged_group = vmail mail_uid = 1001 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date mmap_disable = yes namespace { hidden = no inbox = yes list = yes location = prefix = separator = / subscriptions = yes type = private } namespace { hidden = yes list = no location = virtual:/etc/dovecot/virtual:LAYOUT=maildir++ prefix = virtual/ separator = / subscriptions = no type = private } namespace { hidden = yes list = no location = prefix = RealMails/ separator = / type = private } namespace { inbox = no list = children location = maildir:/usr/local/virtual/%%d/%%u/:INDEX=~/shared/%%d/%%u/ prefix = shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/dovecot-sql-master.conf.ext driver = sql master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile acl_shared_dict = proxy::acl autocreate = Trash autocreate2 = Junk autocreate3 = Sent autocreate4 = Drafts autocreate5 = Templates autosubscribe = Trash autosubscribe2 = Junk autosubscribe3 = Sent autosubscribe4 = Drafts autosubscribe5 = Templates expire = Trash expire2 = Trash/* expire3 = Junk expire4 = Junk/* expire_dict = proxy::expire fts = squat home = /usr/local/virtual/%d/%u mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_log_group_events = yes quota = dict:::proxy::quotadict quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = /usr/local/virtual/%d/%u/dovecot.sieve sieve_before = /etc/dovecot/sieve/global.sieve sieve_dir = /usr/local/virtual/%d/%u/sieve sieve_global_dir = /etc/dovecot/sieve/ sieve_global_path = /etc/dovecot/sieve/global.sieve } postmaster_address = hostmaster(a)mail02.mailspooler.com protocols = imap pop3 lmtp sieve sendmail_path = /usr/lib/sendmail service auth-worker { user = root } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service dict { extra_groups = vmail unix_listener dict { group = vmail mode = 0660 } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 0 service_count = 1 } service imap-postlogin { executable = script-login /usr/local/bin/postlogin_imap.sh user = root } service imap { executable = imap imap-postlogin process_limit = 1024 vsz_limit = 256 M } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener { address = 127.0.0.1 port = 2000 } } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service pop3-postlogin { executable = script-login /usr/local/bin/postlogin_pop3.sh user = root } service pop3 { executable = pop3 pop3-postlogin process_limit = 1024 } service quota-warning { executable = script /usr/local/bin/quota-warning.sh unix_listener quota-warning { mode = 0666 user = vmail } user = dovecot } ssl_ca = </etc/postfix/wildcard.pem ssl_cert = </etc/postfix/wildcard.crt ssl_key = </etc/postfix/wildcard.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes verbose_ssl = yes protocol lda { mail_plugins = quota sieve virtual acl fts fts_squat mail_log notify expire } protocol imap { imap_client_workarounds = delay-newmail imap_id_log = * imap_id_send = * imap_idle_notify_interval = 2 mins imap_logout_format = bytes=%i/%o imap_max_line_length = 128 k mail_max_userip_connections = 100 mail_plugins = imap_acl acl fts fts_squat mail_log autocreate notify expire virtual quota imap_quota } protocol lmtp { mail_plugins = quota sieve virtual acl fts fts_squat mail_log notify expire } protocol sieve { managesieve_implementation_string = Dovecot } protocol pop3 { mail_max_userip_connections = 30 mail_plugins = expire virtual quota mail_log fts fts_squat notify pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_enable_last = yes pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s pop3_uidl_format = %08Xu%08Xv } -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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[Dovecot] Auto delete older messages in SPAM folder
by Thiago Henrique 25 Oct '10

25 Oct '10

Hello, I use Cyrus in my mailservers and I intend to migrate it to Dovecot. Cyrus has a setting that purge the emails from a mailbox under a pre-defined criteria. For example: EVENTS { ... # At 12:01 delete messages older than 60 days in SPAM folder deletespam cmd="ipurge -d 60 -f user/*/SPAM" at=1201 } Is there in Dovecot any setting like this ? Thank you. -- []'s Thiago Henrique Network Administration Digirati Networks K8 Networks

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[Dovecot] Problems converting to maildir with dsync in 2.0.6
by Nicholas Riley 25 Oct '10

25 Oct '10

I'm trying to convert from an old Dovecot (1.0.15) and mbox to a new Dovecot and maildir. I'm running into several problems with dsync which are causing my mboxes not to convert. If I use LAYOUT=fs (as I'd prefer) I get an error because I have a mailbox called "subscriptions", and none of my messages convert. Is there a way to get dovecot to put its own metadata in dotfiles instead? (I guess I can rename my mailbox too :-) % dsync mirror mbox:~/Mail dsync(nriley): Error: read() failed with subscription file /home/nriley/Maildir/subscriptions: Is a directory dsync(nriley): Error: Can't update subscription +/INBOX: Internal error occurred. Refer to server log for more information. [2010-10-21 20:17:55] [...] Also, what "server log" is it referring to above? So I tried without LAYOUT=fs, and dsync successfully converts some mailboxes, then crashes: % dsync mirror mbox:~/Mail dsync(nriley): Error: Maildir: 6ef533cd4cdb1fd454b0226bfc851bb3:2, changed UID 1846529 -> 1846531 dsync(nriley): Panic: file maildir-save.c: line 892 (maildir_save_sync_uidlist): assertion failed: (ret > 0) dsync(nriley): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0 [0xb7ea21f1] -> /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x47) [0xb7ea2317] -> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0xb7ea2544] -> /usr/lib/dovecot/libdovecot-storage.so.0(maildir_transaction_save_commit_ pre+0x858) [0xb7f2ab58] -> /usr/lib/dovecot/libdovecot-storage.so.0 [0xb7f2501f] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_transaction_commit_fu ll+0x85) [0xb7f67eb5] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_transaction_commit+0x94) [0xb7f24c14] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_c hanges+0x42) [0xb7efeaa2] -> /usr/bin/dsync [0x8056ed2] -> /usr/bin/dsync [0x80570f0] -> /usr/bin/dsync(dsync_worker_select_mailbox+0x2e) [0x8055b2e] -> /usr/bin/dsync [0x80507e6] -> /usr/bin/dsync [0x8050a3b] -> /usr/bin/dsync(dsync_brain_msg_sync_new_msgs+0x12) [0x8050c12] -> /usr/bin/dsync(dsync_brain_msg_sync_more+0x2e1) [0x8050261] -> /usr/bin/dsync(dsync_brain_sync+0x309) [0x804e949] -> /usr/bin/dsync [0x804f953] -> /usr/bin/dsync(dsync_brain_sync+0x72e) [0x804ed6e] -> /usr/bin/dsync [0x804f7d0] -> /usr/bin/dsync(dsync_brain_sync+0x55d) [0x804eb9d] -> /usr/bin/dsync(dsync_brain_sync_all+0x18) [0x804f668] -> /usr/bin/dsync(main+0x5a1) [0x804da51] -> /lib/libc.so.6(__libc_start_main+0xe5) [0xb7d29455] -> /usr/bin/dsync [0x804d2e1] [1] 30528 abort dsync mirror mbox:~/Mail I tried running it in GDB but that crashed GDB, so hopefully the above info is OK... % gdb --args dsync mirror mbox:~/Mail (gdb) run Starting program: /usr/bin/dsync mirror mbox:\~/Mail [Thread debugging using libthread_db enabled] [New process 30652] Executing new program: /usr/bin/doveconf warning: Cannot initialize thread debugging library: generic error warning: Cannot initialize thread debugging library: generic error warning: Cannot initialize thread debugging library: generic error warning: Cannot initialize thread debugging library: generic error [New process 30652] [Thread debugging using libthread_db enabled] [1] 30651 segmentation fault gdb -q --args dsync mirror mbox:~/Mail I'm using the Debian packages from rename-it.nl. Here is doveconf -n output: # 2.0.6 (aaca506ea33b): /etc/dovecot/dovecot.conf # OS: Linux 2.6.18.8-linode22 i686 Debian 5.0.6 mail_location = maildir:~/Maildir:INBOX=~/Maildir/INBOX managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date namespace { inbox = yes location = prefix = separator = / } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap ssl = required ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = passwd } -- Nicholas Riley <njriley(a)illinois.edu>

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[Dovecot] Recommendation for OCFS2 filesystem type
by Andre Nathan 25 Oct '10

25 Oct '10

Hello When creating an OCFS2 filesystem, one can specify a "filesystem type" option: -T filesystem-type Specify how the filesystem is going to be used, so that mkfs.ocfs2 can chose optimal filesystem parameters for that use. The supported filesystem types are: mail Appropriate for file systems which will have many meta data updates. Creates a larger journal. datafiles Appropriate for file systems which will host a rela‐ tively small number of very large files. A small journal is selected. Cluster size will be at least 128K. Considering I'm using a separate partition for the dovecot indices, and that I'm using mdbox, would it be more appropriate to use 'datafiles' for the mail location partition and 'mail' just for the indices? Or would 'mail' be appropriate for both even with the larger files created by mdbox? Thanks, Andre

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