Re: single instance message store problem.

Ken Murchison <murch@xxxxxxxxxxxxxx> · Fri, 29 May 2015 16:19:42 -0400



    On 05/29/2015 03:19 PM, John McMonagle
      wrote:

    
      On Friday 29 May 2015 2:08:58 PM you wrote:
      > On 05/29/2015 01:48 PM, John McMonagle
        wrote:
      > >
      > > Having trouble getting single
        instance message store to work.
      > >
      > > Running debian jessie with cyrus
        imap 2.4.17+caldav~beta10-18 postfix 
      > > 2.11.3-1.
      > >
      > > Am following instructions in:
      > >
      > >
        https://cyrusimap.org/docs/cyrus-imapd/2.4.17/install-configure.php
      > >
      > > master.cf has:
      > >
      > > lmtp unix - - n - - lmtp
      > >
      > > main.cf has:
      > >
      > > mailbox_transport =
        lmtp:unix:/var/run/cyrus/socket/lmtp
      > >
      > > local_destination_recipient_limit =
        200
      > >
      > > local_destination_concurrency_limit
        = 5
      > >
      > > imap.conf has
      > >
      > > singleinstancestore: 1
      > >
      > > lmtpsocket:
        /var/run/cyrus/socket/lmtp
      > >
      > > Delivery works but each is an
        independent file.
      > >
      > > Any suggestions?
      > >
      > > John
      > >
      > >
      > 
      > John,
      > At the risk of sounding insulting, have
        you checked the link count (via 
      > 'ls -l') on these duplicate copies? For
        example, here I have part of my 
      > Inbox:
      > 
      > -rw------- 1 cyrus cyrus 5821 2013-07-09
        12:26 17201.
      > -rw------- 6 cyrus cyrus 36816
        2013-07-09 14:22 17202.
      > -rw------- 1 cyrus cyrus 17305
        2013-07-09 14:43 17203.
      > -rw------- 3 cyrus cyrus 44952
        2013-07-09 14:53 17204.
      > -rw------- 3 cyrus cyrus 44942
        2013-07-09 14:56 17205.
      > -rw------- 1 cyrus cyrus 1395 2013-07-09
        15:00 17206.
      > 
      > The 2nd, 4th & 5th messages have
        multiple hard-links (second column), 
      > which is how singleinstancestore does
        its thing.
      > 
      > Cheers,
      > -nic
      > 
      > 
      No problem 
      Yes I checked.
       
      -rw------- 1 cyrus mail 3919 May 29 10:35
        145026.
      -rw------- 1 cyrus mail 87189663 May 29 12:34
        cyrus.squat
      drwx------ 2 cyrus mail 204800 May 29 13:15
        Sent
      -rw------- 1 cyrus mail 2116 May 29 13:15
        145027.
       
      The 2 mails should have had links.
       
    
    Are the Message-IDs of both 145026 and 27 the same?  I doubt it
    given the 1k+ diff in size and the almost 3hr diff in delivery time.

    
    Also, are you sure that your MTA isn't breaking up the recipients
    into separate LMTP transactions?  lmtpd can/will only do single
    instance store for recipients that are part of the same transaction
    (MAIL FROM, RCPT TO, DATA sequence).  If the recipients are sent one
    at a time with duplicate DATA commands, there are treated as
    distinct messages.

    
    Finally, lmtpd can't do single instancestore for mailboxes on
    different filesystems, unless newer fs allow this now.

    
    -- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University

  
----
Cyrus Home Page: http://www.cyrusimap.org/
List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
To Unsubscribe:
https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus