Re: occasional delays in lmtpd

From: Alan Thew (no email)
Date: Thu Jul 06 2006 - 15:53:48 EDT

  • Next message: Kjetil Torgrim Homme: "Re: occasional delays in lmtpd"

    On Thu, 6 Jul 2006 17:36 , Kjetil Torgrim Homme <> said:

    >we're running Cyrus 2.2.12 on RHEL3U7. about once a day (typically peak
    >hours), we have a problem with lmtpd just "hanging":
    >
    >Jul 6 13:36:27 mail-imap3 lmtpunix[1578]: executed
    >Jul 6 13:55:08 mail-imap3 lmtpunix[1578]: accepted connection
    >Jul 6 13:55:08 mail-imap3 lmtpunix[1578]: lmtp connection preauth'd as postman
    >
    >note the 18 minute delay. during this time, there are no deliveries to
    >this Cyrus.
    >
    >at this time, there's about 70% idle CPU and 6 GiB free RAM, so it
    >shouldn't be resource constrained. IMAP service seems snappy as ever.
    >
    >this is the entry from cyrus.conf:
    >
    > lmtpunix cmd="lmtpd" listen="/uio/PKG/config/var/imap/socket/lmtp" prefork=2
    >
    >we are running several instances of Cyrus on each cluster node, and this
    >happens simultaneously to all instances on a given node.
    >
    >looking at the code, it seems the wait happens inside
    >service/master.c:main, and probably is related to the lock file. is it
    >possible there is a race condition?
    >
    Are you using db or skiplist?

    -- 
    Alan Thew                                       
    Computing Services,University of Liverpool      Fax: +44 151 794-4442
    ----
    Cyrus Home Page: http://asg.web.cmu.edu/cyrus
    Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu
    List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
    

  • Next message: Kjetil Torgrim Homme: "Re: occasional delays in lmtpd"





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