Re: cyrus perdtion , connections not dying

From: Ian Eiloart (no email)
Date: Tue Apr 08 2008 - 09:16:32 EDT

  • Next message: Ken Murchison: "Cyrus 2.3.12 RC1"

    --On 8 April 2008 21:59:21 +1000 Rob Mueller <> wrote:

    > Ok, so lets get some more details here.
    >
    >> We've got about 12,000 users, many of whom spend most of the day in
    >> lectures, and tend to read their email at lunch time. Some staff with
    >> large
    >> mail folders tend to stay logged on all day.
    >
    >> Currently we have four OSX 10.4 servers with 6GB of RAM each. We've
    >> purchased six OSX 10.5 machines with 4GB of RAM each, but worry that this
    >> might not be adequate.
    >
    > So you've currently got 4 servers. Are these servers running both cyrus
    > and perdition? Or are they on separate servers?

    Just perdition, for a (now completed) migration from UoW IMAP. Our new
    cluster, under development, will have a cyrus murder with separate front
    ends.

    > It seems you're running perdition and a murder setup so you can migrate
    > from an existing system. Is that right? Do you have separated frontends
    > and backends, or running them altogther?
    >
    >> Usually we have around 700k simultaneous pop connections on the real
    >> servers now with perdition we have 3000+ connections

    Er, I didn't write that. That was Ram, the OP. Different person, different
    institution, similar issues. We don't offer POP here.

    > I presume you menat 700 there. Is that across all your servers, or just
    > one of the four servers? That seems like quite a few POP connections. Do
    > you really mean POP connections, or do you mean IMAP? Or do you mean POP
    > and IMAP? How many "imapd" and "pop3d" processes do you see on each
    > server? How many do you see in total across all 4 servers?
    >
    > Rob
    >

    -- 
    Ian Eiloart
    IT Services, University of Sussex
    x3148
    ----
    Cyrus Home Page: http://cyrusimap.web.cmu.edu/
    Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki
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  • Next message: Ken Murchison: "Cyrus 2.3.12 RC1"





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