Re: cyrus daemons: -U option

From: kael (no email)
Date: Fri Mar 11 2005 - 18:52:20 EST

  • Next message: Henrique de Moraes Holschuh: "Re: cyrus daemons: -U option"

    Henrique de Moraes Holschuh wrote:
    > On Fri, 11 Mar 2005, Jukka Salmi wrote:
    >
    >>why is it needed to shut down a process after it has handled a certain
    >>amount of connections? I'm talking about the -U option to imapd, pop3d,
    >>lmtpd, nntpd, etc.
    >
    > It is not _needed_. But it is a defense against lurking bugs that leak
    > memory, and againt some scenarios of memory corruption and attacks.
    >
    > It is just a safety net. If it is causing too much of a performance
    > drawback for you, don't use it.

    I'm also interested with this question; specially, I don't clearly
    understand what the -U and -T options infer.

    My goal is to run nntpd 24/7 without need to do anything else except
    launching it once; but currently, nntpd starts and then stops after
    15-20 minutes.

    cyrus-master seems to be involved with this problem but I can't find how.

    In /etc/cyrus.conf, I added in the SERVICES section:

    nntp cmd="nntpd -U 500 -T 600 -f " listen="nntp" prefork=5

    then started cyrus like this:

    $ /usr/lib/cyrus-imapd/cyrus-master

    ... instead of:

    $ service cyrus-imapd start

    ... but unsuccessfully.

    Because the feed regularly stops to be delivered, I'm wondering if an
    EVENT should be created in /etc/cyrus.conf for nntpd.

    I hope you could enlighten.

    Thank you very much.

    -- 
    kael
    ---
    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: Henrique de Moraes Holschuh: "Re: cyrus daemons: -U option"





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