Re: System slowing down to a stall.

From: Brian T. Brunner (brian.t.brunner_at_gai-tronics.com)
Date: 12/13/04

  • Next message: Ben Steeves: "Re: Terminal services alternatives"
    Date: Mon, 13 Dec 2004 09:05:25 -0800
    To: <fedora-list@redhat.com>
    
    

    cron.daily is a directory containing a set of script files that cron runs on a daily basis.
    Parallels are cron.hourly, cron.weekly, and cron.monthly

    /etc/cron.daily has a command for logrotate which relies on /etc/logrotate.conf

    which points to the directory /etc/logrotate.d, which contains files containing
    lists of files to rotate (typically in /var)

    /etc/logrotate.d/mailman has given me grief whose symptoms were similar to what you describe:
    /var/log/mailman/*
    existed where
    /var/log/mailman/error
    should have been.
    The first run changed /var/log/mailman/error to /var/log/mailman/error.1 and created a new /var/log/mailman/error.
    The second run created /var/log/mailman/error.1.1, and /var/log/mailman/error.1 from the two older files,
    then created /var/log/mailman/error and /var/log/mailman/error.1
    This doubling took place on a daily basis until logrotate took hours to run and exhausts the inode table for /var.

    Not sure which releases had this exact problem (only tested and found on RH9);
    other commands in this 'tree of cron' could manifest this problem since there is no sanity check in place.

    Brian Brunner
    brian.t.brunner@gai-tronics.com
    (610)796-5838

    >>> db0@otenet.gr 12/14/04 09:40AM >>>
    Michael A. Peters wrote:

    > On 12/13/2004 08:22:28 AM, Satish Balay wrote:
    >
    >> On Tue, 14 Dec 2004, Divided By 0 wrote:
    >>
    >> > So is there anything that can show me what's eating my system up?
    >> Anything
    >> > syspicious I could check?
    >>
    >> For one - 'free' is a better tool to measure memory usage. And try
    >> the following: to see if the memory usage (used -/+ buffers/cache)
    >> decreases:
    >>
    >> free
    >> rm /etc/prelink.cache
    >> /etc/cron.daily/prelink
    >> free
    >
    >
    > Rather than remove /etc/cron.daily/prelink - copy it outside of /etc/
    > cron.daily so it can be restored if it's not the issue.
    >
    > It's quite useful to have.
    >
    >

    ok, what's this cron.daily? I can't 'man' right now.

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