Setting 'nice' level for specific binary

From: Chris (redhat-list_at_dotcomdesigners.com)
Date: 08/24/05

  • Next message: Karl Latiss: "Re: Setting 'nice' level for specific binary" 
    To: <redhat-list@redhat.com>
Date: Tue, 23 Aug 2005 19:58:03 -0700

    Is there a way to globally force a lower priority ('nice' level) on a
    specific binary executable, that technically can be called from any cgi-bin
    directory on a single server, where each copy is owned by a different
    hosting user? The filename is unique so we can assume any requests to this
    same filename are for the same binary file. I'd like to experiment with
    re-nicing a particular hosted application that at times creates such
    incredibly high CPU loads that everything else stops responding (httpd,
    sshd, etc) and you can't even log on to kill these processes. This
    typically requires a hard reboot to get things working again. Because of
    that I implemented scripts that monitor server load and when things get
    hairy (server loads exceeding 100+) they stop certain services to give this
    particular app a chance to exit gracefully, which works for the most part.
    But it can still take 60-120+ seconds at this type of loads to do anything.
    Would be nice to run this particular app, many copies of it that is, at
    lower nice level so we can at least SSH to the server when the load gets
    this high. I'd rather have my scripts send me an SMS message when things
    get hairy but be able to log on via SSH and at least manually control this
    app at that point, rather than mucking with other services to free up
    resources.

    Thank you,

    Chris 

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  • Next message: Karl Latiss: "Re: Setting 'nice' level for specific binary"

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