Re: BIND process size

From: Alexey Fadyushin (fab_at_s-tunnel.com)
Date: 10/26/04

  • Next message: Chris Cameron: "dump compression and variable block sizes" 
    Date: Tue, 26 Oct 2004 20:15:12 +0400
To: General Red Hat Linux discussion list <redhat-list@redhat.com>

    Because DNS queries ahould be answered very quickly, ndmed tries to
    cache as many DNS records it learns from other servers as possible (and
    as limited by TTL fields in those records). So, the named daemon could
    stabilize using tens of megabytes of RAM. For example, on my servers
    after running for long time (months), it uses from 14MB to 37MB,
    depending on the number of zones it holds and on intensity of requests
    from its clients.

    If you want to limit the amount of memory used by named, consider using
    the option 'datasize' in named.conf.

    Alexey Fadyushin
    Brainbench MVP for Linux.
    http://www.brainbench.com

    Rushan Sobar wrote:

    > Hi,
    >
    > am running RedHat 9 as main DNS server with bind-9.2.1-16
    > when I run top command on the uptime around 10 days I can see
    > PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
    > 28574 named 25 0 25165 24M 988 S 0.5 4.7 2:33 0 named
    >
    > the process size 24M do I have to set a cron job to restart the named every specific time so I refresh and decrease the size of the named
    > or its ok and will work fine even if the machine run for long time ?
    >
    > Advise...
    >
    > Regards
    > Rushan 

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