How often is it suggested to restart Bind8 ?

[Kevin Darcy]

I was thinking more along the lines of setting a datasize limit and then restarting
named when it crashes. But, as I said, this would only be a last resort, where you
needed to keep memory free for other processes/servers/daemons on the same box. On
a dedicated DNS server, I wouldn't set a limit at all, but if I were chronically
short on memory, I'd probably want to tune the cleaning interval, and possibly the
max-ncache-ttl, just to keep the cache as clean as possible at all times (tuning
these to reduce memory footprint will, however, increase CPU and/or network load;
just be aware of the tradeoffs). And, of course, make sure I had plenty of swap
space...


- Kevin

pwolfe at qred.quintiles.com wrote:

> So should a cronjob be set to monitor the limit and restart named when the limit
> is reaching its max.?
>
> Barry Margolin <barmar at bbnplanet.com> on 09/02/2000 16:56:18
>
>
>
>  To:      comp-protocols-dns-bind at moderators.uu.net
>
>  cc:      (bcc: Philip Wolfe/QRED/Quintiles)
>
>
>
>  Subject: Re: How often is it suggested to restart Bind8 ?
>
>
> In article <4.2.0.58.20000209145832.03d291e0 at pop3.mailbox.co.uk>,
> Andy Spiers  <andy at centralnic.com> wrote:
> >
> >At 01:21 PM 2/9/00 +0100, Gildas PERROT wrote:
> >>I am using bind8.2.2p5 as a primary server on Solaris 2.6. I found
> >>that the cache is growing a lot and sometimes it would be good to
> >>clean it by a restart. How often is it suggested to restart it ?
> >
> >You should never have to restart bind periodically. Just set a limit on the
> >amount of memory used by the RR cache by using data-size in the options
> >section of named.conf. For example:
>
> What do you think happens when it reaches that limit?  I'll tell you: named
> crashes and you have to restart it.
>
> --
> Barry Margolin, barmar at bbnplanet.com
> GTE Internetworking, Powered by BBN, Burlington, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.