We did - we got in touch with the owner of the package and are trying to get him to work on it. Cheers, Boris. On Thu, Jan 15, 2015 at 6:51 PM, Nux! <nux at li.nux.ro> wrote: > Thanks for getting back with the "solution". > You might want to give that bugzilla entry a jolt, it's been stagnating > since last year. :-) > > Lucian > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > www.nux.ro > > ----- Original Message ----- > > From: "Boris Epstein" <borepstein at gmail.com> > > To: "CentOS mailing list" <centos at centos.org> > > Sent: Wednesday, 14 January, 2015 18:47:17 > > Subject: Re: [CentOS] DJBDNS: very weird dnscache issue > > > Lucian, > > > > So far here is the best we could find out: > > > > https://bugzilla.redhat.com/show_bug.cgi?id=1084747 > > > > Testing to see if this is the solution; so far it seems to be. > > > > Cheers, > > > > Boris. > > > > > > On Tue, Jan 13, 2015 at 2:49 PM, Nux! <nux at li.nux.ro> wrote: > > > >> Use BIND. How the times have changed. :-) > >> > >> PS: I'm also curious for a solution.. for when djbnostalgia hits me. > >> > >> Lucian > >> > >> -- > >> Sent from the Delta quadrant using Borg technology! > >> > >> Nux! > >> www.nux.ro > >> > >> ----- Original Message ----- > >> > From: "Boris Epstein" <borepstein at gmail.com> > >> > To: "CentOS mailing list" <centos at centos.org> > >> > Sent: Tuesday, 13 January, 2015 15:53:28 > >> > Subject: [CentOS] DJBDNS: very weird dnscache issue > >> > >> > Hello all, > >> > > >> > We have put a DNS server online running DJBDNS v1.06 > >> > (ndjbdns-1.06-1.el6.x86_64) on a 64-bit CentOS 6.6 server. We have > done > >> > some limited testing on the machine which it passed - i.e., dnscache > was > >> > talking to tinydns, the queries went through fine, etc. > >> > > >> > As soon as we put it online subjecting it to live load the following > >> > happened: > >> > > >> > 1) Within a short time period (about a minute) the dnscache process > >> reached > >> > the CPU utilisation level of 100%. > >> > > >> > 2) The process would then die reporting the following message to the > log: > >> > > >> > dnscache: BUG: out of in progress slots > >> > > >> > NOTE: Random sampling indicates that at no point sampled did the load > >> > exceed 200 requests per second. In tests conducted earlier the DNS > server > >> > successfully demonstrated speeds in tens of thousands of requests per > >> > second. > >> > > >> > We then proceeded to edit the following parameters in the > dnscache.conf > >> as > >> > they seemed to be the only ones that seemed relevant: DATALIMIT and > >> > CACHESIZE. They are described as limints (in bytes) on the total data > >> > memory allocation and cache, default values are 80000000 and 50000000 > >> > respectively. > >> > > >> > Playing with these demonstrated some highly counterintuitive results: > >> > > >> > 1) Setting the values lower (say, an order of magnitude lower) made > the > >> > dnscache process run longer. > >> > > >> > 2) Shortening the relative gap between the two values (for instance, > >> > setting DATALIMIT at 52000 and CACHE at 50000) made it run for about > an > >> > hour vs about 1 minute, load seeming to be about the same. > >> > > >> > 3) Running it with DATALIMIT not set was possible though it eventually > >> > failed anyways. > >> > > >> > 4) Running it with CACHESIZE not set was not possible at all. > >> > > >> > So the issue is currently still not resolved and we are stuck. > >> > > >> > Any advice will be much appreciated. > >> > > >> > Cheers, > >> > > >> > Boris. > >> > _______________________________________________ > >> > CentOS mailing list > >> > CentOS at centos.org > >> > http://lists.centos.org/mailman/listinfo/centos > >> _______________________________________________ > >> CentOS mailing list > >> CentOS at centos.org > >> http://lists.centos.org/mailman/listinfo/centos > >> > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >