[nsd-users] Problems loading zone with nsd4

Klaus Darilion klaus.mailinglists at pernau.at
Wed Jun 18 10:57:06 UTC 2014

On 16.06.2014 09:12, W.C.A. Wijngaards wrote:
> Hi Klaus,
> On 06/11/2014 10:28 AM, Klaus Darilion wrote:
>> Hi!
>> I just tried to switch from nsd3 to nsd4 but nsd4 fails to load
>> the zone. The zone is approx 170MB (Bind text format).
>> NSD4 is configured is slave. The zone is transferred but failed
>> during loading with memory allocation error:
>> 10:17:16 nsd[3849]: zonefile at.zone does not exist 10:17:16
>> nsd[3849]: nsd started (NSD 4.0.3), pid 3847 10:17:26 nsd[3847]:
>> xfrd: zone at committed "received update to serial 1402473601 at
>> 2014-06-11T10:17:26 from TSIG verified with key
>> rcode0-distribution" 10:17:26 nsd[4059]: rehash of zone at. with
>> parameters 1 0 5 b81fd4d081abe7a4 10:17:59 nsd[4059]:
>> mremap(/var/lib/nsd/nsd.db, size 1743910912) error Cannot allocate
>> memory 10:17:59 nsd[4059]: could not add RR to nsd.db, disk-space? 
>> 10:17:59 nsd[4059]: bad ixfr packet part 2007 in diff file for at. 
>> 10:17:59 nsd[3849]: handle_reload_cmd: reload closed cmd channel 
>> 10:17:59 nsd[3849]: Reload process 4059 failed with status 256, 
>> continuing with old database 10:17:59 nsd[3847]: xfrd: zone at: soa
>> serial 1402473601 update failed, restarting transfer (notified
>> zone)
>> The server has 8GB RAM, 512KB swap and 9GB of free disk space, and
>> there is plenty of disk and ram left when nsd logs the memory
>> error.
>> Thus, I suspect something else is going wrong. Any hints?
> I think it is the memory somehow, perhaps the memory overcommit kernel
> settings in Linux are disallowing the allocation, even though there
> seems to be enough memory (at current usage).  The most recent code
> from the repository (not yet released, but passed regression tests)
> has the option to use database: "" in nsd.conf and then the nsd.db is
> not made, not mmapped, and thus a lot of disk and memory space is
> freed.  That would likely make your system work.

May the problem be related that my test server uses a 32bit kernel?


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