[nsd-users] NSD 4 / OS limitation problem?

Fredrik Pettai pettai at nordu.net
Thu Jul 2 09:22:31 UTC 2015

Hi Anand,

On 02 Jul 2015, at 09:07 , Anand Buddhdev <anandb at ripe.net> wrote:

> On 02/07/15 08:10, Fredrik Pettai wrote:
> Hi Fredrik,
>> But I stumbled upon a problem with NSD4. The log complains about
>> memory allocation:
> While I don't have a direct answer for this specific question, I have a
> suggestion. If you set:
> database: ""
> then NSD will not create a .db file at all. Instead, it will XFR the
> zones in and just serve them from memory. Once an hour (configurable) it
> will write out the zones in plain text to disk (for reading it at the
> next restart).
> This mode uses less memory. On our NSD slaves with about 5000 zones,
> memory usage dropped from about 25GB to 17GB.

Yea, we spoke earlier about the forking issue that was fixed on linux,
but I missed out on the new zone file mode.


And, yes, database: “” makes it work fine.


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