[bind10-dev] shared memory data source: file-based (mmap) vs memory-only

[Kazunori Fujiwara]

> From: JINMEI Tatuya / 神明達哉 <jinmei at isc.org>
> At Fri, 01 Mar 2013 16:45:39 +0900 (JST),
> fujiwara at jprs.co.jp wrote:
> 
>> I prefer generating another mmap file and rename it.
> 
> What do you mean by this?

I prefer that there is/are stable/complete mmap file(s) which contain
zone infomation at any time.

Replacing zone information should be done in an instant.

'rename' and munmap+mmap operation can performe a change in an instant.

>> However, preparing new mmap file takes time.

--
Kazunori Fujiwara