restructuring/redesigning BIND (was Re: 9.2.5 db causes high cpu?)
JINMEI Tatuya / 神明達哉
jinmei at isl.rdc.toshiba.co.jp
Wed Feb 23 02:32:06 UTC 2005
>>>>> On Tue, 22 Feb 2005 23:02:25 +0100,
>>>>> Brad Knowles <brad at stop.mail-abuse.org> said:
>> Well.... yeah, ok. But I still think it takes too long to load zone
>> files and answer queries. The fact that named blocks completely until
>> all zones are loaded is annoying.
> That's BIND-8. BIND-9, at least with threading enabled, will
> start answering queries immediately on startup. I consider this to
> be one of the many advantages that BIND-9 has over BIND-8.
Ah, so this is (one of) what you meant by "the same blocking issues as
BIND8" in a previous message. Unfortunately, this is not 100% true.
BIND9 can keep responding to queries when it reloads a zone (or zones)
(BTW: this is also the case for the non-threaded version), but it still
takes time for "starting" from the scratch, and threading doesn't help
here.
JINMEI, Tatuya
Communication Platform Lab.
Corporate R&D Center, Toshiba Corp.
jinmei at isl.rdc.toshiba.co.jp
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