[Opendnssec-develop] checks for changed zone config and zone input files

Jelte Jansen jelte at NLnetLabs.nl
Fri Jun 12 10:59:09 UTC 2009

Hash: SHA1

Jakob Schlyter wrote:
> On 12 jun 2009, at 05.52, Jelte Jansen wrote:
>> Currently, the engine reads the zone configuration files on startup, and
>> re-reads them when it gets the 'update' command. It does not regularly
>> check if
>> they have changed. The reason for this is that I want to keep disk
>> access down a
>> bit, and continual polling/parsing seems overkill.
> do you think that stat(2) all input files once every X minutes is overkill?

if I understood correctly, most files are rewritten by the communicator, even if
there are no changes, so there would be quite a bit of parsing involved (this is
just hearsay right now, so please correct me :) )

>> So IMHO, it would make sense for the communicator to tell the engine
>> that it has
>> changed a zone configuration. But of course you are allowed to differ
>> in opinion :)
> I think we can add that for a later version - perhaps some command
> socket that it can notify the signer via.

well, the engine has this already (plain text commands on tcp localhost:47806),
to which signer_engine_cli is just a front-end

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