[Pdns-users] database structure (records table)

Norbert Sendetzky norbert at linuxnetworks.de
Sun Nov 30 14:34:52 UTC 2003

Hash: SHA1

On Sunday 30 November 2003 14:52, Markus Welsch wrote:
> That's true. From the other question you seem to be using LDAP;
> have you been using a performance analysis using different backends
> and if so do you have some results for us?

Well, I've written the backend - but I didn't compare different 
backends (e.g. mysql vs. ldap) for performance.

> I'm also interested in a approximately number of domains / records
> you are serving and about any instabilites you may have come
> accross.

Only a few. LDAP is most useful in corporate environments for 
centralized management, so it serves only 4 domains with ca. 300 
entries for me. Easy management, stability and failover are more 
important than serving million of records at maximum speed for a 
domain hoster.

But without tests, I wouldn't say the ldapbackend isn't capable to 
match the speed of a relational database. There is also a chance that 
it outperforms a RDMS, because LDAP was designed for top read 
performance at the cost of write performance.

> I think those who are setting up namesevers should be familar with
> the base of a record, etc which is outlined in detail in RFC 1035.

Maybe it would be nice if the do, but that isn't the case in 99,99% of 
all installations. You also don't set up a mailserver and read SMTP 
RFCs before.


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