BIND 10 #2328: Designing incremental updates to in-memory zone data

[BIND 10 Development]

#2328: Designing incremental updates to in-memory zone data
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:  Next-Sprint-
                   Priority:         |  Proposed
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
  incremental updates to in-memory   |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------
Description changed by jinmei:

Old description:

> We need to extend the in-memory data source implementation so we
> can incrementally update existing data after DDNS or IXFR-in.
> Several things have to be considered:
>
> - "merge" and "subtract" interface for `RdataSet`.  Regarding merge,
>   we also need to avoid having duplicate RDATAs.
> - removing names from `DomainTree`
> - making sure a name is removed from `DomainTree` when its `RdataSet`s
>   are removed
> - inter module protocol for updates (in particular, DDNS/xfrin and auth)
> - extend `datasrc::ClientList` class to support updates
> - update auth/DDNS/xfrin to implement these
> - (there should be more)
>
> The goal of this ticket is to have these discussions, led by someone
> with initial proposals, and create specific development tickets.

New description:

 We need to extend the in-memory data source implementation so we
 can incrementally update existing data after DDNS or IXFR-in.
 Several things have to be considered:

 - "merge" and "subtract" interface for `RdataSet`.  Regarding merge,
   we also need to avoid having duplicate RDATAs.
 - removing names from `DomainTree`
 - making sure a name is removed from `DomainTree` when all its `RdataSet`s
   are removed
 - inter module protocol for updates (in particular, DDNS/xfrin and auth)
 - extend `datasrc::ClientList` class to support updates
 - update auth/DDNS/xfrin to implement these
 - (there should be more)

 The goal of this ticket is to have these discussions, led by someone
 with initial proposals, and create specific development tickets.

--

-- 
Ticket URL: <http://bind10.isc.org/ticket/2328#comment:1>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development