[2.2] MAAS should avoid updating DNS if nothing changed
Bug #1712205 reported by
Mike Pontillo
This bug report is a duplicate of:
Bug #1711700: [2.x] MAAS should avoid updating DNS if nothing changed.
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This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| MAAS |
Triaged
|
Medium
|
Unassigned | ||
Bug Description
MAAS currently reloads the named configuration after every DNS change. When a large number of changes occur, this has negative side-effects for bind9. (For context, see bug #1710278.)
By checking the zone serial (per bug #1710308), MAAS now implicitly throttles reloads. But what it does NOT do is ensure that a DNS update is *necessary* (results in a change to the current DNS zone).
For example, MAAS may receive notification of an updated StaticIPAddress due to the DHCP server committing a new lease. Right now, this may trigger a DNS update, when nothing has actually changed.
| description: | updated |
| summary: |
- [2.2] MAAS should batch multiple DNS changes into a single reload - request + [2.2] MAAS should avoid updating DNS if nothing changed |
| description: | updated |
| tags: | added: sts |
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