bind restarts many times during the day
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
MAAS |
Triaged
|
High
|
Christian Grabowski | ||
3.3 |
Triaged
|
Medium
|
Unassigned | ||
3.4 |
Triaged
|
Medium
|
Unassigned |
Bug Description
MAAS 3.3.5
We noticed in test runs that our staticaly defined VIP addresses for openstack services sometimes don't resolve and a minute later they are fine.
Turns out bind server restarts often, tens of times a day.
```
$ grep "starting BIND" named.log*|awk '{print $1}'|sed "s/.*://"|sort|uniq -c
15 12-Oct-2023
67 13-Oct-2023
175 14-Oct-2023
170 15-Oct-2023
34 16-Oct-2023
41 17-Oct-2023
36 18-Oct-2023
73 19-Oct-2023
15 20-Oct-2023
```
Christian had a look and he found that BIND is getting restarted frequently because MAAS checks the serial for each zone it updates, if it fails the check on 2 additional retries, BIND is restarted. But reason is unknown.
To show how it is hitting us I ran a script which digs six statically defined records once a minute, it failed 56 times during 12 hours, there were several cases when they were not resolving for two minutes.
description: | updated |
Changed in maas: | |
importance: | Undecided → Medium |
milestone: | none → 3.5.0 |
status: | New → Triaged |
Changed in maas: | |
assignee: | nobody → Christian Grabowski (cgrabowski) |
importance: | Medium → High |
@marian thanks for the bug report - can you please collect and attach an sos report?
Can you confirm if you're using the deb or a snap?