MAAS

  1. Bug #2020798
  2. Comment #10

Comment 10 for bug 2020798

Revision history for this message
Anton Troyanov (troyanov) wrote :

It happened to me several times last night after restarting MAAS multiple times in a row.

I was running MAAS edge inside container with 2 interfaces

8: eth0@if9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:16:3e:81:67:ef brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.0.0.62/24 metric 100 brd 10.0.0.255 scope global dynamic eth0
       valid_lft 2981sec preferred_lft 2981sec
    inet6 fe80::216:3eff:fe81:67ef/64 scope link
       valid_lft forever preferred_lft forever
10: eth1@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 00:16:3e:c9:20:fd brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.10.10.1/24 brd 10.10.10.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::216:3eff:fec9:20fd/64 scope link
       valid_lft forever preferred_lft forever

Jul 21 15:34:50 maas maas.pebble[153069]: 2023-07-21T15:34:50.027Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\x00\x00>'>
Jul 21 15:34:50 maas maas.pebble[153069]: 2023-07-21T15:34:50.027Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\n\n\x01',>

Jul 21 15:43:12 maas maas.pebble[154713]: 2023-07-21T15:43:12.017Z [rackd] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\x00\x00>', >
Jul 21 15:43:12 maas maas.pebble[154713]: 2023-07-21T15:43:12.017Z [rackd] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\n\n\x01', 9>

Jul 21 15:46:31 maas maas.pebble[155490]: 2023-07-21T15:46:31.718Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\x00\x00>'>
Jul 21 15:46:31 maas maas.pebble[155490]: 2023-07-21T15:46:31.718Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\n\n\x01',>

Jul 21 16:03:30 maas maas.pebble[157560]: 2023-07-21T16:03:30.877Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\x00\x00>'>
Jul 21 16:03:30 maas maas.pebble[157560]: 2023-07-21T16:03:30.877Z [regiond] Failure: twisted.internet.error.MulticastJoinError: (b'\xe0\x00\x00v', b'\n\n\n\x01',>

Using container with 3 interfaces, errors will come in a group of 3, if there are 4 interfaces in a group of 4. I didn't notice this error when I was running MAAS inside container with 1 interface.

However I didn't notice any issues related to degradation of functionality

According to some code comments such behaviour is expected?
src/provisioningserver/utils/services.py:498

# Use the first IP address on each interface. Since the
# underlying interface is the same, joining using a
# secondary IP address on the same interface will produce
# an "Address already in use" error.