Comment 10 for bug 1908452

This issue is currently reproducing on our MAAS server again. One thing I've noticed is that the MAAS server isn't reliably responding on port 5240. When just trying to wget the MAAS UI homepage, it's a crap shoot whether or not it works or times out in SYN_SENT state:

root@maas:~# wget http://localhost:5240 -O - > /dev/null
--2021-01-11 21:04:57-- http://localhost:5240/
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:5240... connected.
HTTP request sent, awaiting response... 302 Found
Location: MAAS/ [following]
--2021-01-11 21:04:57-- http://localhost:5240/MAAS/
Reusing existing connection to localhost:5240.
HTTP request sent, awaiting response... 302 Found
Location: /MAAS/r/ [following]
--2021-01-11 21:04:57-- http://localhost:5240/MAAS/r/
Reusing existing connection to localhost:5240.
HTTP request sent, awaiting response... 200 OK
Length: 3724 (3.6K) [text/html]
Saving to: ‘STDOUT’

- 100%[===================>] 3.64K --.-KB/s in 0s

2021-01-11 21:04:57 (201 MB/s) - written to stdout [3724/3724]

root@maas:~# wget http://localhost:5240 -O - > /dev/null
--2021-01-11 21:04:59-- http://localhost:5240/
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:5240... ^C
root@maas:~# wget http://localhost:5240 -O - > /dev/null
--2021-01-11 21:05:01-- http://localhost:5240/
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:5240... ^C
root@maas:~# wget http://localhost:5240 -O - > /dev/null
--2021-01-11 21:05:03-- http://localhost:5240/
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:5240... connected.
HTTP request sent, awaiting response... 302 Found
Location: MAAS/ [following]
--2021-01-11 21:05:03-- http://localhost:5240/MAAS/
Reusing existing connection to localhost:5240.
HTTP request sent, awaiting response... 302 Found
Location: /MAAS/r/ [following]
--2021-01-11 21:05:03-- http://localhost:5240/MAAS/r/
Reusing existing connection to localhost:5240.
HTTP request sent, awaiting response... 200 OK
Length: 3724 (3.6K) [text/html]
Saving to: ‘STDOUT’

- 100%[===================>] 3.64K --.-KB/s in 0s

2021-01-11 21:05:03 (203 MB/s) - written to stdout [3724/3724]