This bug was fixed in the package simplestreams - 0.1.0-30-g3cc8988a-
0ubuntu1.20.04.1
---
simplestreams (0.1.0-30-g3cc8988a-0ubuntu1.20.04.1) focal; urgency=medium
* Add 10s timeout to out-going requests to avoid blocking.
- Via: d/patches/0001-Add-10s-timeout-to-out-going-requ
= focal verification =
# Start by showing we can still reproduce the problem w/o the -proposed
packages:
ubuntu@dannf-test:~$ sudo iptables -A INPUT -p tcp -s 91.189.88.136 -m string
--string maas.io --algo bm -j DROP
ubuntu@dannf-test:~$ cat > repro.py
#!/usr/bin/env python3
from simplestreams.
This bug was fixed in the package simplestreams - 0.1.0-30-g3cc8988a-
0ubuntu1.20.10.1
---
simplestreams (0.1.0-30-g3cc8988a-0ubuntu1.20.10.1) groovy; urgency=medium
* Add 10s timeout to out-going requests to avoid blocking.
- Via: d/patches/0001-Add-10s-timeout-to-out-going-req
This bug was fixed in the package simplestreams - 0.1.0-30-g3cc8988a-
0ubuntu1.21.04.1
---
simplestreams (0.1.0-30-g3cc8988a-0ubuntu1.21.04.1) hirsute; urgency=medium
* Add 10s timeout to out-going requests to avoid blocking.
- Via: d/patches/0001-Add-10s-timeout-to-out-going-re
Restoring verification-needed-focal tag; bdmurray correctly points out
my focal verification was actually done on groovy :(
** Tags removed: verification-done verification-done-focal
** Tags added: verification-needed verification-needed-focal
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= focal verification =
# Start by showing we can still reproduce the problem w/o the -proposed
packages:
ubuntu@avoton07:~$ sudo iptables -A INPUT -p tcp -s 91.189.88.136 -m string
--string maas.io --algo bm -j DROP
ubuntu@avoton07:~$ cat > repro.py
#!/usr/bin/env python3
from simplestreams.cont
Hello Patricia, or anyone else affected,
Accepted simplestreams into focal-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/simplestreams/0.1.0-30-g3cc8988a-
0ubuntu1.20.04.1 in a few hours, and then in the -proposed repository.
Please help us by testi
= groovy verification =
# Start by showing we can still reproduce the problem w/o the -proposed
packages:
ubuntu@avoton07:~$ sudo iptables -A INPUT -p tcp -s 91.189.88.136 -m string
--string maas.io --algo bm -j DROP
ubuntu@avoton07:~$ cat > repro.py
#!/usr/bin/env python3
from simplestreams.con
= hirsute verification =
# Start by showing we can still reproduce the problem w/o the -proposed
packages:
ubuntu@avoton02:~$ sudo iptables -A INPUT -p tcp -s 91.189.88.136 -m string
--string maas.io --algo bm -j DROP
ubuntu@avoton02:~$ python3 ./repro.py & sleep 60
[1] 3386
# 60 seconds have pas
Hello Patricia, or anyone else affected,
Accepted simplestreams into groovy-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/simplestreams/0.1.0-30-g3cc8988a-
0ubuntu1.20.10.1 in a few hours, and then in the -proposed repository.
Please help us by test
Hello Patricia, or anyone else affected,
Accepted simplestreams into hirsute-proposed. The package will build now
and be available at
https://launchpad.net/ubuntu/+source/simplestreams/0.1.0-30-g3cc8988a-
0ubuntu1.21.04.1 in a few hours, and then in the -proposed repository.
Please help us by tes
** Changed in: simplestreams (Ubuntu Focal)
Status: In Progress => Fix Committed
** Changed in: simplestreams (Ubuntu Groovy)
Status: In Progress => Fix Committed
** Changed in: simplestreams (Ubuntu Hirsute)
Status: In Progress => Fix Committed
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** Merge proposal linked:
https://code.launchpad.net/~paride/ubuntu/+source/simplestreams/+git/simplestreams/+merge/404261
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https://bugs.launchpad.net/bugs/1908452
Title:
MAAS stops
** Also affects: simplestreams (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: simplestreams (Ubuntu Groovy)
Importance: Undecided
Status: New
** Changed in: simplestreams (Ubuntu Groovy)
Assignee: (unassigned) => Paride Legovini (paride)
** Changed i
** Merge proposal linked:
https://code.launchpad.net/~paride/ubuntu/+source/simplestreams/+git/simplestreams/+merge/404259
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https://bugs.launchpad.net/bugs/1908452
Title:
MAAS stops
** Changed in: simplestreams (Ubuntu Focal)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1908452
Title:
MAAS stops working and deployment fails after `Loading
** Merge proposal linked:
https://code.launchpad.net/~paride/ubuntu/+source/simplestreams/+git/simplestreams/+merge/404202
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https://bugs.launchpad.net/bugs/1908452
Title:
MAAS stops
** Description changed:
+ [Impact]
+
+ The bug is about simplestreams possibly getting stuck waiting forever
+ for an an HTTP response that never comes, e.g. because of networking
+ issues. This can potentially affect any package depending on
+ simplestreams, but specifically it was reported affe
** Changed in: simplestreams (Ubuntu Focal)
Assignee: (unassigned) => Paride Legovini (paride)
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Title:
MAAS stops working and deployment fai
smoser sponsored the upload:
$ dput ubuntu ../out/simplestreams_0.1.0-46-gb1f40d99-0ubuntu1_source.changes
Checking signature on .changes
gpg: ../out/simplestreams_0.1.0-46-gb1f40d99-0ubuntu1_source.changes: Valid
signature from 1E4410A4024BC6F0
Checking signature on .dsc
gpg: ../out/simplestream
** Also affects: simplestreams (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: simplestreams (Ubuntu Focal)
Status: New => Triaged
** Changed in: simplestreams (Ubuntu)
Status: Triaged => In Progress
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** Changed in: simplestreams (Ubuntu)
Assignee: (unassigned) => Paride Legovini (paride)
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https://bugs.launchpad.net/bugs/1908452
Title:
MAAS stops working and deployment fails aft
We've hit this again on our production MAAS server, see below. We're in
a position where we regularly need to check if our regiond processes are
hung and restart them. I'd therefore like to ask for a bump in priority
here. Any chance for a fix soon on the 2.9 branch? Does MAAS need
simplestreams to
** Description changed:
= How to determine you are seeing this problem =
Does your MAAS server seem to get "hung up", where deployments suddenly start
failing w/ lots of connection timeouts to the MAAS server?
Get a list of pids of your regiond processes:
$ ps -ef | grep regiond
R
** Description changed:
- We are having an issue with our production MAAS
- The web UI is available normally, we can start to deploy, but the result is a
failure - systems get stuck during `Loading ephemeral` step:
+ = How to determine you are seeing this problem =
+ Does your MAAS server seem t
fyi, we saw this recur even after switching to an HTTP images mirror. We
were seeing deployments fail, and I found a regiond process was again
hung in a system call reading a socket from images.maas.io:80. This is
our production MAAS so I didn't spend a lot of time debugging it - I
kill -9'd the pr
** Changed in: simplestreams (Ubuntu)
Status: New => Triaged
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Title:
MAAS stops working and deployment fails after `Loading ephemeral` ste
** Changed in: simplestreams
Status: In Progress => Fix Committed
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Title:
MAAS stops working and deployment fails after `Loading ephemeral
** Changed in: simplestreams
Status: New => In Progress
** Changed in: simplestreams
Assignee: (unassigned) => Adam Collard (adam-collard)
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https://bugs.launchpad.net/bugs/190
** Merge proposal linked:
https://code.launchpad.net/~adam-collard/simplestreams/+git/simplestreams/+merge/397354
** Changed in: maas
Status: New => In Progress
** Changed in: maas
Importance: Undecided => High
** Changed in: maas
Assignee: (unassigned) => Lee Trager (ltrager)
** Also affects: simplestreams
Importance: Undecided
Status: New
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Title:
MAAS stops working and deployment fails after `Loading ephemer
@dannf - Thanks for the great deep dive!
It seems the issue is in python3-simplestreams. According to [1] "Nearly
all production code should use this parameter in nearly all requests.
Failure to do so can cause your program to hang indefinitely"
The timeout needs to be set in RequestsUrlReader wh
Here's a demo of adding a timeout. I'm not sure if this has to be done
in the simplestreams library or if it can somehow be set by a caller:
$ diff -u /usr/lib/python3/dist-packages/simplestreams/contentsource.py.orig
/usr/lib/python3/dist-packages/simplestreams/contentsource.py
--- /usr/lib/pyth
A reproducer would be nice you say? Well, you can point your MAAS server to
this URL for MAAS images:
https://images.maas.io/ephemeral-v3/daily/
Then you can simulate whatever-the-heck is going on in our lab
environment by adding an iptables rule that will drop packets containing
the server cer
Here's a similar report of pythonssl hanging in the handshake:
https://bugs.python.org/issue34438
Suggestion there from upstream is to add a timeout.
simplestreams seems to be using a requests object to make the
connection. From simplestreams/contentsource.py:
381self.req = requests.ge
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