** Project changed: cloud-init => cloud-initramfs-tools
** Changed in: cloud-initramfs-tools
Status: Incomplete => Fix Released
** Bug watch removed: github.com/systemd/systemd/issues #12258
https://github.com/systemd/systemd/issues/12258
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https://bugs.launchpad.net/bugs/1834875
Title:
cloud-init growpart race with udev
Status in cloud-initramfs-tools:
Fix Released
Status in cloud-utils:
Fix Committed
Status in cloud-initramfs-tools package in Ubuntu:
Fix Released
Status in cloud-utils package in Ubuntu:
Fix Released
Status in cloud-initramfs-tools source package in Eoan:
Fix Committed
Status in cloud-utils source package in Eoan:
Fix Committed
Bug description:
[impact]
On Azure, it happens regularly (20-30%), that cloud-init's growpart module
fails to extend the partition to full size.
Such as in this example:
========================================
2019-06-28 12:24:18,666 - util.py[DEBUG]: Running command ['growpart',
'--dry-run', '/dev/sda', '1'] with allowed return codes [0] (shell=False,
capture=True)
2019-06-28 12:24:19,157 - util.py[DEBUG]: Running command ['growpart',
'/dev/sda', '1'] with allowed return codes [0] (shell=False, capture=True)
2019-06-28 12:24:19,726 - util.py[DEBUG]: resize_devices took 1.075 seconds
2019-06-28 12:24:19,726 - handlers.py[DEBUG]: finish:
init-network/config-growpart: FAIL: running config-growpart with frequency
always
2019-06-28 12:24:19,727 - util.py[WARNING]: Running module growpart (<module
'cloudinit.config.cc_growpart' from
'/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py'>) failed
2019-06-28 12:24:19,727 - util.py[DEBUG]: Running module growpart (<module
'cloudinit.config.cc_growpart' from
'/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py'>) failed
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/cloudinit/stages.py", line 812, in
_run_modules
freq=freq)
File "/usr/lib/python3/dist-packages/cloudinit/cloud.py", line 54, in run
return self._runners.run(name, functor, args, freq, clear_on_fail)
File "/usr/lib/python3/dist-packages/cloudinit/helpers.py", line 187, in run
results = functor(*args)
File "/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py", line
351, in handle
func=resize_devices, args=(resizer, devices))
File "/usr/lib/python3/dist-packages/cloudinit/util.py", line 2521, in
log_time
ret = func(*args, **kwargs)
File "/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py", line
298, in resize_devices
(old, new) = resizer.resize(disk, ptnum, blockdev)
File "/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py", line
159, in resize
return (before, get_size(partdev))
File "/usr/lib/python3/dist-packages/cloudinit/config/cc_growpart.py", line
198, in get_size
fd = os.open(filename, os.O_RDONLY)
FileNotFoundError: [Errno 2] No such file or directory:
'/dev/disk/by-partuuid/a5f2b49f-abd6-427f-bbc4-ba5559235cf3'
========================================
@rcj suggested this is a race with udev. This seems to only happen on
Cosmic and later.
[test case]
slightly unfortunately, the only way we've been able to reliably reproduce
this is to get the CPC team to run their tests in azure, so we'll have to rely
on them for SRU verification too
[regression potential]
The change is fairly simple and was thoroughly reviewed and tested before it
got uploaded to focal, and the backport is trivial so I am confident that the
regression potential is slight.
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