Journal polling not working on Ubuntu 24.04
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- linux, python, ubuntu
- Domain
- operating-systems
Research direction
Start with the reported Python snippet and the documentation's “Example: polling for journal events,” then reproduce the behavior on Ubuntu 24.04 with python3-systemd 235 and compare it with Ubuntu 22.04/version 234. Trace the Reader seek, wait, and iteration behavior; done means matching new kernel journal entries are yielded after APPEND.
Written by the indexing model from the issue text.
Description
This code was working on Ubuntu 22.04, with python3-systemd version 234:
j = systemd.journal.Reader()
j.this_boot()
j.log_level(systemd.journal.LOG_INFO)
j.add_match(SYSLOG_IDENTIFIER="kernel")
# Seek to the end of the journal to only capture new entries
j.seek_tail()
while True:
if j.wait(10):
for entry in j:
# do things
But on Ubuntu 24.04 and python3-systemd version 235, it is not working anymore. Especially, the "for" loop does not encounter any item. If we try to run next(j) it immediately raises StopIteration, even if j.wait(timeout) returned APPEND.
I also tried the "Example: polling for journal events" code from the documentation (https://www.freedesktop.org/software/systemd/python-systemd/journal.html#example-polling-for-journal-events) and it is not working.
- Dominant language
- C
- Stars
- 522
- Forks
- 79
- PR merge metrics
- No merged PRs in 30d
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