On Thu, Jun 01, 2017 at 07:53:09PM +0000, Zbigniew Jędrzejewski-Szmek wrote: > On Thu, Jun 01, 2017 at 01:03:43PM -0500, Jason L Tibbitts III wrote: > > ZJ> That should not be a problem, but maybe this is tickling some bug in > > ZJ> the journal code? > > > > That's what it feels like. I might be able to hack something up where I > > force a journal rotation. Rotation of the journal doesn't invalidate a > > cursor, does it? > > If the cursor points at a file which is gone, it becomes invalid. So yeah, > rotation of the journal can invalidate the cursor. In that case the code > should continue from the "beginning", i.e. the oldest available entries.
BTW., a debugging hint: if you need to generate a scenario where there data is flowing in and journal files get rotated, it's easier to use systemd-journal-remote and either feed it data from an existing journal, or generate simple entries in python [1]. This does not muck up your real logs and is easier to control than a running systemd-journald. [1] https://github.com/systemd/systemd/blob/master/src/journal-remote/log-generator.py > > ZJ> One suggestion would be to attach gdb to the hanging script and look > > ZJ> the sd_journal object. > > > > I can do that. Is there any way to get at any useful debugging state > > from within python? > > No, all the interesting information is in sd-journal code, even the C > part of the python wrapper is very thin. Zbyszek _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org
