Red Hat Bugzilla – Bug 1267552
systemd-journal-remote does not work as man page says
Last modified: 2017-09-27 23:40:05 EDT
systemd-journal-remote has some issues.
Man page has an example:
Copy local journal events to a different journal directory:
journalctl -o export | systemd-journal-remote -o /tmp/dir -
This does not work. First of all, binary systemd-journal-remote is not in default $PATH, but in /usr/lib/systemd/systemd-journal-remote.
The second issue is that this example does not work:
# journalctl -o export | /usr/lib/systemd/systemd-journal-remote -o /tmp/dir -
For SplitMode=none, output must be a file.
So I have to change it:
# journalctl -o export | /usr/lib/systemd/systemd-journal-remote -o /tmp/dir/log.journal -
Finishing after writing 1802 entries
Also if you don't read man page correctly and use file without .journal suffix, it returns really weird and missleading error:
# journalctl -o export | /usr/lib/systemd/systemd-journal-remote -o /tmp/dir/log -
Failed to open output journal /tmp/dir/log: Invalid argument
Failed to get writer for source stdin: Invalid argument
Failed to create source for fd:0 (stdin): Invalid argument
It would be nice to have working examples in man page and also some more readable error messages.
Version-Release number of selected component (if applicable):
I started gatewayd server and I can gather logs via curl.
But if I do it via systemd-journal-remote --url http://localhost:19531/ I just got:
Spawning curl http://localhost:19531/entries?boot/entries...
Failed to open output journal /var/log/journal/remote/remote-localhost:19531\x2fentries?boot.journal: No such file or directory
Failed to get writer for source localhost:19531/entries?boot: No such file or directory
Failed to create source for fd:7 (localhost:19531/entries?boot): No such file or directory
/var/log/journal is created.
I have to create /var/log/journal/remote to get it working which I don't understand. Man page says:
Retrieve events from a remote systemd-journal-gatewayd(8) instance and store them in /var/log/journal/some.host/remote-some~host.journal:
systemd-journal-remote --url http://some.host:19531/
So I suggest to change "some.host" to "remote". Maybe it would be cool if that tool creates the directory /var/log/journal/remote itself instead of that terrifying red error messages.