15 Oct
2015
15 Oct
'15
2:26 p.m.
Would be nice if Kamailio could log various events directly to journald bypassing syslog.
This would make logging much more accessible, structured and secure. Also additional
meta-data could be saved directly. This would also greatly simplify exporting logs in a
structured way using journald's json facilities. The backward compatibility will be
preserved automatically by journald.
Here is relevant write-up: http://0pointer.de/blog/projects/journal-submit.html
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19 Oct
19 Oct
9:07 a.m.
I think we can't abandon syslog, but maybe you could help us with a modular logging
system. There are many options.
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20 Oct
20 Oct
11:59 a.m.
Logging to systemd journal adds dependency to libsystemd which is not available on all
operating systems.
As I checked the provided link and it looked rather easy, I added a new module (named
log_systemd) that exports to config a wrapper to sd_journal_print().
I will try to get the core logging function to be more flexible and be able to use a
different function than syslog, so a module can overwrite the core preference. However,
that means the logging via something wanted by a module will be effective once that module
is loaded, before (from kamailio start till module load) the syslog will be used.
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12:10 p.m.
Maybe we can add logging channels so we can use both. Custom channels that are not sent to
syslog, then we don't have to change xlog etc.
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12:46 p.m.
My first thought was to use a pointer to logging function and set that by default to
syslog. A module can overwrite the pointer with another function. Obviously that can
happen when the module is loaded.
In this way, all logging will go through the new function, no need to change something
else -- so xlog() as well as the other messages from C code will be handled by the new
function.
On the other hand, sd_journal_print() seems to be a macro, meaning it cannot be used as
pointer for a function. The advantage of the macro is ability to get the file name, line
and function name of its use location. However, we already do this via our LOG/DEBUG
macros, prefixing the log messages with these attributes.
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21 Oct
21 Oct
1:39 p.m.
I pushed this morning a framework allowing to change the 'syslog' function with
another one. As sample implementation I added log_custom module which sends the log
messages via udp to a configured address and port (it was easier for me to test).
The log_systemd was enhanced to replace the syslog() with a wrapper around
sd_journal_print() -- however, I didn't have the time to test it as I am lacking
systemd familiarity, hopefully @zabbal can do it and provide some feedback. Info about how
to use it are in the readme:
* http://kamailio.org/docs/modules/devel/modules/log_systemd.html#idp1223624
Depending on what the new logging needs to initialize, log messages are diverted from
syslog either when module is loaded or module is initialized. Before that, the log
messages are stored in syslog.
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2 Nov
2 Nov
2:17 p.m.
Closed #370.
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2:17 p.m.
Going to close this one as the feature was implemented, in order to keep the issue tracker
focused on open items. Hoping that @zabbal will test and report back if there are issue.
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3105
days inactive
3123
days old
7 comments
3 participants
participants (3)
-
Daniel-Constantin Mierla -
Olle E. Johansson
-
zabbal