Date: Fri, 19 Apr 2024 03:59:53 -0700 (PDT)
From: David Lang via rsyslog <rsyslog@lists.adiscon.com>
To: Ian Diddams via rsyslog <rsyslog@lists.adiscon.com>
Cc: David Lang <da...@lang.hm>
Subject: Re: [rsyslog] [EXTERNAL] Re: imfile rsyslog config sporadic since
upgrade to ubuntu20
Is there any chance that they are getting logged under a different hostname?
David Lang
On Fri, 19 Apr 2024, Ian Diddams via rsyslog wrote:
Date: Fri, 19 Apr 2024 09:24:03 +0000
From: Ian Diddams via rsyslog <rsyslog@lists.adiscon.com>
To: "rsyslog@lists.adiscon.com" <rsyslog@lists.adiscon.com>
Cc: Ian Diddams <ian.didd...@celebrus.com>
Subject: Re: [rsyslog] [EXTERNAL] Re: imfile rsyslog config sporadic since
upgrade to ubuntu20
Rsyslog tries very hard to not break backwards compatibility, so you
should not have needed to change the config. There have been bugs over the
years, but in >>general, a config should just keep working.
That of course makes perfect sense. Though as it turned it - come the
upgrade 18-> 20 ... it didn’t work at all.
That seemed to fix matters - logs to Tlog.log on the client were
appearing in the central syslog log as well.
good, that should mean that the new style config is working
It should.
But ... it ain't now....
other logs from the same systems?
other system logs handled by rsyslog.conf all work as expected.
Adding local4.* to that /var/log/node/Tlog.log works for
logger -p local4.info TEST
AND
that log gets held centrally.
But the app that wroites to /var/log/node/Tlog.log doesn’t use native
local4.<whatever> ... no idea what it does but it wortes direct to Tlog.log
(that’s down to devs years ago etc Id imagine)
This is a good start. But at this point I am not understanding the
problem. You say that with this config it is logging both locally and
centrally as expected, what >>isn't working as expected?
No.
anything set up "as standard" in rsyslog.con f works, and logs centrally.
As expected.
This Tlog.log is written to via some other means
There is a historical config (up to Ubuntu 18) where a rsyslog.d config
file using imfile DID work and logged centrally
Then that stopped working on the upgrade to Ubuntu 20.
But we found that an different working configuration was required - so
implemebnted that and the devs tell me it all then worked.
But a week or so ago that updated config stopped working.
ie the imfile stuff to capture a nmon standard rsyslog log no longer works.
based on your test, it sounds as if imfile is reading things, but not
matching something else on your central system. can you provide more info
about the config >>there?
You asked! 😉
# /etc/rsyslog.conf Configuration file for rsyslog.
#
# For more information see
# /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html
#
# Default logging rules can be found in /etc/rsyslog.d/50-default.conf
#################
#### MODULES ####
#################
$ModLoad imuxsock # provides support for local system logging
$ModLoad imklog # provides kernel logging support (previously done by
rklogd)
#$ModLoad immark # provides --MARK-- message capability
# provides UDP syslog reception
$ModLoad imudp
$UDPServerRun 514
# provides TCP syslog reception
#$ModLoad imtcp
#$InputTCPServerRun 514
$ModLoad imrelp
$InputRELPServerRun 514
###########################
#### GLOBAL DIRECTIVES ####
###########################
#
# Use traditional timestamp format.
# To enable high precision timestamps, comment out the following line.
#
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
# Filter duplicated messages
$RepeatedMsgReduction on
#
# Set the default permissions for all log files.
#
$FileOwner syslog
$FileGroup adm
$FileCreateMode 0640
$DirCreateMode 0755
$Umask 0022
#$PrivDropToUser syslog
#$PrivDropToGroup adm
#
# Where to place spool files
#
$WorkDirectory /var/spool/rsyslog
#
# Include all config files in /etc/rsyslog.d/
#
$IncludeConfig /etc/rsyslog.d/*.conf
$template
syslog,"/var/log/external/%fromhost%/syslog-%$YEAR%%$MONTH%%$DAY%.log"
$template
apacheError,"/var/log/external/%fromhost%/apache/%programname%-error-%$YEAR%%$MONTH%%$DAY%.log"
$template
apacheAccess,"/var/log/external/%fromhost%/apache/%programname%-access-%$YEAR%%$MONTH%%$DAY%.log"
$template mailError,
"/var/log/external/%fromhost%/mail/error-%$YEAR%%$MONTH%%$DAY%.log"
$template nodeStd,
"/var/log/external/%fromhost%/node/TStd-%$YEAR%%$MONTH%%$DAY%.log"
$template nodeTService,
"/var/log/external/%fromhost%/node/TLog-%$YEAR%%$MONTH%%$DAY%.log"
local4.* ?nodeService
#& ~
& stop
local5.* ?nodeStd
#& ~
& stop
local7.* ?apacheError
#& ~
& stop
local6.* ?apacheAccess
#& ~
& stop
*.* ?syslog
That hasn’t changed for about 11 years.
That rsyslog central server is also recently upgraded to Ubuntu20 from
Ubuntu18
FWIW Ive only talked about TLog - but TStd does the same thing (and has a
similar imfile/local5 config on the client as top the imfile/local4)
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