On Thu, 12 Dec 2013, Erik Steffl wrote:
I will try to test librelp (with keepalive) but I need some workaround in
the meantime (sort of right now).
Already tested that cron-ing logger once per minute keeps the connection
alive so that's my backup workaround.
immark would be better cause then I only need to install rsyslog config
(easier deployment) plus it would be more efficient, do you think that what
David suggested is the best option?
if I understood David's comment something like this is what I am looking
for:
if
prifilt("local0.*") or
prifilt("local1.*") or
prifilt("local2.*") or
prifilt("local3.*") or
prifilt("local4.*") or
prifilt("local5.*") or
prifilt("local6.*") or
prifilt("local7.*") or
( prifilt("syslog.info") and ... message is --MARK--)
pretty much, I would do $msg == '--MARK--' as the second test
David Lang
then {
action(type="mmjsonparse")
if $parsesuccess == "OK" then {
action(
type="omrelp"
target="someHost"
port="5140"
template="json"
# see http://www.rsyslog.com/doc/node32.html
# disk used if forwarding blocked
queue.filename="json"
queue.maxdiskspace="75161927680" # 70GB (valuable data)
action.writeAllMarkMessages="on"
)
} else {
...
}
reasonable? Can be improved?
thanks!
erik
On 12/12/2013 12:44 PM, Rainer Gerhards wrote:
On Thu, Dec 12, 2013 at 9:17 PM, David Lang <[email protected]> wrote:
On Thu, 12 Dec 2013, Erik Steffl wrote:
On 12/12/2013 08:29 AM, David Lang wrote:
what facility and severity do the immark messages show up as?
immark just generates messages, normal filtering rules determine where
theya re sent, and the transport used (in this case RELP) has no effect
on if they are sent or not, it's all in the filters.
thanks, that makes my question a lot more specific. How do I configure
immark to use a specific facility?
I don't think you do. I think they are using the syslog or kernel
facility, but I'd have to setup a quick test to check. I'll try to do it
tonight if I can, but since you are seeing the messages locally, log with
RSYSLOG_DebugFormat for a couple of minutes and look at what they are
logged as.
its syslog.=info:
http://git.adiscon.com/?p=rsyslog.git;a=blob;f=plugins/immark/immark.c;h=0e946c0b92d555174b38de42dd236ac4432b98e7;hb=HEAD#l196
All I found when searching is this:
$ModLoad immark.so
$MarkMessagePeriod 60
which is what I have in my config.
Given that I see the --MARK-- messages in /var/log/syslog and
/var/log/kern.log I guess they are going to kern facility. Given the
config
below I need to use e.g. local0 facility.
no, you need to change your filtering config to send these messages, not
try to change the messages to match your current config.
you actually can't. I considered mark a legacy feature and have not
enhanced it since 8 yrs.
Keepalive is the better option. librelp is not yet build due to the current
workload. The code actually right now is at github only, as I have some
problems with the Adiscon repo. Easy to clone from here
https://github.com/rgerhards/librelp
messages have the facility that they have, you don't change the facility
any more than you re-write the message to say something different.
actually, in this case a config option would make sense. But again, I
thought this is just legacy...
Rainer
David Lang
Unfortunately can't find anything related to --MARK-- and facilities
(or
anything else other than the two settings above).
Any ideas/pointers? Or if not possible to configure immark can I catch
the --MARK-- message and change its facility? Or catch the --MARK--
message
and have action that uses omrelp and same target (would that use same TCP
connection)?
Thanks!
erik
David Lang
On Thu, 12 Dec 2013, Erik Steffl wrote:
Date: Thu, 12 Dec 2013 02:30:52 -0800
From: Erik Steffl <[email protected]>
Reply-To: rsyslog-users <[email protected]>
To: rsyslog-users <[email protected]>
Subject: [rsyslog] immark - how to use with action(...)
How would I use immark to send mark messages for defined actions that
use omrelp?
I have tried something like this:
$ModLoad immark.so
$MarkMessagePeriod 60
if(..)
if
prifilt("local0.*") or
prifilt("local1.*") or
prifilt("local2.*") or
prifilt("local3.*") or
prifilt("local4.*") or
prifilt("local5.*") or
prifilt("local6.*") or
prifilt("local7.*")
then {
action(type="mmjsonparse")
if $parsesuccess == "OK" then {
action(
type="omrelp"
target="someHost"
port="5140"
template="json"
# see http://www.rsyslog.com/doc/node32.html
# disk used if forwarding blocked
queue.filename="json"
queue.maxdiskspace="75161927680" # 70GB (valuable data)
action.writeAllMarkMessages="on"
)
} else {
...
}
I see --MARK-- messages in /var/log/syslog and /var/log/kern.log but
they are not send by omrelp action (the action works fine, normal
messages are going through).
Verified where the --MARK-- messages are going using strace so pretty
sure they are only going to those two local files, nothing goes over
RELP. Also checked on the receiving side of RELP, no incoming messages
have --MARK-- in them. And the connection goes down which is also very
strong indicator that there are no --MARK-- messages.
How do I configure it so that the --MARK-- messages are send over RELP
protocol to someHost (over same TCP connection that the given action
uses, it's for purpose to keep alive the connection since RELP does
not support KeepAlive (yet, Rainer just added it to master, thanks!))
This is on Ubuntu 13.10 using rsyslog 7.5.6, librelp 1.2.0 from
adiscon repo.
Thanks!
erik
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