Aha! I think in this case array passing may be what I need. Thanks!
Brian
On 1/4/2013 4:00 AM, Rainer Gerhards wrote:
Quick hint: you need to set the param passing mode inside the plugin. Not the
template type specifies what you get, but the plugin asks the engine. What you
look for is JSON passing mode (or maybe array passing). Ommongodb should help
you, else ping me early next week.
Rainer
-----Original Message-----
From: rsyslog-boun...@lists.adiscon.com [mailto:rsyslog-
boun...@lists.adiscon.com] On Behalf Of Brian Knox
Sent: Thursday, January 03, 2013 2:22 PM
To: rsyslog@lists.adiscon.com
Subject: Re: [rsyslog] working with list templates
Hi Radu! Thanks for the link, but I already know how to work with list
templates from a conf perspective. I'm looking for good examples of
accessing that data from code in an output plugin. Currently my plugin
simply does this in CODESTARTdoAction:
CHKiRet(writeHiredis(ppString[0], pData));
This passes the entire output from the template as a string to redis.
This works ok when I want to construct redis commands from templates
using individual properties straight to hiredis's redisAppendCommand
function, such as:
"HINCR progcount %programname% 1"
But it does not work when I want to send whole messages to redis
(whitespace in the syslog message be interpreted as delimiters in the
command, causing errors).
hiredis has another function however, redisAppendCommandArgv, that is
variatic. In order to use this I would like to construct a list using
the list templates, and then access each individual member of the list
from the output plugin code so I can construct the array to pass to
redisAppendCommandArgv. So, let's say I construct the following
template:
template(name="redisPushQueue" type="list") {
constant(value="LPUSH")
constant(value="queue_key")
property(name="msg")
}
From the output plugin code, how do I then access each member of this
list individually with the new template code?
Make sense?
Brian
1) Can
On 1/3/2013 7:59 AM, Radu Gheorghe wrote:
Hello Brian,
Just to make sure we're not missing the obvious:
http://www.rsyslog.com/doc/rsyslog_conf_templates.html
Besides that, there are a couple of examples here:
2013/1/3 Brian Knox <taote...@gmail.com>
I've been working on some improvements for the omhiredis output
plugin this
week. I think I've come up with a better way of combining templates
with
redis command formatting. In order to do this, I need to, given a
list
style template, get the number of elements in the list and the
length of
each element.
I've only worked with string templates (from a plugin perspective)
with my
output plugins so far. Is there a good example somewhere for
dealing with
list templates?
On other fronts, I now omhiredis working with batch dequeue in
conjunction
with hiredis' pipeline commands. In local tests this let me push
around
250,000 redis commands per second to a redis instance (I was getting
around
50k commands of the same type with the same test before the
changes).
Rainer - I'm hoping to wrap up this next round of improvements in a
few
days and get a patch your way!
Brian
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