Hi
all,
I have to evaluate
if JBoss Rules is a viable solution in this scenario:
We have to monitor a
large network using performance alarms. These alarms arrive every 15 minutes. We
don't know the real rate, but peaks of many tens of thousands of alarms every 15
minutes must be managed in a timely way.
We want to use JBoss
Rules to correlate these alarms, in order to show less higher level alarms
to the users .
We have basically 2
use cases:
1) I have to
correlate the alarms on a single node of the network. (for example
in node A I have 2 alarms of different severity about the connection
with node B, so I aggregate everything in a third alarm saying "I cannot connect
to node B from node A"). In this scenario I have many workingMemories (one for
each node) and not so many facts for each working memory. The performance of
JBossRules is very very good (almost linear with the number of
nodes)
2) I have to
correlate alarms among the nodes. (for example all nodes connecting with a node
A have an alarm "I cannot connect to node A from node ...", I want to
create an alarm "The node A is unreachable").
In this scenario I'm
very worried about the performance of JBoss Rules, as I prepared a test case (in
attachment) and I inferred that the growth is highly non linear on the number of
the facts. Is this performance data wrong? Am I doing something stupid? Can
someone comment?
Here are the numbers
(The numbers are not so important, but rate they grows
is)
| Number of
Facts |
Time to assert alla the new
allarms (seconds) |
Time to modify the alarms to
close them (seconds) |
Total |
| 1000 |
1.735 |
0.969 |
2.704 |
| 2000 |
5.875 |
3.000 |
8.875 |
| 3000 |
12.281 |
6.406 |
18.687 |
| 4000 |
23.672 |
11.672 |
35.344 |
| 6000 |
52.282 |
23.250 |
75.532 |
| 8000 |
87.188 |
42.532 |
129.720 |
| 12000 |
200.767 |
94.642 |
295.409 |
| 16000 |
360.909 |
176.579 |
537.488 |
| 20000 |
518.019 |
263.158 |
781.177 |
Or in a
graph:
Thanks a lot for
your interest.
--------------------------------------------------------------------
CONFIDENTIALITY
NOTICE
This message and its attachments are addressed solely to the
persons
above and may contain confidential information. If you have
received
the message in error, be informed that any use of the content
hereof
is prohibited. Please return it immediately to the sender and
delete
the message. Should you have any questions, please contact us
by
replying to webmaster@telecomitalia.it.
Thank
you
www.telecomitalia.it
--------------------------------------------------------------------