[
http://jira.jboss.com/jira/browse/JBESB-1504?page=comments#action_12418853 ]
Daniel Bevenius commented on JBESB-1504:
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As long as we take into account that the first run will take longer time, then successive
runs will not cause the rule base to reloaded, but a check will be done to compare the
rule set that exists in-memory to the one of the file system.
I don't thing that the performance hit is in that check. I think that it has do to
with the test is making 100 method calls to
org.jboss.internal.soa.esb.services.routing.cbr.xmlContentEquals. As the the xpath
expression is the same everytime, there might be a performance gain to cache the compiled
xpath expression but I'm not sure.
I'll investigate this and to find out here the overhead is.
While I've got you there perhaps you can help me....
I've tried to run the test in
https://svn.corp.jboss.com/repos/soa/trunk/qa/tests/ by
running:
'ant -Dtestng.filter=Performance8Test -Dtest.performance.messagecount=1
-Dtest.performance.messagefile=5KB_message.xml -Dtest.performance.sender=jms
-Dtest.performance.speed=backlog executeng' and not getting any errors but the test
report does not contain anything and server only logs:
[ESBCallback] Cleaning message store
Am I doing something wrong here, or where should I be looking for reports from the test?
Thanks
CBR using rules has poor performance
------------------------------------
Key: JBESB-1504
URL:
http://jira.jboss.com/jira/browse/JBESB-1504
Project: JBoss ESB
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: Content Based Routing
Affects Versions: 4.2.1
Environment: SOA-P 4.2.0.beta1
Reporter: Martin Vecera
Assigned To: Daniel Bevenius
Fix For: 4.4
Attachments: JBESB-1504.tar.bz2
We have a simple performance that uses ContentBasedRouter to route XML messages:
<action class="org.jboss.soa.esb.actions.ContentBasedRouter"
name="ContentBasedRouter">
<property name="ruleSet"
value="MyESBRules-XPath.drl"/>
<property name="ruleLanguage"
value="XPathLanguage.dsl"/>
<property name="ruleReload" value="true"/>
<property name="destinations">
<route-to destination-name="regular1"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular2"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular3"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular4"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular5"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular6"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular7"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular8"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular9"
service-category="wiretapCategory1"
service-name="regularService"/>
<route-to destination-name="regular0"
service-category="wiretapCategory1" service-name="catchService"/>
</property>
</action>
I have created a rule set of 100 rules. Like this:
package com.jboss.soa.esb.routing.cbr
import org.jboss.soa.esb.message.Message;
import org.jboss.soa.esb.message.format.MessageType;
expander XPathLanguage.dsl
global java.util.List destinations;
rule "ProductId1"
salience 100
when
xpathEquals "/Order/OrderLines/OrderLine/Product/@productId", "1"
then
Destination : "regular1";
end
...
rule "ProductId299"
salience 100
when
xpathEquals "/Order/OrderLines/OrderLine/Product/@productId",
"299"
then
Destination : "regular0";
end
rule "Default rule"
salience 1
when
then
Destination : "regular0";
end
See
https://svn.corp.jboss.com/repos/soa/trunk/qa/tests/quickstarts/performan...
for the whole file.
The performance is very poor (see SOA-240 for reports). Only a tens of messages per
second.
What's the problem here? Is the Rules engine really so slow? Or is it parsing the
file every time a message arrives?
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