Strange Performance Problem in Rules
by ravibhatt
Hi all,
I have a rule that looks like below:
Rule "CheckSomeConditionRule"
When
$project:Project(status==STATUS_ENUM.DATA_FETCHED)
$rule:Rule(name=="CheckSomeConditionRule")
$processResult1:ProcessResult(projectId==$project.id, inputSource memberOf
$rule.inputTableList
, outputTable=="")
$processResult2:ProcessResult(projectId==$project.id, inputSource memberOf
$rule.inputTableList
inputSource!=$processResult1.inputSource,
this!=$processresult1, outputTable=="")
$processData1:ProcessData(parent==$processResult1)
$processData2:ProcessData(this!=$processData1,parent==$processResult2
,eval($processData2.getValue("a").equalsIgnoreCase($processData1.getValue("a")))
,eval($processData2.getValue("b").equalsIgnoreCase($processData1.getValue("b")))
Then
/////do important stuff here
end
I am trying to run this rule with two data set (represented by ProcessResult
class that holds several rows in terms of ProcessData objects), each data
set has 10000 records only. (In real usages, we will have atleast a million
records in both these data sets.)
I am inserting all of the rows i.e all rows represented in terms of
ProcessData objects. I am inserting some 20000+ objects to test this. While
inserting, first 10000 records are getting inserted fairly quickly, the next
10000 records are taking a lot of time.. in tunes of 15 -30 mins.
I understand that drools is trying to create activations as i insert facts
but this seems to be too slow. is it eval in my conditions that is making it
slower? or is it equalsIgnoreCase method? if i use == instead of
equalsIgnoreCase my rule never gets fired.
I am doing something wrong? please advice.
My data structure is inherently hierarchical:
ProcessResult (represnts a table)
contains
ProcessData (represents rows)
contains
list of Dimensions & list of Metrics (accessed via getValue()
method above)
Thanks in Advance,
Ravi
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15 years, 11 months
Rules Fest October 2010
by Mark Proctor
Rules Fest is in full swing, http://rulesfest.org/html/home.html.
Great attendance with around 100 people and great food :)
Myself, Edson and Davide are here. Davide did a great lunch time talk.
Kris will be arriving on Wednesday to help with the BootCamp.
It's been a lot of preparation last week and we'll be very busy this
week and next, so apologies if our responses aren't timely on mailing
lists and irc.
15 years, 11 months
Re: [rules-users] GWT Console and WSHT Rendering
by sam.squire＠paretopartners.com
I have worked it out using the sourcecode.
To retrieve variables in forms from your process, you can use two
Freemarker variables:
- Task is for human task information fields. Take a look at the Task
class and the TaskData class to see what you can access from your
template.#
This way you can also get to your task metadata like:
${task.taskData.createdOn?datetime} would get the date the task was
created.
- Content is for your own mapped fields.
You will have to make a dataInputAssociaton that has the name of "Content"
and use a dataInputAssociation to provide it with a HashMap of the values
you want to be available in your template. The HashMap you put into
content is accessible by content.<keyName> from the template.
Is this the official way to do it or is there a better way?
Thanks.
Sam Squire
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15 years, 11 months
parallel folw execution
by borg
Hello,
I was trying to understand what would happen if several events/object of the
same type, which is used to start a flow, occur simultaneously or before
each flow execution they trigger would end.
Would i have several running instances of the flow for each trigger event?
Or would it wait turns to run each event/object through the same instance
sequentially?
As a practical example, one could imagine the typical loan approval example
and consider such events/objects the loan requests.
My point is exactly that each request does not affect the others (previous
or future) and as such they should all run in parallel (only limited because
of the paralelization capacity of the available resources).
Thanks
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15 years, 11 months
Some rule packages have disappeared in Guvnor
by John Peterson
Hey all,
We restarted our JBoss Server (version 4.2.3.GA) on Linux and after the
restart completed, we noticed that some of our packages (2) have
disappeared. I've gone through the server log and there is an error
(PathNotFoundException) for one of the missing packages, which I've
pasted below. Included in Guvnor is the default package (still
present), the mortgages example package (still present), and another
working package for testing ideas (also still present).
Has anyone seen this type of error before? Also, can someone tell me
where these packages are stored in Guvnor so we can verify that the
missing package is still out there? Any help would be appreciated.
Thanks!
2010-10-15 13:41:48,241 INFO [STDOUT] Checking access for : Home
Mortgage
2010-10-15 13:41:48,241 INFO [STDOUT] Checking access for : Commercial
Mortgage
2010-10-15 13:42:43,975 INFO [STDOUT] ERROR 15-10 13:42:43,971
(RulesRepository.java:loadPackage:369) Unable to load a rule package.
javax.jcr.PathNotFoundException: com.rulepackage
at
org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2470)
at
org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:3
64)
at
org.drools.guvnor.server.files.FileManagerUtils.getLastModified(FileMana
gerUtils.java:367)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationCon
text.java:31)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:56)
at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInte
rceptor.java:28)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionIntercept
or.java:77)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextI
nterceptor.java:44)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterce
ptor.java:157)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107
)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBea
nInterceptor.java:166)
at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.
java:102)
at
org.drools.guvnor.server.files.FileManagerUtils_$$_javassist_8.getLastMo
dified(FileManagerUtils_$$_javassist_8.java)
at
org.drools.guvnor.server.files.PackageDeploymentServlet.getLastModified(
PackageDeploymentServlet.java:61)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:705)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)
at
org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpSe
rvletRequest.java:53)
at
org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilte
r.java:96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:230)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:175)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAs
sociationValve.java:182)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.j
ava:84)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:102)
at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConn
ectionValve.java:157)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:2
62)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
4)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:636)
2010-10-15 13:42:44,005 ERROR
[org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/drools
-guvnor].[PackageDeploymentServlet]] Servlet.service()
for servlet PackageDeploymentServlet threw exception
javax.jcr.PathNotFoundException: com.rulepackage
at
org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2470)
at
org.drools.repository.RulesRepository.loadPackage(RulesRepository.java:3
64)
at
org.drools.guvnor.server.files.FileManagerUtils.getLastModified(FileMana
gerUtils.java:367)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationCon
text.java:31)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:56)
at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInte
rceptor.java:28)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionIntercept
or.java:77)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextI
nterceptor.java:44)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterce
ptor.java:157)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationCon
text.java:68)
at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107
)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBea
nInterceptor.java:166)
at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.
java:102)
at
org.drools.guvnor.server.files.FileManagerUtils_$$_javassist_8.getLastMo
dified(FileManagerUtils_$$_javassist_8.java)
at
org.drools.guvnor.server.files.PackageDeploymentServlet.getLastModified(
PackageDeploymentServlet.java:61)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:705)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)
15 years, 11 months
Re: [rules-users] Stateless K-Session but no Sequential Mode
by Greg Barton
The stateless session is just a convenience wrapper around the stateful session.
GreG
On Oct 20, 2010, at 6:52, "Swindells, Thomas" <TSwindells(a)nds.com> wrote:
That is enough reason in itself - why go to the bother of having to do inserts, fire all rules and dispose separately when stateless sessions do that all for you - as the javadoc says:
"StatelessKnowledgeSession provides a convenience API, wrapping StatefulKnowledgeSession. It avoids the need to call dispose()."
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-
bounces(a)lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: 20 October 2010 12:34
To: Rules Users List
Subject: Re: [rules-users] Stateless K-Session but no Sequential Mode
If I understand this correctly, there isn't much point in having a
non-sequential-mode stateless session.
If I want a one-shot execution, I can call inserts, fireAllRules and
dispose() just as well in a stateful session.
Possibly this is due to past development.
Thanks!
-W
On 20 October 2010 09:13, Swindells, Thomas <TSwindells(a)nds.com> wrote:
I've not used it but from what I understand:
Sequential mode:
1. Insert facts
2. Create activations.
3. Fire all activations.
4. Done.
None Sequential (Standard) mode:
1. Insert facts.
2. Create initial activations.
3. Pop and fire highest salience activation.
4. Update activations (if update, retract etc was performed).
5. If there are more activations goto 3.
6. Done.
They key difference is that in the standard mode rule consequences can
activate and deactivate activations as they update the working memory.
Thomas
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-
bounces(a)lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: 19 October 2010 22:34
To: Rules Users List
Subject: Re: [rules-users] Stateless K-Session but no Sequential Mode
Indeed I have, and I've read it down to the last paragraph:
"Sequential mode can only be used with a Stateless Session and is off
by default. To turn it on, either call..." This tells me about a
StatelessKnowledgeSession WITH sequential mode.
So, what if I create a StatelessKnowledgeSession from a KnowledgeBase,
but do not turn sequential mode on?
Best
-W
2010/10/19 Michael Anstis <michael.anstis(a)gmail.com>:
No doubt I'm missing the point but have you seen "3.3.7.1. Sequential
Mode"
in Expert's documentation?
On 19 October 2010 21:27, Wolfgang Laun <wolfgang.laun(a)gmail.com> wrote:
As I understand the Expert documentation, Sequential Mode has to be
turned on, even with a Stateless Knowledge Session to achieve all the
shortcuts and speed-ups.
What the documentation does not tell me (or I haven't seen it) is the
difference of a Stateless Knowledge Session with and without Sequential
Mode.
Cheers
Wolfgang
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15 years, 11 months
gwt-console-server resteasy 1.0.2 and BPMN serviceTasks
by sam.squire＠paretopartners.com
Hello there,
I am having a problem with the gwt-console-server and resteasy JBoss
library. My serviceTask uses resteasy to communicate with a different
server. The conflict is that gwt-console-server uses resteasy 1.0.2 and my
application uses 2.0.1.
How do I isolate the libraries used by gwt-console-server and my
serviceTasks?
What is the best way to solve this problem? I have tried downgrading my
application to 1.0.2 (breaks my application) and upgrading the server to
2.0.1 (breaks the server) but without code changes this is unlikely to
work.
Will GWT console ever be upgraded to 2.0.1?
Sam Squire
This message may contain confidential and privileged information and is intended solely for the use of the named addressee. Access, copying or re-use of the e-mail or any information contained therein by any other person is not authorised. If you are not the intended recipient please notify us immediately by returning the e-mail to the originator and then immediately delete this message. Although we attempt to sweep e-mail and attachments for viruses, we do not guarantee that either are virus-free and accept no liability for any damage sustained as a result of viruses.
Please refer to http://www.bnymellon.com/disclaimer/piml.html for certain disclosures.
15 years, 11 months
Stateless K-Session but no Sequential Mode
by Wolfgang Laun
As I understand the Expert documentation, Sequential Mode has to be
turned on, even with a Stateless Knowledge Session to achieve all the
shortcuts and speed-ups.
What the documentation does not tell me (or I haven't seen it) is the
difference of a Stateless Knowledge Session with and without Sequential Mode.
Cheers
Wolfgang
15 years, 11 months
Does Knowledgebase partitioning work at all?
by Tim 4076
I am attempting to use the multi thread knowledgebase partitioning
feature on drools 5.1, but am not having much luck. Using a stateless
session with MultithreadEvaluationOption.YES and
MaxThreadsOption.get(2) always gives a NullPointer exception:
java.lang.NullPointerException
at org.drools.reteoo.PartitionManager.waitForPendingTasks(PartitionManager.java:105)
at org.drools.common.AbstractWorkingMemory.prepareToFireActivation(AbstractWorkingMemory.java:2090)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:845)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1071)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:785)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:751)
at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)
at org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:302)
at com.sample.DroolsTest.main(DroolsTest.java:70)
This looks similar to JIRA 2125, which was raised over a year ago.
Does this mean that this feature is completely non-functional?
Thanks,
Tim
15 years, 11 months
