Dear Ahmed,
My suggestion is to stop tomcat, check if you have old tomcat instances
that are still active and kill them (sometime tomcat is not terminated
properly), and start tomcat again. Please note, that I'm not referring to
the Rest services that stop/start the CEP instance, but the tomcat itself.
Hope it will solve the problem.
Best regards,
Tali
Tali Yatzkar Haham
Smart Decision Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320
From: Ahmed Sadek <don1559 at gmail.com>
To: Tali Yatzkar-Haham/Haifa/IBM at IBMIL
Date: 12/05/2015 02:07 PM
Subject: Re: Problem with xml events CEP and orion
Thank you Tali for the explanation, this solved the problem and output
events were generated.
Unfortunately, I am hit with another error now from the logs it says:
Exception in thread "http-bio-8080-exec-226" java.lang.OutOfMemoryError:
PermGen space
Attached catalina.out
I googled and it seem related to heap memory allocated to tomcat, but
tomcat shouldn't run out memory since It's not even operational yet ?!
If you faced this error before or can give me some hints, I would be
grateful.
Best,
Ahmed
On Tue, May 12, 2015 at 8:55 AM, Tali Yatzkar-Haham <TALI at il.ibm.com>
wrote:
Hi Ahmed,
Probably the instructions are not clear enough.
You need to add two attributes to the BContextUpdate event.
The name of the first attribute is entityId, and it should be of type
String (the value of this attribute at run time will be "B1", but in your
event definition the name of the attribute should be entityId, and not B1)
The name of the second attribute is entityType, and it should be of type
String (the value of this attribute at run time will be "B", but in your
event definition the name of the attribute should be entityType , and not
B)
Those attributes would allow you to know which entity from which type got
a ContextUpdate event from Orion, and you can refer to those attributes in
your other definitions (EPA, segmentation contexts,..)
Best regards,
Tali
Tali Yatzkar Haham
Smart Decision Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320
From: Ahmed Sadek <don1559 at gmail.com>
To: Tali Yatzkar-Haham/Haifa/IBM at IBMIL
Cc: "fiware-tech-he." <fiware-tech-help at lists.fi-ware.org>, Fabiana
Fournier/Haifa/IBM at IBMIL
Date: 12/05/2015 09:01 AM
Subject: Re: Problem with xml events CEP and orion
Dear Tali,
I have read it multiple times, honestly. my understanding from those two
lines is that I should add two attributes and I have added them indeed.
1- entityId ? of type String -> Inside event BContextUpdate-> attribute B1
string since this is the entity id.
2- entityType ? of type String -> Inside event BContextUpdate-> attribute
B string since this is the entityType.
"name": "BContextUpdate",
"attributes": [
{
"dimension": 0,
"name": "Temperature",
"type": "Integer"
},
{
"dimension": "0",
"name": "SoC",
"type": "Integer"
},
{
"dimension": "0",
"name": "B",
"type": "String"
},
{
"dimension": "0",
"name": "B1",
"type": "String"
}
]
Did I understand this correctly ?
Best,
Ahmed
On Tue, May 12, 2015 at 6:29 AM, Tali Yatzkar-Haham <TALI at il.ibm.com>
wrote:
Dear Ahmed,
Please read the CEP user guide appendix carefully, since there are several
integration details that you must follow. It seems that the issue you see
can be solved by following this requirement from the appendix:
In the IBM Proactive Technology Online application, such event type must
be defined. This event must have all the context attributes defined in the
subscription, and have two additional mandatory attributes:
? entityId ? of type String. This attribute holds the entityId value
provided in the message ("OUTSMART.NODE_3505" in the example above)
? entityType ? of type String. This attributes holds the entity type
provided in the message ("Node" in the example above)
Best regards,
Tali
Tali Yatzkar Haham
Smart Decision Solutions
IBM Haifa Research Lab, Israel
tali at il.ibm.com 972-4-8296320
From: Ahmed Sadek <don1559 at gmail.com>
To: Tali Yatzkar-Haham/Haifa/IBM at IBMIL
Date: 12/05/2015 02:00 AM
Subject: Problem with xml events CEP and orion
Dear Tali,
I am trying to post xml events (from orion) to the CEP, but I am getting
null point exception errors.
Can you help me and tell me where is the problem.
When I POST this even I also get null point exception.
POST http://194.28.122.7:8080//ProtonOnWebServer/rest/events
<notifyContextRequest>
<subscriptionId>555128ffa85d63e238d75d8b</subscriptionId>
<originator>localhost</originator>
<contextResponseList>
<contextElementResponse>
<contextElement>
<entityId type="B" isPattern="false">
<id>B1</id>
</entityId>
<contextAttributeList>
<contextAttribute>
<name>Temperature</name>
<type>float</type>
<contextValue>10</contextValue>
</contextAttribute>
<contextAttribute>
<name>SoC</name>
<type>integer</type>
<contextValue>10</contextValue>
</contextAttribute>
</contextAttributeList>
</contextElement>
<statusCode>
<code>200</code>
<reasonPhrase>OK</reasonPhrase>
</statusCode>
</contextElementResponse>
</contextResponseList>
</notifyContextRequest>
Attached the definition file and last catalina log.
Best,
Ahmed Sadek[attachment "cataline.out" deleted by Tali
Yatzkar-Haham/Haifa/IBM] [attachment "lumtest.json" deleted by Tali
Yatzkar-Haham/Haifa/IBM]
[attachment "catalina.out" deleted by Tali Yatzkar-Haham/Haifa/IBM]
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