Created question in FIWARE Q/A platform on 25-05-2016 at 20:05
Please, ANSWER this question AT https://stackoverflow.com/questions/37445486/iot-broker-seems-to-disagree-with-iot-discovery

Question:
IoT Broker seems to disagree with IoT Discovery

Description:
I have the next configuration:

IoTBroker(v.5.2.3) <-----> IotDicovery(v.4.3)

when I issue a

GET **/ngsi10/contextEntities/EntityName**

message to the IoTBroker it automatically generates a

**/ngsi9/discoverContext/Availability**

query to the IoTDiscovery. The IoTDiscovery then answers positively with a

200 OK HTTP message

with the information about the EntityName required.

The problem is that when the IoTBroker makes the final response, it responds with a 404 NOT FOUND HTTP Message.

This is the POST HTTP message being automatically generated by the IoTBroker to the the IoTDiscovery:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<discoverContextAvailabilityRequest>
<entityIdList>
<entityId isPattern="false">
<id>Room</id>
</entityId>
</entityIdList>
<attributeList/>
<restriction>
<attributeExpression>
</attributeExpression>
<scope>
<operationScope>
<scopeType>
IncludeAssociations
</scopeType>
<scopeValue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xsi:type="xs:string">
SOURCES
</scopeValue>
</operationScope>
</scope>
</restriction>
</discoverContextAvailabilityRequest>

and this is the response from the IoTDiscovery to the IoTBroker, where apparently everything is OK:

<?xml version="1.0" encoding="UTF-8"?><discoverContextAvailabilityResponse>
<contextRegistrationResponseList>
<contextRegistrationResponse>
<contextRegistration>
<entityIdList>
<entityId type="Room" isPattern="false">
<id>ConferenceRoom</id>
</entityId>
</entityIdList>
<contextRegistrationAttributeList>
<contextRegistrationAttribute>
<name>temperature</name>
<type>degree</type>
<isDomain>false</isDomain>
<metadata>
<contextMetadata>
<name>unit</name>
<type>string</type>
<value/>
</contextMetadata>
</metadata>
</contextRegistrationAttribute>
</contextRegistrationAttributeList>
<providingApplication>http://192.168.100.1:70/tempApplication
...</providingApplication>
</contextRegistration>
</contextRegistrationResponse>
</contextRegistrationResponseList>
<errorCode>
<code>200</code>
<reasonPhrase>OK</reasonPhrase>
<details xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">Result</details>
</errorCode>
</discoverContextAvailabilityResponse>