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Questions tagged [fiware-perseo]

The Perseo Generic Enabler introduces Complex Event Processing (CEP) defined using a rules-based system, enabling you to fire events which send HTTP requests, emails, tweets, SMS messages etc.

The Perseo Complex Event Processing (CEP) Generic Enabler is a module that listens to events from context data (coming from Orion Context Broker or any other NGSI-compliant system or service) in real-time, and generates events using ESPER based rules.

Events can trigger tweets, emails, SMS messages or HTTP Requests. The payload body of the event can include further information, or can be used for further processing.

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13 questions
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Are esper time intervals supported in fiware perseo?

I'm trying to model a rule for perseo CEP using esper time intervals (timer:interval), like the one documented on http://esper.espertech.com/release-6.1.0/esper-reference/html/event_patterns.html#pattern-atoms. In particular this example which must…
Andres Aguirre Dorelo
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Installation timeout on Perseo Docker Build

I'm trying to install perseo following the guide from https://github.com/telefonicaid/perseo-core/blob/master/documentation/deployment.md I guess that I have to install perseo-core first and after I have to install perseo-fe. When I'm trying to…
Ignacio Gomez Maqueda
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Perseo fe docker instance fail to start

I am facing with the following issue: I am trying to deploy FIWARE-Perseo to my Centos 7 server as docker instances. Although the perseocore instance runs without a problem, it doesn't happen the same with the perseo front end. It is created but…
Anastasios Oikonomidis
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FiWARE: Detecting when a sensor is not sending data to Orion CB

I'm wondering if there is any way of detecting that a specific sensor, in a specific path, has stopped sending data to the Orion Context Broker. Then, if that happens, be able to execute some kind of alarm. I've been studying FiWARE for some months…
S. Mancini
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Visual Rules in Perseo-CEP

I have been trying to use perseo API with fiware-orion and a question came up: The Documentation (https://github.com/telefonicaid/perseo-fe/blob/master/documentation/architecture.md) talks about "Visual Rules": JSON rules generated by a portal…
Salvador Peñalva
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Error in updating entities with Perseo in FIWARE

I am using Perseo, trying to define a rule that update an entity's attribute by using this post request to Perseo: curl -iX POST \ "http://localhost:9090/rules" \ -H 'Content-Type: application/json' \ -H 'fiware-service: openiot' \ -H…
hadi nk
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Fiware Orion Context Broker-Send notifications after a period of time

I want to create a subscription for an entity and to be notified by context broker after a change of measure after a specific time. For example if humidity reaches a threshold i don't want to be notified. But if humidity measurement is changed and…
Kostas Tsakos
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Perseo front end is showing this errors in the logs: msg=missing subservice header msg=missing service header

Using perseo cep, I set a rule to it. I get this message in the Perseo fron End's Log: http://perseo-core:8080/perseo-core/rules returns {"code":200,"body":{}}. Then when I modify an attribute, in the Perseo Core's Log I see this message: msg=Firing…
Antonio Moreno Borras
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Perseo rule can't be created: Event type not found

I'm emulating a dummy scenario to play around with Perseo and Orion. I'm using 4 docker containers: Mongo, Orion, Perseo FE, and Perseo Core. All of them running healthy. The steps that I'm doing are: First, I create the entity with POST to Orion…
David Corral
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DataTime in Perseo CEP

I am using CEP to modify type date fields with update mode. Entities: { "id":"controller", "type":"control", "lasmodify":{ "type":"DataTime", "value":"" } } { "id":"Device01", "type":"device", "id_controller":{ …
Antonio Fernandez
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How could I do the following example with Fiware-Perseo-fe

I am trying to execute the following example: I have created two entities in orionCB. service= test subservice=/subtest { "id":"sensor1", "type":"sensor", "id_accumulator":"accumulator1", "typeEvent": 1 //can be 1 or 0 } { …
Antonio Fernandez
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perseo rules, how to get average of specific time window?

How can I use patterns in perseo rules with time windows? I have tried many different combinations, following the directions of EsperTech Tutorials, though, none of them was successful each time I post it to perseo. Any example for time window and…
Anastasios Oikonomidis
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What is the value of the property PERSEO_ORION_URL=http://orion.docker:1026/v1/updateContext in V2 Version

I am configuring fiware Perso Cep and I have the value of this property for the V1 version but I am working with V2 version. I have look for but I only found the V1 value PERSEO_ORION_URL=http://orion.docker:1026/v1/updateContext I expect to se the…
Antonio Moreno Borras
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