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Questions tagged [wso2-cep]

251 questions
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wso2 cep - SiddhiQL - sum different rows from the same event table

I have one event table called eventCount and has the following values: ID | eventCount 1 3 2 1 3 5 4 1 I have a stream of data coming in where I count the values of a certain type for a time period (1…
JoaoFilipeClementeMartins
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WSO2 CEP: Can I query from rdms table inside siddhi query

I am trying to learn WSO2 CEP 4.2.0, and I stumble upon some problem with Siddhi query. Can I getting data from other system rdbms table to use it in event processing ? From WSO2 CEP documentation I found about event table, but that's not what I…
Dfirmansyah
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WSO2 CEP Event Tables - How to see the records on an event table

I am trying to check the events inside of an event table without joining it with an incoming stream of data. Is this even possible in WSO2 CEP? The following is not possivle: from event_table select * insert into print_output_stream; Is it…
JoaoFilipeClementeMartins
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CEP Dashboard - Visualizing points in Geo Map gadget

I have an output stream which has lat-long points with a set of other attributes. When I output the same stream as a table gadget I get below data (screen shot). But when I use the same stream for a Geo Map gadget, it doesn't visualize the points or…
Asanka Perera
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wso2 cep stored procedures in SQL Server 2016

I am trying to run a stored procedure in WSO2 CEP with SQL Server 2016. Is this possible? I already looked through the documentation on this which is scarce. there is only one sample with connection to SQL Server. Although, it looks like it is…
JoaoFilipeClementeMartins
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Matching the absence of events

I have a simple stream of status of objects : define stream statusStream (id string, success bool); I want to query all of objects which are "failed" (success=false) since 5 minutes : all event of statusStream (, false) where there are no event…
Jérémie B
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wso2 CEP same query several times with different time window

I want to do the following statistic in WSO2 CEP: get the count() of all events that arrive in a stream. And I want to do it for the following windows: 5 min, 10 min, 30 min, 60 min. For this I am doing the following code: from stream#window.time(5…
JoaoFilipeClementeMartins
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Can esper/siddhi generate new stream according to the group by?

I want to devide each group into a new stream(I want the operation for the group, not for the stream) .Dose there any methods to do that in esper or siddhi?
陶加涛
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wso2 cep externalTime issue

According to User Guide I suppose that externalTime window (timestamp,time value) should keep events only in range:from timestamp to timestamp + time value. For example, in execution plan from input select…
Pavel
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WSO2 stream health checks

Based on what I read on documentation and source code, WSO2CEP works as a passive software, so it only does something if a stream event arrives on it. So if I want to develop some "health check" on the stream, I need to implement it by myself. My…
Marcelo Sabino
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WSO2 CEP bidirectional REST API

I'm using wso2 cep 4.1 I created receiver to catch some json data from my source. Then I process this data internally and should give the response with additional data. My response should be through the same point as data come in to CEP. It is…
Alex B
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How can I set priority on event flows in wso2cep?

Let's say, we have several event flows. Some of them loads reference data to hazelcast event tables and others are actual event processors. My objective is, while wso2cep server starts up, it will first run those event flows which are loading…
Obaid
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WSO2 CEP - Single Event Table for Multiple Execution PLans

I have been exploring WSO2 CEP for last couple of days. I am considering a scenario where a single lookup table could be used in multiple execution plans. As far as I know, only way to store data all data is event table. My questions are: Can I…
Obaid
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Complex joining condition on event_table in WSO2 CEP

I need to implement a filtering feature on events using WSO2 CEP 4.1.0. My filters are stored in a PostgreSQL database. To do this, I created an event_table configuration, and I join my event on this event_table stream. My filters can have default…
Astrorvald
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WSO2: Dashboard can't access published event data from CEP

I've installed CEP and Dashboard Server (WSO2) yesterday on my Mac. My problem is, that my dashboard does not get the data of the events i simulated. I can create the gadgets and also see which attributes are defined in the data stream, but when i…
Joe.H
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