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[FLaNK] Smart Weather Applications with Flink SQL

 [FLaNK] Smart Weather Applications with Flink SQL 


Sometimes you want to acquire, route, transform, live query and analyze all the weather data in the United States while those reports happen.   With FLaNK, it's a trivial process to do.





From Kafka to Kudu for Any Schema of Any Type of Data, No Code, Two Steps


The Schema Registry has full Swagger-ized Runnable REST API Documentation.   Integrate, DevOps and Migration in a simple script


Here's your schemas, upload, edit and compare.


Validating Data Against a Schema With Your Approved Level of Tolerance.   You want extra fields allowed, you got it.

nifi

Feed that data to beautiful visual applications running in Cloudera Machine Learning.

You like drill down maps, you got them.


Query your data fast with Apache Hue against Apache Kudu tables through Apache Impala.



Let's ingest all the US weather stations even though they are a zipped directory of a ton of XML files.



Weather Ingest is Easy Automagically


View All Your Topic Data Enabled by Schema Registry Even in Avro Format




Reference:

https://www.datainmotion.dev/2020/07/ingesting-all-weather-data-with-apache.html


Source:

Build

https://github.com/tspannhw/ApacheConAtHome2020/blob/main/scripts/setup.sh

Query

https://github.com/tspannhw/ApacheConAtHome2020/blob/main/scripts/flink.sh


SQL

INSERT INTO weathernj
SELECT `location`, station_id,latitude,longitude,observation_time,weather,
temperature_string, temp_f,temp_c,relative_humidity,wind_string,wind_dir,wind_degrees,wind_mph,
wind_kt, pressure_in,dewpoint_string,dewpoint_f,dewpoint_c
FROM weather
WHERE
`location` is not null and `location` <> 'null' and trim(`location`) <> '' and `location` like '%NJ';

Kafka Insert

https://github.com/tspannhw/ApacheConAtHome2020/blob/main/flinksql/weathernj.sql

Schemas

https://github.com/tspannhw/ApacheConAtHome2020/blob/main/schemas/weathernj.avsc

https://github.com/tspannhw/ApacheConAtHome2020/blob/main/schemas/weather.avsc

Example Slack Output

=========================================================
http://forecast.weather.gov/images/wtf/small/ovc.pngLocation Cincinnati/Northern Kentucky International Airport, KY Station KCVG
Temperature: 49.0 F (9.4 C)
Humdity: 83
Wind East at 3.5 MPH (3 KT)
Overcast
Dewpoint 44.1 F (6.7 C)Observed at Tue, 27 Oct 2020 11:52:00 -0400---- tracking info ----          UUID: 2cb6bd67-148c-497d-badf-dfffb4906b89
  Kafka offset: 0
Kafka Timestamp: 1603818351260
=========================================================

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