Plot geolocation data with ELK
OUR EXPERT
Simon Quain works as a site reliability engineer who likes finding open datasets online to play around with in the Elastic Stack.
QUICK TIP
If you need to increase the resources available to Logstash or Elasticsearch, edit the -Xms and and -Xmx parameters in their respective config/jvm. options file which is set to 1 gigabyte by default
Once you’ve defined a mapping for a field in Elasticsearch it can’t be changed. If you change your mind, you’ll need to delete the index, recreate the mapping and then reindex your data.
A quick way to index ratings for multiple authorities in one go is to download several files, concatenate them together into one file so that each of those file’s contents is on a new line and then run that through Logstash.
Back in we visualised COVID-19 statistics with data from the European Open Data Portal, the search engine , its GUI Kibana and a little help from Kibana’s new Data Visualizer to get the data into for us. This time we’ll be parsing the data ourselves with the help of a nifty tool called . can take data from an input, do some processing to it and then send it off to a desired output. is able to work with a wide variety of inputs from Azure Event Hubs.
