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This is text. As I presume you are human you will understand the words and their meaning. Some words have multiple meanings like the word like. Also as English isn't my native tongue there will be errors in my writing but you will understand it anyway. Our brain is doing a fantastic job at inferring meaning from the context. This is something that is far more difficult for machines.
Last week I wrote about reindexing content in Elasticsearch using a script that extracts the source field from the indexed content. You can use it for cases when your mapping changes or you need to adjust the index settings. After publishing the post Drew Raines mentioned that there is an easier way using the stream2es utility only. Time to have a look at it!
One of the crucial parts on any search application is the way you map your content to the analyzers. It will determine which query terms match the terms that are indexed with the documents. Sometimes during development you might notice that you didn't get this right from the beginning and need to reindex your data with a new mapping. While for some applications you can easily start the indexing process again this become more difficult for others. Luckily Elasticsearch by default stores the original content in the _source field. In this short article I will show you how to use a script developed by Simon Willnauer that lets you retrieve all the data and reindex it with a new mapping.
For the first time in several years I unfortunately had to skip this years Devoxx. There are so many tweets that remind me of the good talks going on there and I thought I would do something useful with them. So again I indexed them in Elasticsearch using the Twitter river and therefore can look at them using Kibana. David Pilato also has set up a public instance and I could imagine that there will be a more thorough analysis done by the Devoxx team but here are my thoughts on this years Devoxx without having been there.
I just returned from Lucene Solr Revolution Europe, the conference on everything Lucene and Solr which this year was held in Dublin. I always like to recap what I took from a conference so here are some impressions.