indexers

The Logstash Indexing layer receives data from any number of input sources, transforms the data, and then submits it to Elasticsearch for indexing.  Transforming and extracting data from every event can be both I/O as well as CPU intensive. Horizontal or Vertical Vertical scaling will only go so far in the Logstash indexing layer.  In … ELK: Performance of the Logstash Indexing layer