The text discusses the implementation and benefits of using ingest nodes in Elasticsearch 5.0 as part of the Elastic Stack deployment, specifically for transforming data before indexing. While traditionally Logstash has been used for data transformation, ingest nodes offer an efficient alternative for simpler tasks by allowing direct connections from Beats like Filebeat and Winlogbeat to Elasticsearch, thus potentially reducing the need for message queues. The text provides a detailed guide on configuring Elasticsearch, Filebeat, and Kibana to ingest and visualize web access logs from an Apache server. It highlights that ingest nodes streamline processes and simplify architecture when complex Logstash filters are unnecessary, leveraging the efficiency of operations performed within Elasticsearch. The integration with Kibana and its Timelion feature further enhances data visualization capabilities, making it a comprehensive solution for data processing and analysis.