This thesis focuses on comparison of the Apache Hadoop big data processing framework distributions. The theoretical part brings a brief insight into the big data area, a detailed description of the Apache Hadoop framework and ecosystem. The thesis also provides an overview of the Apache Hadoop big data processing framework distributions market situation. The practical part of the thesis introduces the possibilities of real-time big data processing within selected Apache Hadoop framework distributions in the form of performing a type Twitter social network data ingestion and processing task. Based on information found and data ingestion and processing results the comparison of selected Apache Hadoop framework distributions is accomplished. T...