Amazon EMR - Amazon Elastic MapReduce is a web service that makes it easy to quickly process vast amounts of data.
logstash - logstash is a tool for managing events and logs.
Impala - Impala is a modern, open source, distributed SQL query engine for Apache Hadoop.
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
SQream - SQream empowers organizations to analyze the full scope of their Massive Data, from terabytes to petabytes, to achieve critical insights which were previously unattainable.
rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...