Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.
logstash - logstash is a tool for managing events and logs.
Azure Service Bus - Learn how to set up messaging that connects applications and services across on-premises and cloud environments. Tutorials, videos, API references, and more.
rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.